Abstract

We demonstrate random lasing with star-shaped gold nanoparticles (“nanostars”) as scattering centers embedded in a dye-doped gain medium. It is experimentally shown that star-shaped gold nanoparticles outperform those of conventional shapes, such as spherical or prolate nanoparticles. The nanoparticles are randomly distributed within a thin film of gain medium, forming resonators which support coherent laser modes. Driven by single-pulsed excitation, the random lasers exhibit coherent lasing thresholds in the order of 0.9 mJ/cm2 and spectrally narrow emission peaks with linewidths less than 0.2 nm. The distinguished random laser comprising nanostars is likely to take advantage of the high plasmonic field enhancements, localized at the spiky tips of the nanostars, which improves the feedback mechanism for lasing and increases the emission intensity of the random laser.

© 2015 Optical Society of America

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    [Crossref]
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    [Crossref]
  4. H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, “Random laser action in semiconductor powder,” Phys. Rev. Lett. 82(11), 2278–2281 (1999).
    [Crossref]
  5. S. V. Frolov, Z. V. Vardeny, K. Yoshino, A. Zakhidov, and R. H. Baughman, “Stimulated emission in high-gain organic media,” Phys. Rev. B 59(8), R5284–R5287 (1999).
    [Crossref]
  6. X. Jiang and C. M. Soukoulis, “Time dependent theory for random lasers,” Phys. Rev. Lett. 85(1), 70–73 (2000).
    [Crossref] [PubMed]
  7. V. M. Apalkov, M. E. Raikh, and B. Shapiro, “Random resonators and prelocalized modes in disordered dielectric films,” Phys. Rev. Lett. 89(1), 016802 (2002).
    [Crossref] [PubMed]
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    [Crossref] [PubMed]
  9. O. Zaitsev and L. Deych, “Recent developments in the theory of multimode random lasers,” J. Opt. 12(2), 024001 (2010).
    [Crossref]
  10. S. Gottardo, S. Cavalieri, O. Yaroshchuk, and D. S. Wiersma, “Quasi-two-dimensional diffusive random laser action,” Phys. Rev. Lett. 93(26), 263901 (2004).
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    [Crossref]
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    [Crossref]
  13. Q. Song, S. Xiao, Z. Xu, J. Liu, X. Sun, V. Drachev, V. M. Shalaev, O. Akkus, and Y. L. Kim, “Random lasing in bone tissue,” Opt. Lett. 35(9), 1425–1427 (2010).
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  14. A. Smuk, E. Lazaro, L. P. Olson, and N. M. Lawandy, “Random laser action in bovine semen,” Opt. Commun. 284(5), 1257–1258 (2011).
    [Crossref]
  15. E. Dulkeith, A. C. Morteani, T. Niedereichholz, T. A. Klar, J. Feldmann, S. A. Levi, F. C. J. M. van Veggel, D. N. Reinhoudt, M. Möller, and D. I. Gittins, “Fluorescence quenching of dye molecules near gold nanoparticles: radiative and nonradiative effects,” Phys. Rev. Lett. 89(20), 203002 (2002).
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    [Crossref]
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    [Crossref]
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    [Crossref] [PubMed]
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  23. O. Popov, A. Zilbershtein, and D. Davidov, “Random lasing from dye-gold nanoparticles in polymer films: Enhanced gain at the surface-plasmon-resonance wavelength,” Appl. Phys. Lett. 89(19), 191116 (2006).
    [Crossref]
  24. T. Zhai, X. Zhang, Z. Pang, X. Su, H. Liu, S. Feng, and L. Wang, “Random laser based on waveguided plasmonic gain channels,” Nano Lett. 11(10), 4295–4298 (2011).
    [Crossref] [PubMed]
  25. E. Heydari, R. Flehr, and J. Stumpe, “Influence of spacer layer on enhancement of nanoplasmon-assisted random lasing,” Appl. Phys. Lett. 102(13), 133110 (2013).
    [Crossref]
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    [Crossref] [PubMed]
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    [Crossref] [PubMed]
  28. K. L. Shaklee and R. F. Leheny, “Direct determination of optical gain in semiconductor crystals,” Appl. Phys. Lett. 18(11), 475–477 (1971).
    [Crossref]
  29. G. Somasundaram and A. Ramalingam, “Gain studies of Rhodamine 6G dye doped polymer laser,” J. Photochem. Photobiol. Chem. 125(1-3), 93–98 (1999).
    [Crossref]
  30. S. Kéna-Cohen, P. N. Stavrinou, D. D. C. Bradley, and S. A. Maier, “Random lasing in low molecular weight organic thin films,” Appl. Phys. Lett. 99(4), 041114 (2011).
    [Crossref]
  31. X. Meng, A. V. Kildishev, K. Fujita, K. Tanaka, and V. M. Shalaev, “Wavelength-tunable spasing in the visible,” Nano Lett. 13(9), 4106–4112 (2013).
    [Crossref] [PubMed]
  32. C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, G. Laurent, L. Douillard, and F. Charra, “Selective excitation of individual plasmonic hotspots at the tips of single gold nanostars,” Nano Lett. 11(2), 402–407 (2011).
    [Crossref] [PubMed]
  33. C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, and J. Feldmann, “Single gold nanostars enhance Raman scattering,” Appl. Phys. Lett. 94(15), 153113 (2009).
    [Crossref]
  34. K. L. van der Molen, R. W. Tjerkstra, A. P. Mosk, and A. Lagendijk, “Spatial extent of random laser modes,” Phys. Rev. Lett. 98(14), 143901 (2007).
    [Crossref] [PubMed]
  35. H. E. Türeci, L. Ge, S. Rotter, and A. D. Stone, “Strong interactions in multimode random lasers,” Science 320(5876), 643–646 (2008).
    [Crossref] [PubMed]

2014 (2)

S. Khatua, P. M. R. Paulo, H. Yuan, A. Gupta, P. Zijlstra, and M. Orrit, “Resonant plasmonic enhancement of single-molecule fluorescence by individual gold nanorods,” ACS Nano 8(5), 4440–4449 (2014).
[Crossref] [PubMed]

E. M. Perassi, C. Hrelescu, A. Wisnet, M. Döblinger, C. Scheu, F. Jäckel, E. A. Coronado, and J. Feldmann, “Quantitative understanding of the optical properties of a single, complex-shaped gold nanoparticle from experiment and theory,” ACS Nano 8(5), 4395–4402 (2014).
[Crossref] [PubMed]

2013 (2)

X. Meng, A. V. Kildishev, K. Fujita, K. Tanaka, and V. M. Shalaev, “Wavelength-tunable spasing in the visible,” Nano Lett. 13(9), 4106–4112 (2013).
[Crossref] [PubMed]

E. Heydari, R. Flehr, and J. Stumpe, “Influence of spacer layer on enhancement of nanoplasmon-assisted random lasing,” Appl. Phys. Lett. 102(13), 133110 (2013).
[Crossref]

2012 (1)

S. Murai, Y. Tokuda, K. Fujita, and K. Tanaka, “Tuning the wavelength of amplified spontaneous emission coupled to localized surface plasmon,” Appl. Phys. Lett. 101(3), 031117 (2012).
[Crossref]

2011 (6)

X. Meng, K. Fujita, S. Murai, T. Matoba, and K. Tanaka, “Plasmonically controlled lasing resonance with metallic-dielectric core-shell nanoparticles,” Nano Lett. 11(3), 1374–1378 (2011).
[Crossref] [PubMed]

C. T. Dominguez, R. L. Maltez, R. Dos Reis, L. S. de Melo, C. B. de Araújo, and A. S. Gomes, “Dependence of random laser emission on silver nanoparticle density in PMMA films containing Rhodamine 6G,” JOSA B 28, 1118–1123 (2011).

T. Zhai, X. Zhang, Z. Pang, X. Su, H. Liu, S. Feng, and L. Wang, “Random laser based on waveguided plasmonic gain channels,” Nano Lett. 11(10), 4295–4298 (2011).
[Crossref] [PubMed]

S. Kéna-Cohen, P. N. Stavrinou, D. D. C. Bradley, and S. A. Maier, “Random lasing in low molecular weight organic thin films,” Appl. Phys. Lett. 99(4), 041114 (2011).
[Crossref]

C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, G. Laurent, L. Douillard, and F. Charra, “Selective excitation of individual plasmonic hotspots at the tips of single gold nanostars,” Nano Lett. 11(2), 402–407 (2011).
[Crossref] [PubMed]

A. Smuk, E. Lazaro, L. P. Olson, and N. M. Lawandy, “Random laser action in bovine semen,” Opt. Commun. 284(5), 1257–1258 (2011).
[Crossref]

2010 (2)

2009 (2)

C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, and J. Feldmann, “Single gold nanostars enhance Raman scattering,” Appl. Phys. Lett. 94(15), 153113 (2009).
[Crossref]

X. Meng, K. Fujita, S. Murai, and K. Tanaka, “Coherent random lasers in weakly scattering polymer films containing silver nanoparticles,” Phys. Rev. A 79(5), 053817 (2009).
[Crossref]

2008 (3)

X. Meng, K. Fujita, Y. Zong, S. Murai, and K. Tanaka, “Random lasers with coherent feedback from highly transparent polymer films embedded with silver nanoparticles,” Appl. Phys. Lett. 92(20), 201112 (2008).
[Crossref]

H. E. Türeci, L. Ge, S. Rotter, and A. D. Stone, “Strong interactions in multimode random lasers,” Science 320(5876), 643–646 (2008).
[Crossref] [PubMed]

D. S. Wiersma, “The physics and applications of random lasers,” Nat. Phys. 4(5), 359–367 (2008).
[Crossref]

2007 (2)

C. Vanneste, P. Sebbah, and H. Cao, “Lasing with resonant feedback in weakly scattering random systems,” Phys. Rev. Lett. 98(14), 143902 (2007).
[Crossref] [PubMed]

K. L. van der Molen, R. W. Tjerkstra, A. P. Mosk, and A. Lagendijk, “Spatial extent of random laser modes,” Phys. Rev. Lett. 98(14), 143901 (2007).
[Crossref] [PubMed]

2006 (1)

O. Popov, A. Zilbershtein, and D. Davidov, “Random lasing from dye-gold nanoparticles in polymer films: Enhanced gain at the surface-plasmon-resonance wavelength,” Appl. Phys. Lett. 89(19), 191116 (2006).
[Crossref]

2005 (2)

M. Liu and P. Guyot-Sionnest, “Mechanism of silver(I)-assisted growth of gold nanorods and bipyramids,” J. Phys. Chem. B 109(47), 22192–22200 (2005).
[Crossref] [PubMed]

G. D. Dice, S. Mujumdar, and A. Y. Elezzabi, “Plasmonically enhanced diffusive and subdiffusive metal nanoparticle-dye random laser,” Appl. Phys. Lett. 86(13), 131105 (2005).
[Crossref]

2004 (2)

S. Gottardo, S. Cavalieri, O. Yaroshchuk, and D. S. Wiersma, “Quasi-two-dimensional diffusive random laser action,” Phys. Rev. Lett. 93(26), 263901 (2004).
[Crossref] [PubMed]

R. C. Polson and Z. V. Vardeny, “Random lasing in human tissues,” Appl. Phys. Lett. 85(7), 1289–1291 (2004).
[Crossref]

2002 (2)

E. Dulkeith, A. C. Morteani, T. Niedereichholz, T. A. Klar, J. Feldmann, S. A. Levi, F. C. J. M. van Veggel, D. N. Reinhoudt, M. Möller, and D. I. Gittins, “Fluorescence quenching of dye molecules near gold nanoparticles: radiative and nonradiative effects,” Phys. Rev. Lett. 89(20), 203002 (2002).
[Crossref] [PubMed]

V. M. Apalkov, M. E. Raikh, and B. Shapiro, “Random resonators and prelocalized modes in disordered dielectric films,” Phys. Rev. Lett. 89(1), 016802 (2002).
[Crossref] [PubMed]

2000 (1)

X. Jiang and C. M. Soukoulis, “Time dependent theory for random lasers,” Phys. Rev. Lett. 85(1), 70–73 (2000).
[Crossref] [PubMed]

1999 (3)

H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, “Random laser action in semiconductor powder,” Phys. Rev. Lett. 82(11), 2278–2281 (1999).
[Crossref]

S. V. Frolov, Z. V. Vardeny, K. Yoshino, A. Zakhidov, and R. H. Baughman, “Stimulated emission in high-gain organic media,” Phys. Rev. B 59(8), R5284–R5287 (1999).
[Crossref]

G. Somasundaram and A. Ramalingam, “Gain studies of Rhodamine 6G dye doped polymer laser,” J. Photochem. Photobiol. Chem. 125(1-3), 93–98 (1999).
[Crossref]

1994 (1)

N. M. Lawandy, R. M. Balachandran, A. S. L. Gomes, and E. Sauvain, “Laser action in strongly scattering media,” Nature 368(6470), 436–438 (1994).
[Crossref]

1971 (1)

K. L. Shaklee and R. F. Leheny, “Direct determination of optical gain in semiconductor crystals,” Appl. Phys. Lett. 18(11), 475–477 (1971).
[Crossref]

1968 (1)

V. S. Letokhov, “Generation of light by a scattering medium with negative resonance absorption,” Sov. J. Exp. Theor. Phys. 26, 835–840 (1968).

1966 (1)

R. V. Ambartsumyan, N. G. Basov, P. G. Kryukov, and V. S. Letokhov, “5A10 (b)-a laser with a nonresonant feedback,” J. Quantum Electron. IEEE 2(9), 442–446 (1966).
[Crossref]

Akkus, O.

Ambartsumyan, R. V.

R. V. Ambartsumyan, N. G. Basov, P. G. Kryukov, and V. S. Letokhov, “5A10 (b)-a laser with a nonresonant feedback,” J. Quantum Electron. IEEE 2(9), 442–446 (1966).
[Crossref]

Apalkov, V. M.

V. M. Apalkov, M. E. Raikh, and B. Shapiro, “Random resonators and prelocalized modes in disordered dielectric films,” Phys. Rev. Lett. 89(1), 016802 (2002).
[Crossref] [PubMed]

Balachandran, R. M.

N. M. Lawandy, R. M. Balachandran, A. S. L. Gomes, and E. Sauvain, “Laser action in strongly scattering media,” Nature 368(6470), 436–438 (1994).
[Crossref]

Basov, N. G.

R. V. Ambartsumyan, N. G. Basov, P. G. Kryukov, and V. S. Letokhov, “5A10 (b)-a laser with a nonresonant feedback,” J. Quantum Electron. IEEE 2(9), 442–446 (1966).
[Crossref]

Baughman, R. H.

S. V. Frolov, Z. V. Vardeny, K. Yoshino, A. Zakhidov, and R. H. Baughman, “Stimulated emission in high-gain organic media,” Phys. Rev. B 59(8), R5284–R5287 (1999).
[Crossref]

Bradley, D. D. C.

S. Kéna-Cohen, P. N. Stavrinou, D. D. C. Bradley, and S. A. Maier, “Random lasing in low molecular weight organic thin films,” Appl. Phys. Lett. 99(4), 041114 (2011).
[Crossref]

Cao, H.

C. Vanneste, P. Sebbah, and H. Cao, “Lasing with resonant feedback in weakly scattering random systems,” Phys. Rev. Lett. 98(14), 143902 (2007).
[Crossref] [PubMed]

H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, “Random laser action in semiconductor powder,” Phys. Rev. Lett. 82(11), 2278–2281 (1999).
[Crossref]

Cavalieri, S.

S. Gottardo, S. Cavalieri, O. Yaroshchuk, and D. S. Wiersma, “Quasi-two-dimensional diffusive random laser action,” Phys. Rev. Lett. 93(26), 263901 (2004).
[Crossref] [PubMed]

Chang, R. P. H.

H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, “Random laser action in semiconductor powder,” Phys. Rev. Lett. 82(11), 2278–2281 (1999).
[Crossref]

Charra, F.

C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, G. Laurent, L. Douillard, and F. Charra, “Selective excitation of individual plasmonic hotspots at the tips of single gold nanostars,” Nano Lett. 11(2), 402–407 (2011).
[Crossref] [PubMed]

Coronado, E. A.

E. M. Perassi, C. Hrelescu, A. Wisnet, M. Döblinger, C. Scheu, F. Jäckel, E. A. Coronado, and J. Feldmann, “Quantitative understanding of the optical properties of a single, complex-shaped gold nanoparticle from experiment and theory,” ACS Nano 8(5), 4395–4402 (2014).
[Crossref] [PubMed]

Davidov, D.

O. Popov, A. Zilbershtein, and D. Davidov, “Random lasing from dye-gold nanoparticles in polymer films: Enhanced gain at the surface-plasmon-resonance wavelength,” Appl. Phys. Lett. 89(19), 191116 (2006).
[Crossref]

de Araújo, C. B.

C. T. Dominguez, R. L. Maltez, R. Dos Reis, L. S. de Melo, C. B. de Araújo, and A. S. Gomes, “Dependence of random laser emission on silver nanoparticle density in PMMA films containing Rhodamine 6G,” JOSA B 28, 1118–1123 (2011).

de Melo, L. S.

C. T. Dominguez, R. L. Maltez, R. Dos Reis, L. S. de Melo, C. B. de Araújo, and A. S. Gomes, “Dependence of random laser emission on silver nanoparticle density in PMMA films containing Rhodamine 6G,” JOSA B 28, 1118–1123 (2011).

Deych, L.

O. Zaitsev and L. Deych, “Recent developments in the theory of multimode random lasers,” J. Opt. 12(2), 024001 (2010).
[Crossref]

Dice, G. D.

G. D. Dice, S. Mujumdar, and A. Y. Elezzabi, “Plasmonically enhanced diffusive and subdiffusive metal nanoparticle-dye random laser,” Appl. Phys. Lett. 86(13), 131105 (2005).
[Crossref]

Döblinger, M.

E. M. Perassi, C. Hrelescu, A. Wisnet, M. Döblinger, C. Scheu, F. Jäckel, E. A. Coronado, and J. Feldmann, “Quantitative understanding of the optical properties of a single, complex-shaped gold nanoparticle from experiment and theory,” ACS Nano 8(5), 4395–4402 (2014).
[Crossref] [PubMed]

Dominguez, C. T.

C. T. Dominguez, R. L. Maltez, R. Dos Reis, L. S. de Melo, C. B. de Araújo, and A. S. Gomes, “Dependence of random laser emission on silver nanoparticle density in PMMA films containing Rhodamine 6G,” JOSA B 28, 1118–1123 (2011).

Dos Reis, R.

C. T. Dominguez, R. L. Maltez, R. Dos Reis, L. S. de Melo, C. B. de Araújo, and A. S. Gomes, “Dependence of random laser emission on silver nanoparticle density in PMMA films containing Rhodamine 6G,” JOSA B 28, 1118–1123 (2011).

Douillard, L.

C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, G. Laurent, L. Douillard, and F. Charra, “Selective excitation of individual plasmonic hotspots at the tips of single gold nanostars,” Nano Lett. 11(2), 402–407 (2011).
[Crossref] [PubMed]

Drachev, V.

Dulkeith, E.

E. Dulkeith, A. C. Morteani, T. Niedereichholz, T. A. Klar, J. Feldmann, S. A. Levi, F. C. J. M. van Veggel, D. N. Reinhoudt, M. Möller, and D. I. Gittins, “Fluorescence quenching of dye molecules near gold nanoparticles: radiative and nonradiative effects,” Phys. Rev. Lett. 89(20), 203002 (2002).
[Crossref] [PubMed]

Elezzabi, A. Y.

G. D. Dice, S. Mujumdar, and A. Y. Elezzabi, “Plasmonically enhanced diffusive and subdiffusive metal nanoparticle-dye random laser,” Appl. Phys. Lett. 86(13), 131105 (2005).
[Crossref]

Feldmann, J.

E. M. Perassi, C. Hrelescu, A. Wisnet, M. Döblinger, C. Scheu, F. Jäckel, E. A. Coronado, and J. Feldmann, “Quantitative understanding of the optical properties of a single, complex-shaped gold nanoparticle from experiment and theory,” ACS Nano 8(5), 4395–4402 (2014).
[Crossref] [PubMed]

C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, and J. Feldmann, “Single gold nanostars enhance Raman scattering,” Appl. Phys. Lett. 94(15), 153113 (2009).
[Crossref]

E. Dulkeith, A. C. Morteani, T. Niedereichholz, T. A. Klar, J. Feldmann, S. A. Levi, F. C. J. M. van Veggel, D. N. Reinhoudt, M. Möller, and D. I. Gittins, “Fluorescence quenching of dye molecules near gold nanoparticles: radiative and nonradiative effects,” Phys. Rev. Lett. 89(20), 203002 (2002).
[Crossref] [PubMed]

Feng, S.

T. Zhai, X. Zhang, Z. Pang, X. Su, H. Liu, S. Feng, and L. Wang, “Random laser based on waveguided plasmonic gain channels,” Nano Lett. 11(10), 4295–4298 (2011).
[Crossref] [PubMed]

Flehr, R.

E. Heydari, R. Flehr, and J. Stumpe, “Influence of spacer layer on enhancement of nanoplasmon-assisted random lasing,” Appl. Phys. Lett. 102(13), 133110 (2013).
[Crossref]

Frolov, S. V.

S. V. Frolov, Z. V. Vardeny, K. Yoshino, A. Zakhidov, and R. H. Baughman, “Stimulated emission in high-gain organic media,” Phys. Rev. B 59(8), R5284–R5287 (1999).
[Crossref]

Fujita, K.

X. Meng, A. V. Kildishev, K. Fujita, K. Tanaka, and V. M. Shalaev, “Wavelength-tunable spasing in the visible,” Nano Lett. 13(9), 4106–4112 (2013).
[Crossref] [PubMed]

S. Murai, Y. Tokuda, K. Fujita, and K. Tanaka, “Tuning the wavelength of amplified spontaneous emission coupled to localized surface plasmon,” Appl. Phys. Lett. 101(3), 031117 (2012).
[Crossref]

X. Meng, K. Fujita, S. Murai, T. Matoba, and K. Tanaka, “Plasmonically controlled lasing resonance with metallic-dielectric core-shell nanoparticles,” Nano Lett. 11(3), 1374–1378 (2011).
[Crossref] [PubMed]

X. Meng, K. Fujita, S. Murai, and K. Tanaka, “Coherent random lasers in weakly scattering polymer films containing silver nanoparticles,” Phys. Rev. A 79(5), 053817 (2009).
[Crossref]

X. Meng, K. Fujita, Y. Zong, S. Murai, and K. Tanaka, “Random lasers with coherent feedback from highly transparent polymer films embedded with silver nanoparticles,” Appl. Phys. Lett. 92(20), 201112 (2008).
[Crossref]

Ge, L.

H. E. Türeci, L. Ge, S. Rotter, and A. D. Stone, “Strong interactions in multimode random lasers,” Science 320(5876), 643–646 (2008).
[Crossref] [PubMed]

Gittins, D. I.

E. Dulkeith, A. C. Morteani, T. Niedereichholz, T. A. Klar, J. Feldmann, S. A. Levi, F. C. J. M. van Veggel, D. N. Reinhoudt, M. Möller, and D. I. Gittins, “Fluorescence quenching of dye molecules near gold nanoparticles: radiative and nonradiative effects,” Phys. Rev. Lett. 89(20), 203002 (2002).
[Crossref] [PubMed]

Gomes, A. S.

C. T. Dominguez, R. L. Maltez, R. Dos Reis, L. S. de Melo, C. B. de Araújo, and A. S. Gomes, “Dependence of random laser emission on silver nanoparticle density in PMMA films containing Rhodamine 6G,” JOSA B 28, 1118–1123 (2011).

Gomes, A. S. L.

N. M. Lawandy, R. M. Balachandran, A. S. L. Gomes, and E. Sauvain, “Laser action in strongly scattering media,” Nature 368(6470), 436–438 (1994).
[Crossref]

Gottardo, S.

S. Gottardo, S. Cavalieri, O. Yaroshchuk, and D. S. Wiersma, “Quasi-two-dimensional diffusive random laser action,” Phys. Rev. Lett. 93(26), 263901 (2004).
[Crossref] [PubMed]

Gupta, A.

S. Khatua, P. M. R. Paulo, H. Yuan, A. Gupta, P. Zijlstra, and M. Orrit, “Resonant plasmonic enhancement of single-molecule fluorescence by individual gold nanorods,” ACS Nano 8(5), 4440–4449 (2014).
[Crossref] [PubMed]

Guyot-Sionnest, P.

M. Liu and P. Guyot-Sionnest, “Mechanism of silver(I)-assisted growth of gold nanorods and bipyramids,” J. Phys. Chem. B 109(47), 22192–22200 (2005).
[Crossref] [PubMed]

Heydari, E.

E. Heydari, R. Flehr, and J. Stumpe, “Influence of spacer layer on enhancement of nanoplasmon-assisted random lasing,” Appl. Phys. Lett. 102(13), 133110 (2013).
[Crossref]

Ho, S. T.

H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, “Random laser action in semiconductor powder,” Phys. Rev. Lett. 82(11), 2278–2281 (1999).
[Crossref]

Hrelescu, C.

E. M. Perassi, C. Hrelescu, A. Wisnet, M. Döblinger, C. Scheu, F. Jäckel, E. A. Coronado, and J. Feldmann, “Quantitative understanding of the optical properties of a single, complex-shaped gold nanoparticle from experiment and theory,” ACS Nano 8(5), 4395–4402 (2014).
[Crossref] [PubMed]

C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, G. Laurent, L. Douillard, and F. Charra, “Selective excitation of individual plasmonic hotspots at the tips of single gold nanostars,” Nano Lett. 11(2), 402–407 (2011).
[Crossref] [PubMed]

C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, and J. Feldmann, “Single gold nanostars enhance Raman scattering,” Appl. Phys. Lett. 94(15), 153113 (2009).
[Crossref]

Jäckel, F.

E. M. Perassi, C. Hrelescu, A. Wisnet, M. Döblinger, C. Scheu, F. Jäckel, E. A. Coronado, and J. Feldmann, “Quantitative understanding of the optical properties of a single, complex-shaped gold nanoparticle from experiment and theory,” ACS Nano 8(5), 4395–4402 (2014).
[Crossref] [PubMed]

C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, G. Laurent, L. Douillard, and F. Charra, “Selective excitation of individual plasmonic hotspots at the tips of single gold nanostars,” Nano Lett. 11(2), 402–407 (2011).
[Crossref] [PubMed]

C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, and J. Feldmann, “Single gold nanostars enhance Raman scattering,” Appl. Phys. Lett. 94(15), 153113 (2009).
[Crossref]

Jiang, X.

X. Jiang and C. M. Soukoulis, “Time dependent theory for random lasers,” Phys. Rev. Lett. 85(1), 70–73 (2000).
[Crossref] [PubMed]

Kéna-Cohen, S.

S. Kéna-Cohen, P. N. Stavrinou, D. D. C. Bradley, and S. A. Maier, “Random lasing in low molecular weight organic thin films,” Appl. Phys. Lett. 99(4), 041114 (2011).
[Crossref]

Khatua, S.

S. Khatua, P. M. R. Paulo, H. Yuan, A. Gupta, P. Zijlstra, and M. Orrit, “Resonant plasmonic enhancement of single-molecule fluorescence by individual gold nanorods,” ACS Nano 8(5), 4440–4449 (2014).
[Crossref] [PubMed]

Kildishev, A. V.

X. Meng, A. V. Kildishev, K. Fujita, K. Tanaka, and V. M. Shalaev, “Wavelength-tunable spasing in the visible,” Nano Lett. 13(9), 4106–4112 (2013).
[Crossref] [PubMed]

Kim, Y. L.

Klar, T. A.

E. Dulkeith, A. C. Morteani, T. Niedereichholz, T. A. Klar, J. Feldmann, S. A. Levi, F. C. J. M. van Veggel, D. N. Reinhoudt, M. Möller, and D. I. Gittins, “Fluorescence quenching of dye molecules near gold nanoparticles: radiative and nonradiative effects,” Phys. Rev. Lett. 89(20), 203002 (2002).
[Crossref] [PubMed]

Kryukov, P. G.

R. V. Ambartsumyan, N. G. Basov, P. G. Kryukov, and V. S. Letokhov, “5A10 (b)-a laser with a nonresonant feedback,” J. Quantum Electron. IEEE 2(9), 442–446 (1966).
[Crossref]

Lagendijk, A.

K. L. van der Molen, R. W. Tjerkstra, A. P. Mosk, and A. Lagendijk, “Spatial extent of random laser modes,” Phys. Rev. Lett. 98(14), 143901 (2007).
[Crossref] [PubMed]

Laurent, G.

C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, G. Laurent, L. Douillard, and F. Charra, “Selective excitation of individual plasmonic hotspots at the tips of single gold nanostars,” Nano Lett. 11(2), 402–407 (2011).
[Crossref] [PubMed]

Lawandy, N. M.

A. Smuk, E. Lazaro, L. P. Olson, and N. M. Lawandy, “Random laser action in bovine semen,” Opt. Commun. 284(5), 1257–1258 (2011).
[Crossref]

N. M. Lawandy, R. M. Balachandran, A. S. L. Gomes, and E. Sauvain, “Laser action in strongly scattering media,” Nature 368(6470), 436–438 (1994).
[Crossref]

Lazaro, E.

A. Smuk, E. Lazaro, L. P. Olson, and N. M. Lawandy, “Random laser action in bovine semen,” Opt. Commun. 284(5), 1257–1258 (2011).
[Crossref]

Leheny, R. F.

K. L. Shaklee and R. F. Leheny, “Direct determination of optical gain in semiconductor crystals,” Appl. Phys. Lett. 18(11), 475–477 (1971).
[Crossref]

Letokhov, V. S.

V. S. Letokhov, “Generation of light by a scattering medium with negative resonance absorption,” Sov. J. Exp. Theor. Phys. 26, 835–840 (1968).

R. V. Ambartsumyan, N. G. Basov, P. G. Kryukov, and V. S. Letokhov, “5A10 (b)-a laser with a nonresonant feedback,” J. Quantum Electron. IEEE 2(9), 442–446 (1966).
[Crossref]

Levi, S. A.

E. Dulkeith, A. C. Morteani, T. Niedereichholz, T. A. Klar, J. Feldmann, S. A. Levi, F. C. J. M. van Veggel, D. N. Reinhoudt, M. Möller, and D. I. Gittins, “Fluorescence quenching of dye molecules near gold nanoparticles: radiative and nonradiative effects,” Phys. Rev. Lett. 89(20), 203002 (2002).
[Crossref] [PubMed]

Liu, H.

T. Zhai, X. Zhang, Z. Pang, X. Su, H. Liu, S. Feng, and L. Wang, “Random laser based on waveguided plasmonic gain channels,” Nano Lett. 11(10), 4295–4298 (2011).
[Crossref] [PubMed]

Liu, J.

Liu, M.

M. Liu and P. Guyot-Sionnest, “Mechanism of silver(I)-assisted growth of gold nanorods and bipyramids,” J. Phys. Chem. B 109(47), 22192–22200 (2005).
[Crossref] [PubMed]

Maier, S. A.

S. Kéna-Cohen, P. N. Stavrinou, D. D. C. Bradley, and S. A. Maier, “Random lasing in low molecular weight organic thin films,” Appl. Phys. Lett. 99(4), 041114 (2011).
[Crossref]

Maltez, R. L.

C. T. Dominguez, R. L. Maltez, R. Dos Reis, L. S. de Melo, C. B. de Araújo, and A. S. Gomes, “Dependence of random laser emission on silver nanoparticle density in PMMA films containing Rhodamine 6G,” JOSA B 28, 1118–1123 (2011).

Matoba, T.

X. Meng, K. Fujita, S. Murai, T. Matoba, and K. Tanaka, “Plasmonically controlled lasing resonance with metallic-dielectric core-shell nanoparticles,” Nano Lett. 11(3), 1374–1378 (2011).
[Crossref] [PubMed]

Meng, X.

X. Meng, A. V. Kildishev, K. Fujita, K. Tanaka, and V. M. Shalaev, “Wavelength-tunable spasing in the visible,” Nano Lett. 13(9), 4106–4112 (2013).
[Crossref] [PubMed]

X. Meng, K. Fujita, S. Murai, T. Matoba, and K. Tanaka, “Plasmonically controlled lasing resonance with metallic-dielectric core-shell nanoparticles,” Nano Lett. 11(3), 1374–1378 (2011).
[Crossref] [PubMed]

X. Meng, K. Fujita, S. Murai, and K. Tanaka, “Coherent random lasers in weakly scattering polymer films containing silver nanoparticles,” Phys. Rev. A 79(5), 053817 (2009).
[Crossref]

X. Meng, K. Fujita, Y. Zong, S. Murai, and K. Tanaka, “Random lasers with coherent feedback from highly transparent polymer films embedded with silver nanoparticles,” Appl. Phys. Lett. 92(20), 201112 (2008).
[Crossref]

Möller, M.

E. Dulkeith, A. C. Morteani, T. Niedereichholz, T. A. Klar, J. Feldmann, S. A. Levi, F. C. J. M. van Veggel, D. N. Reinhoudt, M. Möller, and D. I. Gittins, “Fluorescence quenching of dye molecules near gold nanoparticles: radiative and nonradiative effects,” Phys. Rev. Lett. 89(20), 203002 (2002).
[Crossref] [PubMed]

Morteani, A. C.

E. Dulkeith, A. C. Morteani, T. Niedereichholz, T. A. Klar, J. Feldmann, S. A. Levi, F. C. J. M. van Veggel, D. N. Reinhoudt, M. Möller, and D. I. Gittins, “Fluorescence quenching of dye molecules near gold nanoparticles: radiative and nonradiative effects,” Phys. Rev. Lett. 89(20), 203002 (2002).
[Crossref] [PubMed]

Mosk, A. P.

K. L. van der Molen, R. W. Tjerkstra, A. P. Mosk, and A. Lagendijk, “Spatial extent of random laser modes,” Phys. Rev. Lett. 98(14), 143901 (2007).
[Crossref] [PubMed]

Mujumdar, S.

G. D. Dice, S. Mujumdar, and A. Y. Elezzabi, “Plasmonically enhanced diffusive and subdiffusive metal nanoparticle-dye random laser,” Appl. Phys. Lett. 86(13), 131105 (2005).
[Crossref]

Murai, S.

S. Murai, Y. Tokuda, K. Fujita, and K. Tanaka, “Tuning the wavelength of amplified spontaneous emission coupled to localized surface plasmon,” Appl. Phys. Lett. 101(3), 031117 (2012).
[Crossref]

X. Meng, K. Fujita, S. Murai, T. Matoba, and K. Tanaka, “Plasmonically controlled lasing resonance with metallic-dielectric core-shell nanoparticles,” Nano Lett. 11(3), 1374–1378 (2011).
[Crossref] [PubMed]

X. Meng, K. Fujita, S. Murai, and K. Tanaka, “Coherent random lasers in weakly scattering polymer films containing silver nanoparticles,” Phys. Rev. A 79(5), 053817 (2009).
[Crossref]

X. Meng, K. Fujita, Y. Zong, S. Murai, and K. Tanaka, “Random lasers with coherent feedback from highly transparent polymer films embedded with silver nanoparticles,” Appl. Phys. Lett. 92(20), 201112 (2008).
[Crossref]

Niedereichholz, T.

E. Dulkeith, A. C. Morteani, T. Niedereichholz, T. A. Klar, J. Feldmann, S. A. Levi, F. C. J. M. van Veggel, D. N. Reinhoudt, M. Möller, and D. I. Gittins, “Fluorescence quenching of dye molecules near gold nanoparticles: radiative and nonradiative effects,” Phys. Rev. Lett. 89(20), 203002 (2002).
[Crossref] [PubMed]

Olson, L. P.

A. Smuk, E. Lazaro, L. P. Olson, and N. M. Lawandy, “Random laser action in bovine semen,” Opt. Commun. 284(5), 1257–1258 (2011).
[Crossref]

Orrit, M.

S. Khatua, P. M. R. Paulo, H. Yuan, A. Gupta, P. Zijlstra, and M. Orrit, “Resonant plasmonic enhancement of single-molecule fluorescence by individual gold nanorods,” ACS Nano 8(5), 4440–4449 (2014).
[Crossref] [PubMed]

Pang, Z.

T. Zhai, X. Zhang, Z. Pang, X. Su, H. Liu, S. Feng, and L. Wang, “Random laser based on waveguided plasmonic gain channels,” Nano Lett. 11(10), 4295–4298 (2011).
[Crossref] [PubMed]

Paulo, P. M. R.

S. Khatua, P. M. R. Paulo, H. Yuan, A. Gupta, P. Zijlstra, and M. Orrit, “Resonant plasmonic enhancement of single-molecule fluorescence by individual gold nanorods,” ACS Nano 8(5), 4440–4449 (2014).
[Crossref] [PubMed]

Perassi, E. M.

E. M. Perassi, C. Hrelescu, A. Wisnet, M. Döblinger, C. Scheu, F. Jäckel, E. A. Coronado, and J. Feldmann, “Quantitative understanding of the optical properties of a single, complex-shaped gold nanoparticle from experiment and theory,” ACS Nano 8(5), 4395–4402 (2014).
[Crossref] [PubMed]

Polson, R. C.

R. C. Polson and Z. V. Vardeny, “Random lasing in human tissues,” Appl. Phys. Lett. 85(7), 1289–1291 (2004).
[Crossref]

Popov, O.

O. Popov, A. Zilbershtein, and D. Davidov, “Random lasing from dye-gold nanoparticles in polymer films: Enhanced gain at the surface-plasmon-resonance wavelength,” Appl. Phys. Lett. 89(19), 191116 (2006).
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Raikh, M. E.

V. M. Apalkov, M. E. Raikh, and B. Shapiro, “Random resonators and prelocalized modes in disordered dielectric films,” Phys. Rev. Lett. 89(1), 016802 (2002).
[Crossref] [PubMed]

Ramalingam, A.

G. Somasundaram and A. Ramalingam, “Gain studies of Rhodamine 6G dye doped polymer laser,” J. Photochem. Photobiol. Chem. 125(1-3), 93–98 (1999).
[Crossref]

Reinhoudt, D. N.

E. Dulkeith, A. C. Morteani, T. Niedereichholz, T. A. Klar, J. Feldmann, S. A. Levi, F. C. J. M. van Veggel, D. N. Reinhoudt, M. Möller, and D. I. Gittins, “Fluorescence quenching of dye molecules near gold nanoparticles: radiative and nonradiative effects,” Phys. Rev. Lett. 89(20), 203002 (2002).
[Crossref] [PubMed]

Rogach, A. L.

C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, G. Laurent, L. Douillard, and F. Charra, “Selective excitation of individual plasmonic hotspots at the tips of single gold nanostars,” Nano Lett. 11(2), 402–407 (2011).
[Crossref] [PubMed]

C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, and J. Feldmann, “Single gold nanostars enhance Raman scattering,” Appl. Phys. Lett. 94(15), 153113 (2009).
[Crossref]

Rotter, S.

H. E. Türeci, L. Ge, S. Rotter, and A. D. Stone, “Strong interactions in multimode random lasers,” Science 320(5876), 643–646 (2008).
[Crossref] [PubMed]

Sau, T. K.

C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, G. Laurent, L. Douillard, and F. Charra, “Selective excitation of individual plasmonic hotspots at the tips of single gold nanostars,” Nano Lett. 11(2), 402–407 (2011).
[Crossref] [PubMed]

C. Hrelescu, T. K. Sau, A. L. Rogach, F. Jäckel, and J. Feldmann, “Single gold nanostars enhance Raman scattering,” Appl. Phys. Lett. 94(15), 153113 (2009).
[Crossref]

Sauvain, E.

N. M. Lawandy, R. M. Balachandran, A. S. L. Gomes, and E. Sauvain, “Laser action in strongly scattering media,” Nature 368(6470), 436–438 (1994).
[Crossref]

Scheu, C.

E. M. Perassi, C. Hrelescu, A. Wisnet, M. Döblinger, C. Scheu, F. Jäckel, E. A. Coronado, and J. Feldmann, “Quantitative understanding of the optical properties of a single, complex-shaped gold nanoparticle from experiment and theory,” ACS Nano 8(5), 4395–4402 (2014).
[Crossref] [PubMed]

Sebbah, P.

C. Vanneste, P. Sebbah, and H. Cao, “Lasing with resonant feedback in weakly scattering random systems,” Phys. Rev. Lett. 98(14), 143902 (2007).
[Crossref] [PubMed]

Seelig, E. W.

H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, “Random laser action in semiconductor powder,” Phys. Rev. Lett. 82(11), 2278–2281 (1999).
[Crossref]

Shaklee, K. L.

K. L. Shaklee and R. F. Leheny, “Direct determination of optical gain in semiconductor crystals,” Appl. Phys. Lett. 18(11), 475–477 (1971).
[Crossref]

Shalaev, V. M.

X. Meng, A. V. Kildishev, K. Fujita, K. Tanaka, and V. M. Shalaev, “Wavelength-tunable spasing in the visible,” Nano Lett. 13(9), 4106–4112 (2013).
[Crossref] [PubMed]

Q. Song, S. Xiao, Z. Xu, J. Liu, X. Sun, V. Drachev, V. M. Shalaev, O. Akkus, and Y. L. Kim, “Random lasing in bone tissue,” Opt. Lett. 35(9), 1425–1427 (2010).
[Crossref] [PubMed]

Shapiro, B.

V. M. Apalkov, M. E. Raikh, and B. Shapiro, “Random resonators and prelocalized modes in disordered dielectric films,” Phys. Rev. Lett. 89(1), 016802 (2002).
[Crossref] [PubMed]

Smuk, A.

A. Smuk, E. Lazaro, L. P. Olson, and N. M. Lawandy, “Random laser action in bovine semen,” Opt. Commun. 284(5), 1257–1258 (2011).
[Crossref]

Somasundaram, G.

G. Somasundaram and A. Ramalingam, “Gain studies of Rhodamine 6G dye doped polymer laser,” J. Photochem. Photobiol. Chem. 125(1-3), 93–98 (1999).
[Crossref]

Song, Q.

Soukoulis, C. M.

X. Jiang and C. M. Soukoulis, “Time dependent theory for random lasers,” Phys. Rev. Lett. 85(1), 70–73 (2000).
[Crossref] [PubMed]

Stavrinou, P. N.

S. Kéna-Cohen, P. N. Stavrinou, D. D. C. Bradley, and S. A. Maier, “Random lasing in low molecular weight organic thin films,” Appl. Phys. Lett. 99(4), 041114 (2011).
[Crossref]

Stone, A. D.

H. E. Türeci, L. Ge, S. Rotter, and A. D. Stone, “Strong interactions in multimode random lasers,” Science 320(5876), 643–646 (2008).
[Crossref] [PubMed]

Stumpe, J.

E. Heydari, R. Flehr, and J. Stumpe, “Influence of spacer layer on enhancement of nanoplasmon-assisted random lasing,” Appl. Phys. Lett. 102(13), 133110 (2013).
[Crossref]

Su, X.

T. Zhai, X. Zhang, Z. Pang, X. Su, H. Liu, S. Feng, and L. Wang, “Random laser based on waveguided plasmonic gain channels,” Nano Lett. 11(10), 4295–4298 (2011).
[Crossref] [PubMed]

Sun, X.

Tanaka, K.

X. Meng, A. V. Kildishev, K. Fujita, K. Tanaka, and V. M. Shalaev, “Wavelength-tunable spasing in the visible,” Nano Lett. 13(9), 4106–4112 (2013).
[Crossref] [PubMed]

S. Murai, Y. Tokuda, K. Fujita, and K. Tanaka, “Tuning the wavelength of amplified spontaneous emission coupled to localized surface plasmon,” Appl. Phys. Lett. 101(3), 031117 (2012).
[Crossref]

X. Meng, K. Fujita, S. Murai, T. Matoba, and K. Tanaka, “Plasmonically controlled lasing resonance with metallic-dielectric core-shell nanoparticles,” Nano Lett. 11(3), 1374–1378 (2011).
[Crossref] [PubMed]

X. Meng, K. Fujita, S. Murai, and K. Tanaka, “Coherent random lasers in weakly scattering polymer films containing silver nanoparticles,” Phys. Rev. A 79(5), 053817 (2009).
[Crossref]

X. Meng, K. Fujita, Y. Zong, S. Murai, and K. Tanaka, “Random lasers with coherent feedback from highly transparent polymer films embedded with silver nanoparticles,” Appl. Phys. Lett. 92(20), 201112 (2008).
[Crossref]

Tjerkstra, R. W.

K. L. van der Molen, R. W. Tjerkstra, A. P. Mosk, and A. Lagendijk, “Spatial extent of random laser modes,” Phys. Rev. Lett. 98(14), 143901 (2007).
[Crossref] [PubMed]

Tokuda, Y.

S. Murai, Y. Tokuda, K. Fujita, and K. Tanaka, “Tuning the wavelength of amplified spontaneous emission coupled to localized surface plasmon,” Appl. Phys. Lett. 101(3), 031117 (2012).
[Crossref]

Türeci, H. E.

H. E. Türeci, L. Ge, S. Rotter, and A. D. Stone, “Strong interactions in multimode random lasers,” Science 320(5876), 643–646 (2008).
[Crossref] [PubMed]

van der Molen, K. L.

K. L. van der Molen, R. W. Tjerkstra, A. P. Mosk, and A. Lagendijk, “Spatial extent of random laser modes,” Phys. Rev. Lett. 98(14), 143901 (2007).
[Crossref] [PubMed]

van Veggel, F. C. J. M.

E. Dulkeith, A. C. Morteani, T. Niedereichholz, T. A. Klar, J. Feldmann, S. A. Levi, F. C. J. M. van Veggel, D. N. Reinhoudt, M. Möller, and D. I. Gittins, “Fluorescence quenching of dye molecules near gold nanoparticles: radiative and nonradiative effects,” Phys. Rev. Lett. 89(20), 203002 (2002).
[Crossref] [PubMed]

Vanneste, C.

C. Vanneste, P. Sebbah, and H. Cao, “Lasing with resonant feedback in weakly scattering random systems,” Phys. Rev. Lett. 98(14), 143902 (2007).
[Crossref] [PubMed]

Vardeny, Z. V.

R. C. Polson and Z. V. Vardeny, “Random lasing in human tissues,” Appl. Phys. Lett. 85(7), 1289–1291 (2004).
[Crossref]

S. V. Frolov, Z. V. Vardeny, K. Yoshino, A. Zakhidov, and R. H. Baughman, “Stimulated emission in high-gain organic media,” Phys. Rev. B 59(8), R5284–R5287 (1999).
[Crossref]

Wang, L.

T. Zhai, X. Zhang, Z. Pang, X. Su, H. Liu, S. Feng, and L. Wang, “Random laser based on waveguided plasmonic gain channels,” Nano Lett. 11(10), 4295–4298 (2011).
[Crossref] [PubMed]

Wang, Q. H.

H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, “Random laser action in semiconductor powder,” Phys. Rev. Lett. 82(11), 2278–2281 (1999).
[Crossref]

Wiersma, D. S.

D. S. Wiersma, “The physics and applications of random lasers,” Nat. Phys. 4(5), 359–367 (2008).
[Crossref]

S. Gottardo, S. Cavalieri, O. Yaroshchuk, and D. S. Wiersma, “Quasi-two-dimensional diffusive random laser action,” Phys. Rev. Lett. 93(26), 263901 (2004).
[Crossref] [PubMed]

Wisnet, A.

E. M. Perassi, C. Hrelescu, A. Wisnet, M. Döblinger, C. Scheu, F. Jäckel, E. A. Coronado, and J. Feldmann, “Quantitative understanding of the optical properties of a single, complex-shaped gold nanoparticle from experiment and theory,” ACS Nano 8(5), 4395–4402 (2014).
[Crossref] [PubMed]

Xiao, S.

Xu, Z.

Yaroshchuk, O.

S. Gottardo, S. Cavalieri, O. Yaroshchuk, and D. S. Wiersma, “Quasi-two-dimensional diffusive random laser action,” Phys. Rev. Lett. 93(26), 263901 (2004).
[Crossref] [PubMed]

Yoshino, K.

S. V. Frolov, Z. V. Vardeny, K. Yoshino, A. Zakhidov, and R. H. Baughman, “Stimulated emission in high-gain organic media,” Phys. Rev. B 59(8), R5284–R5287 (1999).
[Crossref]

Yuan, H.

S. Khatua, P. M. R. Paulo, H. Yuan, A. Gupta, P. Zijlstra, and M. Orrit, “Resonant plasmonic enhancement of single-molecule fluorescence by individual gold nanorods,” ACS Nano 8(5), 4440–4449 (2014).
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Figures (3)

Fig. 1
Fig. 1 (a) Electron micrographs present gold NPs of different shapes. (b) Extinction spectra of the differently shaped NPs in aqueous solution. The NP concentrations were adjusted so that the optical densities were the same at 590 nm. (c) Extinction and emission spectra of a thin film containing R6G as gain medium. The vertical green line indicates the wavelength of excitation. (d) Illustration of the excitation stripe and the detection of emission from the edge of the thin film.
Fig. 2
Fig. 2 Emission characteristics of thin films containing R6G and gold NPs of different shapes. For each film, spectra were recorded at the same excitation fluence of 1.2 mJ/cm2 from various regions shifted along the edge of the film. (a) The reference film without NPs shows ASE in some cases. (b) Films with nanospheres do not even show ASE at this fluence. (c) Films containing nanorods show ASE and occasionally spectrally narrow peaks. (d) Films comprising nanostars expose lasing with high emission intensities and spectrally narrow peaks in several cases.
Fig. 3
Fig. 3 Emission of the random laser containing nanostars for increasing excitation fluences. (a) Spectrally narrow peaks emerge above a threshold fluence, indicating the onset of coherent random lasing. (b) For higher fluences, more lasing modes arise. Inset: Nonlinear behavior of the intensity of the indicated peaks (1, 2, 3) with increasing fluence. Note that peak 1 is the same in (a) and (b).

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