Abstract

We experimentally demonstrate tunable, phase-matched difference frequency generation covering the spectral region below 15 THz using 4H-SiC as a nonlinear crystal. This material combines a non-centrosymmetric lattice and strong birefringence with broadband transparency at low optical frequencies. Thorough refractive index measurements in the terahertz spectral range allow us to calculate phase-matching conditions for any near-infrared pump laser source. 4H-SiC is also exploited as a detector crystal for electro-optic sampling. The results allow us to estimate the effective second-order nonlinear coefficient.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Čherenkov phase-matched monochromatic THz-wave generation using difference frequency generation with a lithium niobate crystal

Koji Suizu, Takayuki Shibuya, Takuya Akiba, Toshihiro Tutui, Chiko Otani, and Kodo Kawase
Opt. Express 16(10) 7493-7498 (2008)

Tunable narrow band difference frequency THz wave generation in DAST via dual seed PPLN OPG

Brian Dolasinski, Peter E. Powers, Joseph W. Haus, and Adam Cooney
Opt. Express 23(3) 3669-3680 (2015)

Elliptically polarized THz-wave generation from GaP-THz planar waveguide via collinear phase-matched difference frequency mixing

Kyosuke Saito, Tadao Tanabe, and Yutaka Oyama
Opt. Express 20(23) 26082-26088 (2012)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription