Abstract

A Tm3+/Yb3+/Bi3+ co-doped GdVO4 phosphor sample has been synthesized using a high-temperature solid-state reaction technique. The X-ray diffraction patterns reveal pure phase formation and crystalline behavior of the synthesized samples. Intense blue and NIR upconversion emissions have been observed upon excitation with a 980 nm diode laser. It is found that the addition of the Bi3+ ion to the phosphor reduces the intensity of blue emission and enhances the NIR emission intensity to the extent that NIR emission is nearly monochromatic [(INIR/IBlue)14]. This ratio is further improved up to 70 times (almost monochromatic) by varying the pump power of the diode laser. Thus, this material can be used as a cheap source of monochromatic NIR emission at 800 nm for bioimaging.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Enhancing upconverted white light in Tm3+/Yb3+/Ho3+-doped GdVO4 nanocrystals via incorporation of Li+ ions

Venkataramanan Mahalingam, Rafik Naccache, Fiorenzo Vetrone, and John A. Capobianco
Opt. Express 20(1) 111-119 (2012)

Laser power density dependent energy transfer between Tm3+ and Tb3+: tunable upconversion emissions in NaYF4:Tm3+,Tb3+,Yb3+ microcrystals

Xiaojie Xue, Makhin Thitsa, Tonglei Cheng, Weiqing Gao, Dinghuan Deng, Takenobu Suzuki, and Yasutake Ohishi
Opt. Express 24(23) 26307-26321 (2016)

Enhanced broadband 1.8 μm emission in Bi/Tm3+ co-doped fluorogermanate glasses

W. C. Wang, J. Yuan, D. D. Chen, Q. Qian, and Q. Y. Zhang
Opt. Mater. Express 5(6) 1250-1258 (2015)

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

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