UV-enhanced photorefractive sensitivity in Mn,Ce:LiNbO3

Ki-Soo Lim; Bok-Mi Kim; Joong-Pyo Kim; Lambertus Hesselink; Ratnakar R. Neurgaonkar

doi:10.1117/12.404793

19 October 2000 UV-enhanced photorefractive sensitivity in Mn,Ce:LiNbO3

Ki-Soo Lim, Bok-Mi Kim, Joong-Pyo Kim, Lambertus Hesselink, Ratnakar R. Neurgaonkar

Proceedings Volume 4110, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VI; (2000) https://doi.org/10.1117/12.404793
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

We report enhanced photorefractive sensitivity in Mn, Ce doped LiNbO₃ at 514 nm and 633 nm under ultraviolet illumination at 365 nm. Without ultraviolet sensitization, the crystal showed very weak diffraction efficiency and self-erased behavior. The accumulation of charged states by ultraviolet light is observed even after the hologram is erased because of the asymmetric process of recording and reading. The concentrations of doped ions and the intensity ratio of ultraviolet and recording light are important factors to improve sensitivity in this material.

Citation Download Citation

Ki-Soo Lim, Bok-Mi Kim, Joong-Pyo Kim, Lambertus Hesselink, and Ratnakar R. Neurgaonkar "UV-enhanced photorefractive sensitivity in Mn,Ce:LiNbO3", Proc. SPIE 4110, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VI, (19 October 2000); https://doi.org/10.1117/12.404793

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