10微米厚的周期性极化铌酸锂（LiNbO₃）薄膜的二阶光学非线性

Second-order optical nonlinearity of 10-mum-thick periodically poled LiNbO(3) films.

作者信息

Radojevic A M, Levy M, Osgood R M, Jundt D H, Kumar A, Bakhru H

出版信息

Opt Lett. 2000 Jul 15;25(14):1034-6. doi: 10.1364/ol.25.001034.

DOI:10.1364/ol.25.001034

Abstract

We report on the fabrication and chic((2)) measurements of thin ~10-mum -thick films of periodically poled LiNbO(3), obtained by crystal ion slicing. The d(33) optical coefficient in the films is probed by sum-frequency generation with a short-pulse laser source at 1550 nm and compared with that of the bulk. Efficient, room-temperature TM(omega, m = 0)-to-TM(omega +omega, m = 0) mode conversion is obtained in the films. These measurements show that domain periodicity is preserved during ion implantation and that the thin films have bulklike nonlinearity and material dispersion.

摘要

我们报道了通过晶体离子切片获得的周期性极化铌酸锂（LiNbO₃）约10微米厚薄膜的制备及相关测量。利用1550纳米的短脉冲激光源通过和频产生来探测薄膜中的d(33)光学系数，并与块状材料的进行比较。在薄膜中实现了高效的室温下TM(ω, m = 0)到TM(ω + ω, m = 0)模式转换。这些测量表明在离子注入过程中畴周期性得以保留，并且薄膜具有类似块状材料的非线性和材料色散。