掺钇铝硼酸盐中高功率 266nm 紫外光的产生。

High-power 266 nm ultraviolet generation in yttrium aluminum borate.

机构信息

State Key Laboratory of Tribology, Center for Photonics and Electronics, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China.

出版信息

Opt Lett. 2011 Jul 15;36(14):2653-5. doi: 10.1364/OL.36.002653.

DOI:10.1364/OL.36.002653

PMID:21765498

Abstract

A yttrium aluminum borate [YAl(3)(BO(3))(4)] (YAB) crystal with UV cutoff wavelength of 165 nm is used as the nonlinear optical crystal for fourth harmonic generation. The fundamental frequency laser at 1064 nm from an Nd:YVO(4) master oscillator power amplifier laser was frequency doubled to 532 nm. Using the type I phase-matching YAB crystal, a 5.05 W average power 266 nm UV laser was obtained at the pulse repetition frequency of 65 kHz, corresponding to the conversion efficiency of 12.3% from 532 to 266 nm. The experimental results show great potential for the application of using YAB as a nonlinear optical crystal to get high-power fourth harmonic generation.

摘要

一种掺钕铝酸硼酸盐[YAl(3)(BO(3))(4)]（YAB）晶体，其紫外截止波长为 165nm，用作倍频产生 4 次谐波的非线性光学晶体。Nd:YVO(4)主振荡器功率放大器激光器的基频激光在 1064nm 处被二倍频至 532nm。利用Ⅰ型相位匹配 YAB 晶体，在脉冲重复频率为 65kHz 时获得了平均功率为 5.05W 的 266nm 紫外激光，532nm 到 266nm 的转换效率为 12.3%。实验结果表明，YAB 作为一种非线性光学晶体，用于获得高功率四倍频产生，具有很大的应用潜力。