摘要
CsLiB_(6)O_(10)(简称CLBO)是一种性能优良的紫外非线性光学晶体,特别适用于四倍频(266 nm)和五倍频(210 nm)的紫外大功率激光。本文采用顶部籽晶法成功生长出尺寸为120 mm×112 mm×62 mm的CLBO晶体,晶体外观完整,无开裂、散射等宏观缺陷。由该晶体切出五倍频CLBO晶体元件,对其进行了紫外-可见-近红外透过率、光学均匀性、弱吸收性能表征,结果显示,210~1800 nm的平均透过率超过90%,光学均匀性为3.8×10^(-5),1064 nm弱吸收为90×10^(-6)cm^(-1),表明该晶体紫外区透过率良好,光学均匀性高,弱吸收低,为后续相关激光应用研究奠定了基础。
CsLiB_(6)O_(10)(CLBO)is a high-performance nonlinear optical crystal,particularly suitable for high-power ultraviolet laser by fourth harmonic generation(FHG,266 nm)and fifth harmonic generation(FIHG,210 nm).A CLBO crystal with the size of 120 mm×112 mm×62 mm was successfully grown using top seeded solution growth(TSSG)method in this work.The grown CLBO crystal exhibits a complete appearance without macroscopic defects such as cracking and visible scattering particles.A CLBO FIHG crystal component was cut from this crystal,and its UV-visible-near infrared transmittance,optical uniformity and weak absorption properties were analyzed in detail.The results include that,the mean transmittance exceeds 90% from 210 nm to 1800 nm,optical uniformity result is 3.8×10^(-5) and the weak absorption is 90×10^(-6) cm^(-1) at 1064 nm.All of these results indicate that the as-grown CLBO crystal possesses good transmittance in the ultraviolet region,high optical uniformity and low weak absorption,laying the foundation for subsequent research on related applications.
作者
石爽爽
王国影
肖亚波
王海丽
陈建荣
SHI Shuangshuang;WANG Guoying;XIAO Yabo;WANG Haili;CHEN Jianrong(Sinoma Synthetic Crystal Co.,Ltd.,Beijing 100018,China;Beijing Sinoma Synthetic Crystal Co.,Ltd.,Beijing 100018,China)
出处
《人工晶体学报》
CAS
北大核心
2023年第12期2146-2150,共5页
Journal of Synthetic Crystals
