CLBO单晶生长及性能研究

人工晶体学报 ›› 2023, Vol. 52 ›› Issue (12): 2146-2150.

CLBO单晶生长及性能研究

石爽爽^1,2, 王国影^1,2, 肖亚波^1,2, 王海丽^1,2, 陈建荣^1,2

1.中材人工晶体研究院有限公司,北京 100018;
2.北京中材人工晶体研究院有限公司,北京 100018

收稿日期:2023-10-03 出版日期:2023-12-15 发布日期:2023-12-26
通信作者: 陈建荣,博士,教授级高工。E-mail:crystchen@163.com
作者简介:石爽爽(1993—),女,山东省人,博士,工程师。E-mail:582902330@qq.com

Growth and Properties of Large Size CLBO Single Crystal

SHI Shuangshuang^1,2, WANG Guoying^1,2, XIAO Yabo^1,2, WANG Haili^1,2, CHEN Jianrong^1,2

1. Sinoma Synthetic Crystal Co., Ltd., Beijing 100018, China;
2. Beijing Sinoma Synthetic Crystal Co., Ltd., Beijing 100018, China

Received:2023-10-03 Online:2023-12-15 Published:2023-12-26

摘要/Abstract

摘要： CsLiB₆O₁₀(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,210～1 800 nm的平均透过率超过90%,光学均匀性为3.8×10^-5,1 064 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。

关键词: CsLiB₆O₁₀, 非线性光学晶体, 顶部籽晶法, 透过率, 光学均匀性, 弱吸收

Abstract: CsLiB₆O₁₀(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 1 800 nm, optical uniformity result is 3.8×10^-5 and the weak absorption is 90×10^-6 cm^-1 at 1 064 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.

Key words: CsLiB₆O₁₀, nonlinear optical crystal, top seeded solution growth method, transmittance, optical uniformity, weak absorption

中图分类号:

O78
O734

石爽爽, 王国影, 肖亚波, 王海丽, 陈建荣. CLBO单晶生长及性能研究[J]. 人工晶体学报, 2023, 52(12): 2146-2150.

SHI Shuangshuang, WANG Guoying, XIAO Yabo, WANG Haili, CHEN Jianrong. Growth and Properties of Large Size CLBO Single Crystal[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2023, 52(12): 2146-2150.

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