铌酸锂晶体的光折变效应

人工晶体学报 ›› 2022, Vol. 51 ›› Issue (9-10): 1626-1642.

铌酸锂晶体的光折变效应

郑大怀, 张宇琦, 王烁琳, 刘宏德, 刘士国, 孔勇发, 薄方, 许京军

南开大学物理科学学院&泰达应用物理研究院,弱光非线性光子学教育部重点实验室,天津 300457

收稿日期:2022-08-16 出版日期:2022-10-15 发布日期:2022-11-02
通信作者: 孔勇发,博士,教授。E-mail:kongyf@nankai.edu.cn
薄方,博士,教授。E-mail:bofang@nankai.edu.cn
许京军,博士,教授。E-mail:jjxu@nankai.edu.cn
作者简介:郑大怀(1987—),男,河南省人,博士,高级工程师。E-mail:dhzheng@nankai.edu.cn。郑大怀,南开大学物理科学学院高级工程师,硕士生导师。长期从事人工晶体生长、铌酸锂晶体光折变及其实时动态全息三维显示等研究工作。主持国家自然科学青年基金、天津市自然科学青年基金,参与国家自然科学基金重点项目、面上项目。
孔勇发,南开大学物理科学学院教授,博士生导师,教育部“跨世纪优秀人才”,全国高校实验物理教学研究会副理事长,《激光技术》《人工晶体学报》编委。主要研究领域为信息光子学材料及器件,在铌酸锂晶体的缺陷结构及性能调控方面取得了系列的研究成果,在Adv Mater、Appl Phys Lett、Opt Lett等刊物发表论文150余篇,授权发明专利26项,出版专著1部。主持了“863”攻关、国家自然科学基金重点项目、国家国际科技合作专项、天津市重大科技攻关等课题的研究工作。曾获国家自然科学奖二等奖、天津市自然科学奖一等奖、天津市技术发明奖二等奖、天津市科技进步奖一等奖。
薄方,南开大学物理科学学院教授,博士生导师。Chin Opt Lett杂志编委,Chin Phys Lett等4刊青年编委。主要从事铌酸锂微纳光子学研究,实现微腔、波导、耦合器等高性能铌酸锂薄膜器件制备,并在其中实现了电光、倍频、和频等非线性光学效应,以及激光出射和光放大。在Phys Rev Lett、Adv Mater等杂志上发表论文60余篇,SCI引用1 100余次。合著英文专著章节1章。主持重大项目(课题)3项,国家自然科学基金项目4项,其他项目6 项;参与国家自然科学基金重点项目等10余项科研项目。
许京军,南开大学物理科学学院教授,博士生导师,国家杰出青年科学基金获得者。长期从事非线性光子学及其应用的研究工作,研究领域涉及量子相干系综体系制备及其非线性光子学、共振耦合增强非线性光学效应以及新式光控光技术及其应用。近年来,其研究组在Science、Nat Mater、Nat Commun、Phys Rev Lett等杂志上发表论文300余篇。曾获国家自然科学奖二等奖、青年科学家奖、天津市自然科学奖一等奖等奖。
基金资助:
国家重点研发计划(2019YFA0705000);国家自然科学基金(12034010,12134007);天津市自然科学基金(21JCZDJC00300, 21JCQNJC00250)

Photorefractive Effect of Lithium Niobate Crystals

ZHENG Dahuai, ZHANG Yuqi, WANG Shuolin, LIU Hongde, LIU Shiguo, KONG Yongfa, BO Fang, XU Jingjun

Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, School of Physics & TEDA Institute of Applied Physics, Nankai University, Tianjin 300457

Received:2022-08-16 Online:2022-10-15 Published:2022-11-02

摘要/Abstract

摘要： 铌酸锂(LiNbO₃, LN)是一种多功能多用途的人工晶体,被称为“光学硅”。近期以铌酸锂薄膜(LNOI)为平台的集成光子学发展迅速,有将“光学硅”变为现实的趋势。高集成意味着高局域高光强密度,使铌酸锂晶体的光折变效应变得不容忽视。光折变效应是光致折射率变化的简称,是非线性光学的重要组成部分。本文回顾了铌酸锂晶体光折变效应的发现和机理、不同掺杂及掺杂组合对光折变效应的调控,重点介绍了铋镁双掺铌酸锂晶体的光折变性能及相关理论和实验结果,概述了铌酸锂光折变波导和孤子,及基于LNOI的集成光子学器件中的光折变效应,并对未来的研究趋势进行了展望。期待我国发挥铌酸锂光折变研究及LNOI产业化的优势,在光子学芯片的竞争中占据主导地位。

关键词: 铌酸锂晶体, 光折变效应, 机制, 掺杂, 全息存储及显示, 集成光子学

Abstract: Lithium niobite (LiNbO₃, LN) is a kind of multi-functional artificial crystal, which is called “optical silicon”. Recently, the rapid development of integrated photonics based on LN film (LNOI) has a great tendency to turn “optical silicon” into reality. High integration means high local intensity density, so the photorefractive effect of LN crystal can’t be ignored any more. Photorefractive effect, short for photoinduced refractive index change, which is an important part of nonlinear optics. In this paper, the discovery and mechanism of photorefractive effect, the regulation of photorefractive effect by different dopants and doping combinations are reviewed. The photorefractive characteristics of bismuth-magnesium double-doped LN crystal, related theoretical and experimental results are mainly introduced. The characteristics and applications of LN photorefractive waveguide, optical soliton, and the photorefractive effect in LNOI-based integrated photonics devices are summarized. The future research trends are also prospected. It is expected that China will make full use of the advantages of LN photorefraction research and LNOI industrialization and occupy the advantage in the competition of photonics chips.

Key words: lithium niobate crystal, photorefractive effect, mechanism, doping, holographic storage and display, integrated photonics

中图分类号:

O734

郑大怀, 张宇琦, 王烁琳, 刘宏德, 刘士国, 孔勇发, 薄方, 许京军. 铌酸锂晶体的光折变效应[J]. 人工晶体学报, 2022, 51(9-10): 1626-1642.

ZHENG Dahuai, ZHANG Yuqi, WANG Shuolin, LIU Hongde, LIU Shiguo, KONG Yongfa, BO Fang, XU Jingjun. Photorefractive Effect of Lithium Niobate Crystals[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2022, 51(9-10): 1626-1642.

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