Experimental demonstration of a three-dimensional lithium niobate nonlinear photonic crystal

被引：334

作者：

Wei, Dunzhao ^{[1
,2
,3
]}

Wang, Chaowei ^{[4
]}

Wang, Huijun ^{[1
,2
,3
]}

Hu, Xiaopeng ^{[1
,2
,3
]}

Wei, Dan ^{[1
,2
,3
]}

Fang, Xinyuan ^{[1
,2
,3
]}

Zhang, Yong ^{[1
,2
,3
]}

Wu, Dong ^{[4
]}

Hue, Yanlei ^{[4
]}

Lie, Jiawen ^{[4
]}

Zhu, Shining ^{[1
,2
,3
]}

Xiao, Min ^{[1
,2
,3
,5
]}

机构：

[1] Nanjing Univ, Coll Engn & Appl Sci, Natl Lab Solid State Microstruct, Nanjing, Jiangsu, Peoples R China

[2] Nanjing Univ, Sch Phys, Nanjing, Jiangsu, Peoples R China

[3] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing, Jiangsu, Peoples R China

[4] Univ Sci & Technol China, Dept Precis Machinery & Precis Instrumentat, CAS Key Lab Mech Behav & Design Mat, Hefei, Anhui, Peoples R China

[5] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA

来源：

NATURE PHOTONICS | 2018年 / 12卷 / 10期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

2ND-HARMONIC GENERATION; PHASE; LINBO3; LIGHT; BEAMS;

D O I：

10.1038/s41566-018-0240-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A nonlinear photonic crystal (NPC)(1) possesses space-dependent second-order nonlinear coefficients, which can effectively control nonlinear optical interactions through quasi-phase matching(2). Lithium niobate (LiNbO3) crystal is one of the most popular materials from which to fabricate NPC structures because of its excellent nonlinear optical properties(3-5). One- and two-dimensional LiNbO3 NPCs have been widely utilized in laser frequency conversion(6,7), spatial light modulation(8-12) and nonlinear optical imaging(13,14). However, limited by traditional poling methods, the experimental realization of three-dimensional (3D) NPCs remains one of the greatest challenges in the field of nonlinear optics(1,15). Here, we present an experimental demonstration of a 3D LiNbO3 NPC by using a femtosecond laser to selectively erase the nonlinear coefficients in a LiNbO3 crystal(16,17). The effective conversion efficiency is comparable to that of typical quasi-phase- matching processes. Such a 3D LiNbO3 NPC provides a promising platform for future nonlinear optical studies based on its unique ability to control nonlinear interacting waves in 3D configuration.

引用

页码：596 / +

页数：6