Fractional second-harmonic Talbot effect

被引：18
作者：
Chen, Zhenhua [1 ]
Liu, Dongmei [1 ]
Zhang, Yong [1 ]
Wen, Jianming [1 ,2 ]
Zhu, S. N. [1 ]
Xiao, Min [1 ,3 ]
机构：
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Sch Phys, Sch Engn & Appl Sci, Nanjing 210093, Jiangsu, Peoples R China
[2] Univ Calgary, Inst Quantum Informat Sci, Calgary, AB T2N 1N4, Canada
[3] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA
来源：
OPTICS LETTERS | 2012年 / 37卷 / 04期
基金：
加拿大自然科学与工程研究理事会; 中国国家自然科学基金;
关键词：
ARRAY ILLUMINATOR; PLANES;
D O I：
10.1364/OL.37.000689
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate the fractional second-harmonic (SH) Talbot effect in a hexagonally poled LiTaO3 crystal. We carefully record the SH Talbot images at 1/2, 1/3, and 1/4 Talbot lengths, which are well matched with the simulated images by using the modified Rayleigh-Sommerfeld diffraction formula. A simplified model with a hexagonal array is adopted in the simulations. Also, we use a modified reciprocal vector theory to analytically explain the evolution of the SH array at fractional Talbot lengths. Our results show that the images are sensitive to the duty circle and the background of the array. (C) 2012 Optical Society of America
引用
收藏
页码：689 / 691
页数：3
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