Compensation of spatial dispersion of an acousto-optic deflector with a special Keplerian telescope

被引：18

作者：

Hu, Qinglei ^{[1
,2
]}

Zhou, Zhenqiao ^{[1
,2
]}

Lv, Xiaohua ^{[1
,2
]}

Zeng, Shaoqun ^{[1
,2
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Britton Chance Ctr Biomed Photon, 1037 Luoyu Rd, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Dept Biomed Engn, Key Lab Biomed Photon, Minist Educ, 1037 Luoyu Rd, Wuhan 430074, Peoples R China

来源：

OPTICS LETTERS | 2016年 / 41卷 / 02期

基金：

中国国家自然科学基金;

关键词：

TEMPORAL DISPERSION; OPTICAL TWEEZERS; MICROSCOPY; FLUORESCENCE;

D O I：

10.1364/OL.41.000207

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Compensation of spatial dispersion caused by the acoustooptic deflector (AOD) when using a femtosecond laser is difficult across the whole scanning range of the system, and this is a significant impediment to its use. In conventional methods, the dispersion of the AOD was compensated only when it was at a particular position, while at other positions, the quality of the light beam was reduced. We developed a novel method for compensating the spatial dispersion within the entire scanning range using a special Keplerian telescope. Our experimental results show that the residual dispersion of the AOD is compensated sufficiently, and the focal spots of the laser reach the diffraction limit within a 40-MHz ultrasound bandwidth. (C) 2016 Optical Society of America

引用

页码：207 / 210

页数：4

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