Ultrafast time-stretch microscopy based on dual-comb asynchronous optical sampling

被引：40

作者：

Dong, Xin ^{[1
]}

Zhou, Xi ^{[1
]}

Kang, Jiqiang ^{[2
]}

Chen, Liao ^{[1
]}

Lei, Zihui ^{[1
]}

Zhang, Chi ^{[1
]}

Wong, Kenneth K. Y. ^{[2
]}

Zhang, Xinliang ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China

[2] Univ Hong Kong, Dept Elect & Elect Engn, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R China

来源：

OPTICS LETTERS | 2018年 / 43卷 / 09期

基金：

中国国家自然科学基金;

关键词：

PERFORMANCE; SPECTROSCOPY;

D O I：

10.1364/OL.43.002118

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The ultrafast time-stretch microscopy based on a single-pixel detector has become a hotspot of the research, owing to its high sensitivity compared to those pixel sensors. However, gigahertz or tens of gigahertz acquisition bandwidth is required for this scheme, resulting in great expense for the whole imaging system and hindering its wide applications. In this Letter, a dual-comb asynchronous optical sampling is applied for the conventional time-stretch microscopy, whose ultrafast temporal axis is magnified by 9200 times. The acquisition bandwidth requirement is thus greatly relaxed, and 320 kHz bandwidth successfully resolves 2.3 mu m spatial resolution with tens of kilohertz frame rate. (C) 2018 Optical Society of America

引用

页码：2118 / 2121

页数：4

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