Serial wavelength division 1 GHz line-scan microscopic imaging

被引：22
|
作者：
Xing, Fangjian [1 ,2 ]
Chen, Hongwei [1 ,2 ]
Lei, Cheng [1 ,2 ]
Weng, Zhiliang [1 ,2 ]
Chen, Minghua [1 ,2 ]
Yang, Sigang [1 ,2 ]
Xie, Shizhong [1 ,2 ]
机构：
[1] Tsinghua Natl Lab Informat Sci & Technol TNLiSt, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
来源：
PHOTONICS RESEARCH | 2014年 / 2卷 / 04期
关键词：
STRETCH CONFOCAL MICROSCOPY; DISPERSION LASER SCANNER; SINGLE-MOLECULE; TIME;
D O I：
10.1364/PRJ.2.000B31
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A serial line scan microscopic imaging system with 1 GHz scan rate is proposed and demonstrated. This method is based on optical time-stretch in dispersive fiber to realize superfast scan imaging. Furthermore, a wavelength division technique is utilized to overcome the trade-off between high frame rate and spatial resolution caused by dispersion-induced pulse overlap. Every single frame is carved into two channels by optical filters and is detected in different wavelength bands separately. Then, both channels are combined to reconstruct the whole frame. By this method, an imaging system with spatial resolution of 28 mu m at line scan rate of 1 GHz with chromatic dispersion of 1377 ps/nm is realized. It has the potential to capture fast, nonrepetitive transient phenomena with a timescale of less than one nanosecond. (C) 2014 Chinese Laser Press
引用
收藏
页码：B31 / B34
页数：4
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