Ultrafast single-pixel imaging with high axial resolution by comprehensive utilization of the time-frequency-phase information of a mode-locked laser

被引：4

作者：

Huang, Jingsheng ^{[1
]}

Wang, Jindong ^{[1
]}

Cao, Yulong ^{[1
]}

Yang, Zhen ^{[1
]}

Liu, A., I ^{[1
]}

Wu, Qiang ^{[1
]}

Chang, Zhenghu ^{[1
]}

LI, Juan ^{[1
]}

Yin, Guolu ^{[1
]}

Zhu, Tao ^{[1
]}

机构：

[1] Chongqing Univ, Key Lab Optoelect Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China

来源：

OPTICS AND LASERS IN ENGINEERING | 2023年 / 166卷

基金：

中国国家自然科学基金;

关键词：

Ultrafast imaging; Single-pixel imaging; Time-stretch; Single-shot; 3D imaging; STRETCH;

D O I：

10.1016/j.optlaseng.2023.107586

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An ultrafast single-pixel imaging scheme is proposed to improve the resolution in the vertical direction. A whole row of horizontal and vertical information for a reflecting sample is encoded onto the time, frequency and phase of a space-dispersed ultrafast mode-locked beam. The single-shot spectrum is decoded to reconstruct three-dimensional (3D) imaging by comprehensively extracting the time-frequency-phase information of the in-terference spectrum from a mode-locked pulse. In the proposed method, the free spectral range (FSR) and phase information are extracted based on Fourier forward and inverse transform from the temporal interferogram. With the help of comprehensive utilization of time-frequency-phase information and time-stretch technique, the imag-ing system with axial resolution higher than 100 nm, depth measurement range greater than 7.5 mm and 50 MHz line-scan frame rate are experimentally demonstrated.

引用

页数：6

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