Single-pixel infrared and visible microscope

被引:393
作者
Radwell, Neal [1 ]
Mitchell, Kevin J. [1 ]
Gibson, Graham M. [1 ]
Edgar, Matthew P. [1 ]
Bowman, Richard [2 ]
Padgett, Miles J. [1 ]
机构
[1] Univ Glasgow, Sch Phys & Astron, SUPA, Glasgow G12 8QQ, Lanark, Scotland
[2] Univ Cambridge, Dept Phys, Cambridge CB3 0HE, England
基金
英国工程与自然科学研究理事会; 欧洲研究理事会;
关键词
Computational imaging; Microscopy; Multispectral and hyperspectral imaging;
D O I
10.1364/OPTICA.1.000285
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Microscopy is an essential tool in a huge range of research areas. Until now, microscopy has been largely restricted to imaging in the visible region of the electromagnetic spectrum. Here we present a microscope system that uses single-pixel imaging techniques to produce images simultaneously in the visible and shortwave infrared. We apply our microscope to the inspection of various objects, including a silicon CMOS sensor, highlighting the complementarity of the visible and shortwave infrared wavebands. The system is capable of producing images with resolutions between 32 x 32 and 128 x 128 pixels at corresponding frame rates between 10 and 0.6 Hz. We introduce a compressive technique that does not require postprocessing, resulting in a predicted frame rate increase by a factor 8 from a compressive ratio of 12.5% with only 28% relative error. (C) 2014 Optical Society of America
引用
收藏
页码:285 / 289
页数:5
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