Single-pixel infrared and visible microscope

Radwell, N., Mitchell, K. J., Gibson, G. M. , Edgar, M. P., Bowman, R. and Padgett, M. J. (2014) Single-pixel infrared and visible microscope. Optica, 1(5), pp. 285-289. (doi: 10.1364/OPTICA.1.000285)

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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 32×32 and 128×128 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.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Edgar, Dr Matthew and Gibson, Dr Graham and Bowman, Dr Richard and Radwell, Dr Neal and Padgett, Professor Miles
Authors: Radwell, N., Mitchell, K. J., Gibson, G. M., Edgar, M. P., Bowman, R., and Padgett, M. J.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optica
Publisher:Optical Society of America
Copyright Holders:Copyright © 2014 Optical Society of America
First Published:First published in Optica 1(5):285-289
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher.

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
549871Challenges in Orbital Angular MomentumMiles PadgettEngineering & Physical Sciences Research Council (EPSRC)EP/I012451/1P&A - PHYSICS & ASTRONOMY