Abstract

The resolution of a miniature spectrometer with a multichannel detector is limited by its throughput. A subpixel deconvolution method is proposed to enhance resolution without physically reducing the throughput. The method introduces subpixel reconstruction to overcome undersampling during deconvolution processing. The experimental result has shown a 36.6% reduction in FWHM of spectral lines, indicating the effectiveness of the method.

© 2007 Optical Society of America

Miniaturized cost-effective broadband spectrometer employing a deconvolution reconstruction algorithm for resolution enhancement

Artem Shcheglov, Yunfeng Nie, Colas Schretter, Rob Heeman, Arthur van der Put, Willem Hoving, Hugo Thienpont, Peter Schelkens, and Heidi Ottevaere
Opt. Express 30(7) 11459-11471 (2022)

Dispersion multiplexing with broadband filtering for miniature spectrometers

E. C. Cull, M. E. Gehm, D. J. Brady, C. R. Hsieh, O. Momtahan, and A. Adibi
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Resolution-enhanced subpixel phase retrieval method

Xiaojun-Hu , Shengyi-Li , and Yulie-Wu
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Miniaturization of holographic Fourier-transform spectrometers

Nikolay I. Agladze and Albert J. Sievers
Appl. Opt. 43(36) 6568-6579 (2004)

Pseudorandom phase masks for superresolution imaging from subpixel shifting

Amit Ashok and Mark A. Neifeld
Appl. Opt. 46(12) 2256-2268 (2007)