Filters with random transmittance for improving resolution in filter-array-based spectrometers | Zendy

J. Oliver | Zendy; Woong-Bi Lee | Zendy; Heung-No Lee | Zendy

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Filters with random transmittance for improving resolution in filter-array-based spectrometers

Author(s) -

J. Oliver,

Woong-Bi Lee,

Heung-No Lee

Publication year - 2013

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.003969

Subject(s) - transmittance , spectrometer , optics , optical filter , filter (signal processing) , signal (programming language) , computer science , resolution (logic) , materials science , signal processing , physics , computer vision , artificial intelligence , digital signal processing , computer hardware , programming language

In this paper, we introduce a method for improving the resolution of miniature spectrometers. Our method is based on using filters with random transmittance. Such filters sense fine details of an input signal spectrum, which, when combined with a signal processing algorithm, aid in improving resolution. We also propose an approach for designing filters with random transmittance using optical thin-film technology. We demonstrate that the improvement in resolution is 7-fold when using the filters with random transmittance over what was achieved in our previous work.

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