2023
DOI: 10.1364/ao.481828
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Optical system design of a DMD–SHS combined modulation interference spectrometer

Abstract: Digital micromirror device (DMD) and spatial heterodyne spectroscopy (SHS) combined modulation interference spectroscopy (DMD–SHS) introduces a DMD for the secondary modulation of interferometric data to achieve a Hadamard transform. DMD–SHS can improve the performance index of the spectrometer in terms of the SNR, dynamic range, and spectral bandwidth, while retaining the advantages of a conventional SHS. The DMD–SHS optical system is more complex than a traditional SHS, which places more demands on the optic… Show more

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