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Compressive Sensing Absorption Spectroscopy Based on Photoelastic Modulation and Single-Pixel Detection

Jing, Ning, Yu, Chen, Li, Kewu, Zhang, Rui, Wang, Zhibin, Wang, Chao (2021) Compressive Sensing Absorption Spectroscopy Based on Photoelastic Modulation and Single-Pixel Detection. IEEE Sensors Journal, 21 (8). pp. 9885-9889. ISSN 1530-437X. (doi:10.1109/JSEN.2021.3057588) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:92168)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
https://doi.org/10.1109/JSEN.2021.3057588

Abstract

Conventional absorption spectroscopy falls short in complexity and measurement speed. Here, a new type of compressive sensing absorption spectroscopy technique employing a photoelastic modulator (PEM) is presented to address these challenges. The PEM is used to modulate the input spectrum and create multiple harmonic orders as the measurement channels. A sensing matrix is formed by randomly selecting elements from the modulation matrix. The measurement results of different frequency channels are simultaneously captured via a single-pixel photodetector without changing the physical parameters (such as PEM configurations or modulation frequencies). In a measurement example, the first five orders of harmonics are selected, and the input optical spectrum is successfully measured with a compression ratio of 1/16. To further verify the utility of our approach, the infrared spectrum with CO 2 absorption is successfully reconstructed with low error.

Item Type: Article
DOI/Identification number: 10.1109/JSEN.2021.3057588
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Chao Wang
Date Deposited: 06 Dec 2021 09:59 UTC
Last Modified: 06 Dec 2021 09:59 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/92168 (The current URI for this page, for reference purposes)
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