Print Email Facebook Twitter A compressive sensing with photonic crystals enabled spectrometer for trace gas observation Title A compressive sensing with photonic crystals enabled spectrometer for trace gas observation Author Siemons, M. E. (SRON Netherlands Institute for Space Research) Hagenaar, M. (Student TU Delft; SRON Netherlands Institute for Space Research) Adam, A.J.L. (TU Delft ImPhys/Adam group) Kohlhaas, R. (TU Delft ImPhys/Adam group; SRON Netherlands Institute for Space Research) Contributor Minoglou, Kyriaki (editor) Karafolas, Nikos (editor) Cugny, Bruno (editor) Date 2023 Abstract Recently a spectrometer concept has been invented which uses compressive sensing in combination with photonic crystal filters. Here we present an adaption of this concept in push-broom configuration for earth observation. This implementation allows for a compact design, while maintaining a high spatial resolution and high signal-to-noise ratio compared to other traditional implementations. The photonic crystals have a unique transmission profile and act as a spectral filter, which allows for the computational reconstruction of the input spectrum with a limited number of filters. We show, using simulations, that our approach is able to reconstruct input radiance spectra with high accuracy and assess the performance for different number of filter sets. We furthermore show proof-of-principle measurements of the transmission profile of a manufactured photonic crystal. Future research will focus on the effect of noise on the reconstruction algorithm as well as further filter set optimization by combining the filter selection process with trace gas concentration retrieval. Subject compressive sensingcomputation inversionearth observationphotonic crystalsSpectrometertrace gases To reference this document use: http://resolver.tudelft.nl/uuid:c2fa2632-2db7-4fe3-ae58-f03264bb2ec3 DOI https://doi.org/10.1117/12.2691361 Publisher SPIE ISBN 9781510668034 Source International Conference on Space Optics, ICSO 2022 Event 2022 International Conference on Space Optics, ICSO 2022, 2022-10-03 → 2022-10-07, Dubrovnik, Croatia Series Proceedings of SPIE - The International Society for Optical Engineering, 0277-786X, 12777 Part of collection Institutional Repository Document type conference paper Rights © 2023 M. E. Siemons, M. Hagenaar, A.J.L. Adam, R. Kohlhaas Files PDF 127776Y.pdf 1.99 MB Close viewer /islandora/object/uuid:c2fa2632-2db7-4fe3-ae58-f03264bb2ec3/datastream/OBJ/view