We demonstrate a miniaturized broadband spectrometer employing a reconstruction algorithm for resolution enhancement. We use an opto-digital co-design approach, by firstly designing an optical system with certain residual aberrations and then correcting these aberrations with a digital algorithm. The proposed optical design provides an optical resolution less than 1.7 nm in the VIS-channel (400-790 nm) and less than 3.4 nm in the NIR-channel (760-1520 nm). Tolerance analysis results show that the components are within a commercial class, ensuring a cost-efficient design. We build the prototype with a size of 37x30x26 mm(3) and demonstrate that by applying a restoration algorithm, the optical resolution can be further improved to less than 1.3 nm (VIS-channel) and less than 2.3 nm (NIR-channel). (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Shcheglov, A, Nie, Y, Schretter, C, Heeman, R, van der Put, A, Hoving, W, Thienpont, H, Schelkens, P & Ottevaere, PDIH 2022, 'Miniaturized cost-effective broadband spectrometer employing a deconvolution reconstruction algorithm for resolution enhancement', Optics Express, vol. 30, no. 7, pp. 11459-11471. https://doi.org/10.1364/OE.450513
Shcheglov, A., Nie, Y., Schretter, C., Heeman, R., van der Put, A., Hoving, W., Thienpont, H., Schelkens, P., & Ottevaere, P. D. I. H. (2022). Miniaturized cost-effective broadband spectrometer employing a deconvolution reconstruction algorithm for resolution enhancement. Optics Express, 30(7), 11459-11471. https://doi.org/10.1364/OE.450513
@article{e6c30e0886774eb19d90e30093f15c16,
title = "Miniaturized cost-effective broadband spectrometer employing a deconvolution reconstruction algorithm for resolution enhancement",
abstract = "We demonstrate a miniaturized broadband spectrometer employing a reconstruction algorithm for resolution enhancement. We use an opto-digital co-design approach, by firstly designing an optical system with certain residual aberrations and then correcting these aberrations with a digital algorithm. The proposed optical design provides an optical resolution less than 1.7 nm in the VIS-channel (400-790 nm) and less than 3.4 nm in the NIR-channel (760-1520 nm). Tolerance analysis results show that the components are within a commercial class, ensuring a cost-efficient design. We build the prototype with a size of 37x30x26 mm(3) and demonstrate that by applying a restoration algorithm, the optical resolution can be further improved to less than 1.3 nm (VIS-channel) and less than 2.3 nm (NIR-channel). (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement",
keywords = "BLIND SPECTRAL DECONVOLUTIONNEAR-INFRARED SPECTROSCOPY",
author = "Artem Shcheglov and Yunfeng Nie and Colas Schretter and Rob Heeman and {van der Put}, Arthur and Willem Hoving and Hugo Thienpont and Peter Schelkens and Ottevaere, {Prof. Dr. Ir. Heidi}",
note = "Funding Information: Funding. European Union{\textquoteright}s Horizon 2020 Research and Innovation program under the Marie Sklodowska-Curie Action (765635, xCLASS); Fonds Wetenschappelijk Onderzoek (FWOTM1039); Vrije Universiteit Brussel (Hercules, Methusalem, OZR). Publisher Copyright: {\textcopyright} 2022 Optica Publishing Group Copyright: Copyright 2022 Elsevier B.V., All rights reserved.",
year = "2022",
month = mar,
day = "28",
doi = "10.1364/OE.450513",
language = "English",
volume = "30",
pages = "11459--11471",
journal = "Optics Express",
issn = "1094-4087",
publisher = "The Optical Society",
number = "7",
}