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17 March 2023 Aberration correction lens grating micro-spectrometer with improved spectral resolution
Gi Beom Kim, Jung-Woo Park, Jaehun Jeon, Ki-Hun Jeong
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Proceedings Volume 12434, MOEMS and Miniaturized Systems XXII; 124340B (2023) https://doi.org/10.1117/12.2650974
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
Various compact spectrometer configurations have been proposed to reduce size. But due to the mismatch between the size and the focusing, optical aberration and poor spectral resolution occur. This work reports an aberration correction lens with a transmission grating (ACLG) based compact spectrometer that improves spectral resolution. It is packaged with an assembly of top, bottom parts, and middle ACLG parts, the overall thickness of the spectrometer is 10mm and has an average resolution of 2nm over a wide range of 500 to 1000nm. This compact spectrometer with high performance can serve as a core device of handheld or portable analysis equipment.
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Gi Beom Kim, Jung-Woo Park, Jaehun Jeon, and Ki-Hun Jeong "Aberration correction lens grating micro-spectrometer with improved spectral resolution", Proc. SPIE 12434, MOEMS and Miniaturized Systems XXII, 124340B (17 March 2023); https://doi.org/10.1117/12.2650974
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KEYWORDS
Spectroscopy
Spectral resolution
Aberration correction
Diffraction gratings
Nondestructive evaluation
Optical aberrations
Optical design
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