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Proceedings Paper

Generalized aberration reduction procedure of a concave grating for hyperspectral imaging
Author(s): Cheng-Hao Ko; Chia-Hui Tang; Jih-Run Tsai; Bang-Ji Wang
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Paper Abstract

A generalized optimization process for reducing the aberration of a concave grating is developed. Our aberration reduction process is to minimize the root-mean-square spot sizes for the spectral range on the detector plane. To evaluate the performance, a model based on a previous concave grating designed for a mid-infrared (7.5 μm ~13.5 μm) spectrometer is built. The result shows that the current new approach has a dramatic improvement in aberration reduction and yields better spectral resolution.

Paper Details

Date Published: 17 December 2014
PDF: 5 pages
Proc. SPIE 9293, International Optical Design Conference 2014, 92930F (17 December 2014); doi: 10.1117/12.2073260
Show Author Affiliations
Cheng-Hao Ko, National Taiwan Univ. of Science and Technology (Taiwan)
Chia-Hui Tang, National Taiwan Univ. of Science and Technology (Taiwan)
Jih-Run Tsai, National Space Organization (Taiwan)
Bang-Ji Wang, National Space Organization (Taiwan)


Published in SPIE Proceedings Vol. 9293:
International Optical Design Conference 2014
Mariana Figueiro; Scott Lerner; Julius Muschaweck; John Rogers, Editor(s)

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