Optical design of Fery imaging spectrometer with large working distance and long slit length

This article demonstrates a imaging spectrometer using Fery prism with large working distance and long slit length. Two spherical lenses are inserted between the double-convex lens and the Fery prism to enlarge the clearance distance. Using this method, an imaging spectrometer with a 37.2° field of...

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Bibliographic Details
Published in:Optics communications 2024-06, Vol.561, p.130537, Article 130537
Main Authors: He, Xiaoying, Li, Yacan, Feng, Lei, Zhou, Jinsong, Jing, Juanjuan, Nie, Boyang, Yang, Lei
Format: Article
Language:English
Subjects:
Curved prism
Large work length
Spectroscopy
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Summary:This article demonstrates a imaging spectrometer using Fery prism with large working distance and long slit length. Two spherical lenses are inserted between the double-convex lens and the Fery prism to enlarge the clearance distance. Using this method, an imaging spectrometer with a 37.2° field of view and F# 2.2 is designed, and the measured spectrum ranges from 400 nm to 900 nm. The performance is analyzed and evaluated. Laboratory testing results prove the excellent optical performance. This compact, cost-effective spectrometer with high performance and less stray light has a huge potential for broadband space exploration.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2024.130537