Abstract

A high étendue static Fourier transform spectral imager has been developed for airborne use. This imaging spectrometer, based on a Michelson interferometer with rooftop mirrors, is compact and robust and benefits from a high collection efficiency. Experimental airborne images were acquired in the visible domain. The processing chain to convert raw images to hyperspectral data is described, and airborne spectral images are presented. These experimental results show that the spectral resolution is close to the one expected, but also that the signal to noise ratio is limited by various phenomena (jitter, elevation fluctuations, and one parasitic image). We discuss the origin of those limitations and suggest solutions to circumvent them.

© 2011 Optical Society of America

Static Fourier transform infrared spectrometer

Michael Schardt, Patrik J. Murr, Markus S. Rauscher, Anton J. Tremmel, Benjamin R. Wiesent, and Alexander W. Koch
Opt. Express 24(7) 7767-7776 (2016)

Static Fourier-transform ultraviolet spectrometer for gas detection

J. Courtial, B. A. Patterson, W. Hirst, A. R. Harvey, A. J. Duncan, W. Sibbett, and M. J. Padgett
Appl. Opt. 36(13) 2813-2817 (1997)

Birefringent static Fourier-transform spectrometer for flow cytometry and imaging spectroscopy

Alex Hegyi
Opt. Express 25(15) 17402-17410 (2017)

Birefringent Fourier-transform imaging spectrometer

Andrew Robert Harvey and David William Fletcher-Holmes
Opt. Express 12(22) 5368-5374 (2004)

Broadband static Fourier transform mid-infrared spectrometer

Michael H. Köhler, Stefan S. Naßl, Patrick Kienle, Xingchen Dong, and Alexander W. Koch
Appl. Opt. 58(13) 3393-3400 (2019)