HEIFTS 2: two new optical geometries for imaging Fourier transform spectrometers

Richard F. Horton

doi:10.1117/12.2632642

30 September 2022 HEIFTS 2: two new optical geometries for imaging Fourier transform spectrometers

Richard F. Horton

Proceedings Volume 12235, Imaging Spectrometry XXV: Applications, Sensors, and Processing; 1223506 (2022) https://doi.org/10.1117/12.2632642
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

In 1996, the original HEIFTS paper described a totally new FT imaging spectrometer with no moving parts. Papers in 1997 and 2000 followed. In 1998 US US granted Patent #5,777,736, covering the device’s unique optical geometry and data reduction scheme. Light interfering at the image plane need not come from a single aperture. Two new geometries are proposed. The first uses light from two separate but identical objectives. The second uses light from a single objective split by mirrors situated at a pupil image. The physics of the original device will be reviewed and specific examples of the two new optical geometries.

Conference Presentation

Citation Download Citation

Richard F. Horton "HEIFTS 2: two new optical geometries for imaging Fourier transform spectrometers", Proc. SPIE 12235, Imaging Spectrometry XXV: Applications, Sensors, and Processing, 1223506 (30 September 2022); https://doi.org/10.1117/12.2632642

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