Hyperspectral imaging camera using wavefront division interference

An approach for performing hyperspectral imaging is introduced. The hyperspectral imaging is based on Fourier transform spectroscopy, where the interference is performed by wavefront division interference rather than amplitude division interference. A variable phase delay between two parts of the wa...

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Bibliographic Details
Published in:Optics letters 2016-03, Vol.41 (5), p.938-941
Main Authors: Bahalul, Eran, Bronfeld, Asaf, Epshtein, Shlomi, Saban, Yoram, Karsenty, Avi, Arieli, Yoel
Format: Article
Language:English
Subjects:
Conversion
Delay
Emission
Fourier transforms
Hyperspectral imaging
Imaging
Interference
Wave fronts
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Summary:An approach for performing hyperspectral imaging is introduced. The hyperspectral imaging is based on Fourier transform spectroscopy, where the interference is performed by wavefront division interference rather than amplitude division interference. A variable phase delay between two parts of the wavefront emanating from each point of an object is created by a spatial light modulator (SLM) to obtain variable interference patterns. The SLM is placed in the exit pupil of an imaging system, thus enabling conversion of a general imaging optical system into an imaging hyperspectral optical system. The physical basis of the new approach is introduced, and an optical apparatus is built.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.41.000938