A new heterodyne tandem-interferometer for fully interferometric three-dimensional imaging spectrometry

Tetsuya Hashimoto; Akiko Hirai; Kyu Yoshimori

doi:10.1117/12.2022104

7 June 2013 A new heterodyne tandem-interferometer for fully interferometric three-dimensional imaging spectrometry

Tetsuya Hashimoto, Akiko Hirai, Kyu Yoshimori

Proceedings Volume 8883, ICPS 2013: International Conference on Photonics Solutions; 88830T (2013) https://doi.org/10.1117/12.2022104
Event: International Conference on Photonics Solutions 2013, 2013, Pattaya City, Thailand

Abstract

We have studied a method to obtain both three-dimensional (3-D) spatial information and spectral information of a usual polychromatic object by a fully passive interferometric technique that is strongly coupled with digital signal processing^{1- 6}. Our method can be used for a vast range of wavelengths, because no special imaging devices, such as lenses, are required. In addition, coherent light sources are not necessary. A hyperbolic-type volume interferogram⁶ is one type of the volume interferogram, which is used for retrieve the object information, and an interferometer to measure directly this volume interferogram has been introduced³. This paper introduces a method to measure the hyperbolic-type volume interferogram with high sensitivity in fully interferometric 3-D imaging spectrometry. This is accomplished by coupling of interferometer to measure directly the hyperbolic-type volume interferogram and heterodyne detection system⁷ for broadband light. We also report a preliminary experimental result based on the interferometer to measure directly the hyperbolic-type volume interferogram.

Citation Download Citation

Tetsuya Hashimoto, Akiko Hirai, and Kyu Yoshimori "A new heterodyne tandem-interferometer for fully interferometric three-dimensional imaging spectrometry", Proc. SPIE 8883, ICPS 2013: International Conference on Photonics Solutions, 88830T (7 June 2013); https://doi.org/10.1117/12.2022104

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