Proposal of snapshot line-imaging Fourier spectroscopy for smartphone

Natsumi Kawashima; Shun Sato; Akane Ishida; Daichi Inohara; Naotaka Tanaka; Kenji Wada; Akira Nishiyama; Masaru Fujiwara; Ichiro Ishimaru

doi:10.1117/12.2078039

12 March 2015 Proposal of snapshot line-imaging Fourier spectroscopy for smartphone

Natsumi Kawashima, Shun Sato, Akane Ishida, Daichi Inohara, Naotaka Tanaka, Kenji Wada, Akira Nishiyama, Masaru Fujiwara, Ichiro Ishimaru

Author Affiliations +

Proceedings Volume 9314, Optics and Biophotonics in Low-Resource Settings; 93140P (2015) https://doi.org/10.1117/12.2078039
Event: SPIE BiOS, 2015, San Francisco, California, United States

Abstract

We propose the extremely-compact-size line-imaging Fourier spectroscopy for smartphones. We realize the near common-path interferometer with strong robustness for mechanical vibrations by installing the transmission-type relative-inclined phase-shifter. The interferogram of an imaging line is formed as 2-dimensional fringe pattern on imaging sensor, such as CCD camera. In other words, the horizontal axis on an imaging sensor is assigned to phase-shift value. And the vertical axis is corresponds to image formation coordinate. Thus, by installing a relatively-inclined thin glass into imaging optics, such as smartphone, we will realize the line-imaging Fourier spectroscopy for healthcare sensor in daily-life environments.

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Natsumi Kawashima, Shun Sato, Akane Ishida, Daichi Inohara, Naotaka Tanaka, Kenji Wada, Akira Nishiyama, Masaru Fujiwara, and Ichiro Ishimaru "Proposal of snapshot line-imaging Fourier spectroscopy for smartphone", Proc. SPIE 9314, Optics and Biophotonics in Low-Resource Settings, 93140P (12 March 2015); https://doi.org/10.1117/12.2078039

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