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Proceedings Paper

Proposal of AAA-battery-size one-shot ATR Fourier spectroscopic imager for on-site analysis: Simultaneous measurement of multi-components with high accuracy
Author(s): Satsuki Hosono; Wei Qi; Shun Sato; Yo Suzuki; Masaru Fujiwara; Hiroyuki Hiramatsu; Satoru Suzuki; P. K. W. Abeygunawardhana; Kenji Wada; Akira Nishiyama; Ichiro Ishimaru
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Paper Abstract

For simultaneous measurement of multi-components on-site like factories, the ultra-compact (diameter: 9[mm], length: 45[mm], weight: 200[g]) one-shot ATR (Attenuated Total Reflection) Fourier spectroscopic imager was proposed. Because the proposed one-shot Fourier spectroscopic imaging is based on spatial-phase-shift interferometer, interferograms could be obtained with simple optical configurations. We introduced the transmission-type relativeinclined phase-shifter, that was constructed with a cuboid prism and a wedge prism, onto the optical Fourier transform plane of infinity corrected optical systems. And also, small light-sources and cameras in the mid-infrared light region, whose size are several millimeter on a side, are essential components for the ultra-compact spectroscopic configuration. We selected the Graphite light source (light source area: 1.7×1.7[mm], maker: Hawkeye technologies) whose radiation factor was high. Fortunately, in these days we could apply the cost-effective 2-dimensional light receiving device for smartphone (e.g. product name: LEPTON, maker: FLIR, price: around 400USD). In the case of alcoholic drinks factory, conventionally workers measure glucose and ethanol concentrations by bringing liquid solution back to laboratories every day. The high portable spectroscopy will make it possible to measure multi-components simultaneously on manufacturing scene. But we found experimentally that absorption spectrum of glucose and water and ethanol were overlapped each other in near infrared light region. But for mid-infrared light region, we could distinguish specific absorption peaks of glucose (@10.5[μm]) and ethanol (@11.5[μm]) independently from water absorption. We obtained standard curve between absorption (@9.6[μm]) and ethanol concentration with high correlation coefficient 0.98 successfully by ATR imaging-type 2-dimensional Fourier spectroscopy (wavelength resolution: 0.057[μm]) with the graphite light source (maker: Hawkeye technologies, type: IR-75).

Paper Details

Date Published: 12 March 2015
PDF: 6 pages
Proc. SPIE 9314, Optics and Biophotonics in Low-Resource Settings, 93140O (12 March 2015); doi: 10.1117/12.2077476
Show Author Affiliations
Satsuki Hosono, Kagawa Univ. (Japan)
Wei Qi, Kagawa Univ. (Japan)
Shun Sato, Kagawa Univ. (Japan)
Yo Suzuki, Kagawa Univ. (Japan)
Masaru Fujiwara, Kagawa Univ. (Japan)
Hiroyuki Hiramatsu, Kagawa Univ. (Japan)
Satoru Suzuki, Kagawa Univ. (Japan)
P. K. W. Abeygunawardhana, Kagawa Univ. (Japan)
Kenji Wada, Kagawa Univ. (Japan)
Akira Nishiyama, Kagawa Univ. (Japan)
Ichiro Ishimaru, Kagawa Univ. (Japan)

Published in SPIE Proceedings Vol. 9314:
Optics and Biophotonics in Low-Resource Settings
David Levitz; Aydogan Ozcan; David Erickson, Editor(s)

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