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Optical Engineering

Spectrum slicer for snapshot spectral imaging
Author(s): Miu Tamamitsu; Yutaro Kitagawa; Keiichi Nakagawa; Ryoichi Horisaki; Yu Oishi; Shin-ya Morita; Yutaka Yamagata; Kentaro Motohara; Keisuke Goda
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Paper Abstract

We propose and demonstrate an optical component that overcomes critical limitations in our previously demonstrated high-speed multispectral videography—a method in which an array of periscopes placed in a prism-based spectral shaper is used to achieve snapshot multispectral imaging with the frame rate only limited by that of an image-recording sensor. The demonstrated optical component consists of a slicing mirror incorporated into a 4f-relaying lens system that we refer to as a spectrum slicer (SS). With its simple design, we can easily increase the number of spectral channels without adding fabrication complexity while preserving the capability of high-speed multispectral videography. We present a theoretical framework for the SS and its experimental utility to spectral imaging by showing real-time monitoring of a dynamic colorful event through five different visible windows.

Paper Details

Date Published: 29 December 2015
PDF: 6 pages
Opt. Eng. 54(12) 123115 doi: 10.1117/1.OE.54.12.123115
Published in: Optical Engineering Volume 54, Issue 12
Show Author Affiliations
Miu Tamamitsu, The Univ. of Tokyo (Japan)
Yutaro Kitagawa, The Univ. of Tokyo (Japan)
Keiichi Nakagawa, The Univ. of Tokyo (Japan)
Ryoichi Horisaki, Osaka Univ. (Japan)
Yu Oishi, RIKEN (Japan)
Shin-ya Morita, RIKEN (Japan)
Tokyo Denki Univ. (Japan)
Yutaka Yamagata, RIKEN (Japan)
Kentaro Motohara, The Univ. of Tokyo (Japan)
Keisuke Goda, The Univ. of Tokyo (Japan)
Univ. of California, Los Angeles (United States)

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