Spectrum slicer for snapshot spectral imaging

Miu Tamamitsu; Yutaro Kitagawa; Keiichi Nakagawa; Ryoichi Horisaki; Yu Oishi; Shin-ya Morita; Yutaka Yamagata; Kentaro Motohara; Keisuke Goda

doi:10.1117/1.OE.54.12.123115

29 December 2015 Spectrum slicer for snapshot spectral imaging

Miu Tamamitsu, Yutaro Kitagawa, Keiichi Nakagawa, Ryoichi Horisaki, Yu Oishi, Shin-ya Morita, Yutaka Yamagata, Kentaro Motohara, Keisuke Goda

Author Affiliations +

Optical Engineering, Vol. 54, Issue 12, 123115 (December 2015). https://doi.org/10.1117/1.OE.54.12.123115

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.

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Miu Tamamitsu, Yutaro Kitagawa, Keiichi Nakagawa, Ryoichi Horisaki, Yu Oishi, Shin-ya Morita, Yutaka Yamagata, Kentaro Motohara, and Keisuke Goda "Spectrum slicer for snapshot spectral imaging," Optical Engineering 54(12), 123115 (29 December 2015). https://doi.org/10.1117/1.OE.54.12.123115

Published: 29 December 2015

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