Development of INP immersion grating for the near- to mid-infrared wavelength

Takashi Sukegawa; Yukinobu Okura; Tomonao Nakayasu

doi:10.1117/12.2296077

25 September 2017 Development of INP immersion grating for the near- to mid-infrared wavelength

Takashi Sukegawa, Yukinobu Okura, Tomonao Nakayasu

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Proceedings Volume 10562, International Conference on Space Optics — ICSO 2016; 1056206 (2017) https://doi.org/10.1117/12.2296077
Event: International Conference on Space Optics — ICSO 2016, 2016, Biarritz, France

Abstract

An Immersion grating is a powerful optical device for the infrared high-resolution spectroscope. We already fabricated the large CdZnTe(CZT) immersion grating (Sukegawa et al. (2012), Fig.1)[1][2][3] and Germanium(Ge) immersion grating (Sukegawa et al. (2015), Fig.2)[4]. Ge is the best material for a mid-infrared immersion grating because of Ge has very large reflective index (n=4.0).

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Takashi Sukegawa, Yukinobu Okura, and Tomonao Nakayasu "Development of INP immersion grating for the near- to mid-infrared wavelength", Proc. SPIE 10562, International Conference on Space Optics — ICSO 2016, 1056206 (25 September 2017); https://doi.org/10.1117/12.2296077

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