IRG 27: a "new" glass type for multi-band IR optics

Mark J. Davis; William James III; Gernot Weber; Ralf Jedamzik

doi:10.1117/12.2257225

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16 February 2017 IRG 27: a "new" glass type for multi-band IR optics

Mark J. Davis, William James III, Gernot Weber, Ralf Jedamzik

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Proceedings Volume 10100, Optical Components and Materials XIV; 1010016 (2017) https://doi.org/10.1117/12.2257225
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

SCHOTT has introduced IRG 27, a classic chalcogenide glass (As₂S₃), possessing transparency from approximately 0.65 μm to well into the long-wavelength IR (> 10 μm). Additionally, this glass exhibits an extremely small thermo-optic (dn/dT) value for most of its transparency range, a critical attribute in certain applications. Relatively low density and a good thermal expansion match to aluminum are further useful characteristics of IRG 27.

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Mark J. Davis, William James III, Gernot Weber, and Ralf Jedamzik "IRG 27: a "new" glass type for multi-band IR optics", Proc. SPIE 10100, Optical Components and Materials XIV, 1010016 (16 February 2017); https://doi.org/10.1117/12.2257225

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