New infrared transparent oxide glasses

Richard Weber; Jean Tangeman; Kirsten Hiera; Richard Scheunemann; Jungyun Kim

doi:10.1117/12.606914

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18 May 2005 New infrared transparent oxide glasses

Richard Weber, Jean Tangeman, Kirsten Hiera, Richard Scheunemann, Jungyun Kim

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Proceedings Volume 5786, Window and Dome Technologies and Materials IX; (2005) https://doi.org/10.1117/12.606914
Event: Defense and Security, 2005, Orlando, Florida, United States

Abstract

Glass materials based on rare earth oxides and aluminum oxide can provide a combination of infrared transparency, strength, hardness, and environmental stability in a formable material. This article describes a new family of rare earth oxide-aluminum oxide glass materials that can be made by casting from melts formed in platinum crucibles. The glasses transmit light in the wavelength range from 0.3 to 5 μm in sections of ~0.3 cm, they have a Vickers hardness of 800-1000, and exhibit excellent environmental stability typical of refractory oxide materials. The composition of the glass can be adjusted to achieve refractive indices in the range 1.7-1.8 and Abbe numbers of 30-60. The materials are promising candidates for passive optical elements or as a host for optically active ions such as Yb or Nd that provide laser action or absorb at laser line wavelengths.

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Richard Weber, Jean Tangeman, Kirsten Hiera, Richard Scheunemann, and Jungyun Kim "New infrared transparent oxide glasses", Proc. SPIE 5786, Window and Dome Technologies and Materials IX, (18 May 2005); https://doi.org/10.1117/12.606914

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