Assessment of type IIA diamond as an optical material for use in severe environments

Stephen P. McGeoch; Desmond R. Gibson; James Anthony Savage

doi:10.1117/12.130793

14 December 1992 Assessment of type IIA diamond as an optical material for use in severe environments

Stephen P. McGeoch, Desmond R. Gibson, James Anthony Savage

Proceedings Volume 1760, Window and Dome Technologies and Materials III; (1992) https://doi.org/10.1117/12.130793
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

Results are presented from a program of tests carried out on bulk type IIa (natural) diamond. The objectives were to assess diamond as a material for optical windows exposed to severe environmental conditions, and to determine benchmarks for the performance of synthetic, film-grown diamond. Measurements have been carried out of transmittance and reflectance from the UV to the far-IR, IR transmittance up to 700 degree(s)C, and absorptance at specific CO₂ laser wavelengths (determined by laser calorimetry). Water jet impact and simulated sand erosion resistance have been evaluated. The laser-induced damage threshold at 10.6 micrometers has been measured.

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Stephen P. McGeoch, Desmond R. Gibson, and James Anthony Savage "Assessment of type IIA diamond as an optical material for use in severe environments", Proc. SPIE 1760, Window and Dome Technologies and Materials III, (14 December 1992); https://doi.org/10.1117/12.130793

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