Abstract

In support of SDIO objectives to develop optical quality CVD diamond windows, multiwavelength measurements of IR transmission, reflection, emissivity, and scatter are being made on samples from room temperature to 500°C. Free standing CVD diamond is compared with natural type IIa diamond of similar thickness and identical temperature. Extrinsic effects are measured in CVD windows provided by various manufacturers and laboratories but are measured under the same conditions and with the same equipment. No manufacturers will be identified. Intrinsic properties such as two-phonon absorption are compared with model predictions.

© 1992 Optical Society of America