Determination of effective optical constants of infrared CO(2) waveguide laser materials.
We report a simple method for the determination of optical constants in the lambda = 10-microm region. The method is based on the measurement of reflectance over a wide range of angles of incidence by using a CO(2) laser as the source. Effective values of the refractive index and extinction coefficient at different CO(2) laser emission wavelengths are determined for alumina, fused silica, and beryllia, materials that are widely used for CO(2) waveguide lasers and for CO(2) laser beam transmission.
Khelkhal
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Herlemont
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