Birefringence and grain-size effects on optical transmittance of polycrystalline magnesium fluoride

Tzu-Chien Wen; Dinesh K. Shetty

doi:10.1117/12.818933

27 April 2009 Birefringence and grain-size effects on optical transmittance of polycrystalline magnesium fluoride

Tzu-Chien Wen, Dinesh K. Shetty

Proceedings Volume 7302, Window and Dome Technologies and Materials XI; 73020Z (2009) https://doi.org/10.1117/12.818933
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

Grain boundaries scatter light in polycrystalline materials consisting of birefringent crystals. Apetz and van Bruggen developed a model for grain-boundary scattering based on Rayleigh-Gans-Debye light-scattering theory and demonstrated its application to polycrystalline alumina. This paper reports the measurements of in-line transmittance in polycrystalline magnesium fluoride with different grain sizes and compares the results with the grain-boundary scattering model. Good agreement was obtained between the model predictions and the measured data for grain sizes varying between 0.2 and 2.3 μm for light in the wavelength range, 0.633-5.5 μm.

Citation Download Citation

Tzu-Chien Wen and Dinesh K. Shetty "Birefringence and grain-size effects on optical transmittance of polycrystalline magnesium fluoride", Proc. SPIE 7302, Window and Dome Technologies and Materials XI, 73020Z (27 April 2009); https://doi.org/10.1117/12.818933

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