Transmission ratio of the Glan–Taylor prism with deviated optical axes in the static polarization interference imaging spectrometer

α-BaTeMo(2)O(9) is a novel biaxial crystal with wide-band transmittance spectrum. The refractive index dispersion curves and birefringence of the α-BaTeMo(2)O(9) crystal were obtained in spectral range of 0.4~5 μm. The origin of the birefringence for the crystal has been calculated and interpreted on the basis of the crystal structure combined with theoretical studies. The polarized directions and formulations of refractive index of optical waves in biaxial α-BaTeMo(2)O(9) were investigated by solving the refractive index ellipsoid equations. Furthermore, polarized prisms based on the α-BaTeMo(2)O(9) crystal used in spectral ranges of 0.4~2.7 μm and 0.48~4.5 μm were designed and characterized. The extinction ratios of both prisms were determined to be larger than 10000:1, which would satisfy the practical requirements. The impacts on extinction ratio for biaxial and uniaxial crystals were also discussed. To our knowledge, it is the first report about biaxial crystals for the polarized prisms, and the results show that the α-BaTeMo(2)O(9) crystal is a promising material for polarized optical components, especially in the range of 3~5 μm.

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Transmission ratio of the Glan–Taylor prism with deviated optical axes in the static polarization interference imaging spectrometer

Cited by 3 publications

References 15 publications

Influence of the optical axis orientation of the Glan-Taylor prism and the incident angle on the extraordinary ray

Influence of the optical axis orientation of the Glan-Taylor prism and the incident angle on the extraordinary ray

Complete throughput analysis of the static four-phase-divided wind imaging interferometer

Biaxial crystal α-BaTeMo_2O_9: theory study of large birefringence and wide-band polarized prisms design

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