Ukrainian Journal of Physical Optics 

Number  1, Volume 5,  2004

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Optical Transmittance of Dichroic Crystals with “Isotropic Point” 
1Kushnir O., 1Dzendzelyuk O., 1Hrabovskyy V., 2Vlokh O.

1Electronics Department, Lviv National University, 107 Tarnavskii Str., 79017 Lviv, Ukraine
2Institute of Physical Optics, 23 Dragomanov Str., 79005 Lviv, Ukraine

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The coupled wave theory is modified for the case of electromagnetic wave propagation in semi-conductor crystals possessing a so-called isotropic point (IP) and a linear dichroism (LD). Modif-ications, due to the LD, imposed on the optical transmission spectra of band-pass and band-reject narrow-band optical filters built upon the chalcopyrite, wurtzite and zinc blend crystals are quantitative-ly explained and compared with the available experimental data. The main performance characteristics of the filters are re-calculated.

Key words: coupled mode theory, optical transmittance, dichroism, isotropic point, optical interference filters.
PACS: 78.20.Ci

doi 10.3116/16091833/5/1/1/2004
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