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Theory of thin-film, narrowband, linear-polarization rejection filters with superlattice structure |
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| Authors: | Vincenzo Fiumara Francesco Chiadini |
| Institution: | a Department of Environmental Engineering and Physics, University of Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy b Department of Electrical and Information Engineering, University of Salerno, via Ponte Don Melillo, Fisciano (SA), 84084, Italy c Computational and Theoretical Materials Sciences Group (CATMAS), Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA 16802-6812, USA |
| Abstract: | A device to be obtained by depositing a columnar thin-film on a transparent substrate decorated periodically by an array of rectangular grooves is proposed as a narrowband, linear-polarization rejection filter. The rigorous coupled-wave approach is harnessed to calculate the reflectances and transmittances. High-quality filters of chosen materials and with less than 2 nm bandwidths can be designed with a vapor flux angle for deposition of the columnar thin-film as the controlling parameter. |
| Keywords: | 42 15 Eq 42 25 Bs 42 25 Ja |
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