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Transmission of electromagnetic waves through a Si-based one dimensional photonic crystal has been investigated. The proposed structure works as an omni-directional reflector for a certain range of wavelength for an angle of incidence up to 55?. The structure works as a narrow band TM-polarization filter for an angle of incidence more than 55?, i.e. a filter which completely blocks TE-polarized waves but allows certain wavelengths of TM-polarized waves. But at an angle of incidence of 89?, the structure works as a multiple narrow band TM-polarization filter even though no defect layer is introduced inside the structure. It is also found that this multiple narrow pass-bands of TM-polarized waves can be tuned to a desired range of wavelength by changing the temperature of the structure.

KEYWORDS

Photonic Crystals; Omni-Directional Reflection; Optical Filter

Cite this paper

V. Kumar, B. Suthar, A. Kumar, V. Kumar, K. Singh, A. Bhargva and S. Ojha -Wave Transmission in Dispersive Si-Based One Dimensional Photonic Crystal,- Optics and Photonics Journal, Vol. 2 No. 3A, 2012, pp. 237-241. doi: 10.4236-opj.2012.223036.





Autor: Vipin Kumar, B. Suthar, Arun Kumar, Vinay Kumar, Kh. S. Singh, A. Bhargva, S. P. Ojha

Fuente: http://www.scirp.org/



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