TITLE:
Wave Transmission in Dispersive Si-Based One Dimensional Photonic Crystal
AUTHORS:
Vipin Kumar, B. Suthar, Arun Kumar, Vinay Kumar, Kh. S. Singh, A. Bhargva, S. P. Ojha
KEYWORDS:
Photonic Crystals; Omni-Directional Reflection; Optical Filter
JOURNAL NAME:
Optics and Photonics Journal,
Vol.2 No.3A,
September
28,
2012
ABSTRACT: 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.