https://doi.org/10.1140/epjp/s13360-022-03533-6
Regular Article
Design and analysis of tunable multichannel transmission filters with a binary photonic crystal of silver/silicon
1
Department of Physics, Government Dungar College, 334001, Bikaner, Rajasthan, India
2
Department of Physics, SLAS, Mody University of Science and Technology, 332311, Lakshmangarh, Sikar, Rajasthan, India
3
Physics Department, Islamic University of Gaza, P.O. Box 108, Gaza, Palestine
Received:
28
July
2022
Accepted:
23
November
2022
Published online:
2
December
2022
The present article is based on the analysis of multichannel transmission behavior of a 1D binary PC composed of silver/silicon. By using the transfer matrix method, the transmission spectra are plotted in various cases. PC exhibits a better response for multichannel transmission behavior with respect to sharpness in the case of TE mode compared to TM mode. With an increase in the thickness of layer B, the shifting in the transmission peaks is toward a low-frequency region contrary to the results in the case of increasing the thickness of layer A. Although the transmission peaks are equally spaced for fixed parameters, it shows multichannel filtering characteristics. Furthermore, PC gives better results for multichannel transmission behavior at low plasma frequency with less broadening. Finally, we demonstrate that the PC offers multichannel transmittance characteristics with increased number of unit cells, in which transmission peaks at low frequency are closely spaced as compared to those at higher frequencies. Hence, owing to diverse behavior of multichannel transmission of the PC in different cases, the insights of the article offer novel ideas to design optical devices, such as a multichannel filters, multispectral imaging and wavelength-division multiplexing systems.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
