Absorption and bandwidth properties of graphene based 1D-photonic crystal for THz devices

Autor: G. N. Pandey, Roshni Maurya, Prabal P. Singh, Krishan Pal, Pawan Singh, Khem B. Thapa
Rok vydání: 2020
Předmět:
Zdroj: AIP Conference Proceedings.
ISSN: 0094-243X
DOI: 10.1063/5.0001755
Popis: In this paper, we study effect of chemical potential, temperature and the number of graphene on the tunable optical characteristics and photonic band gap (PBG) of one-dimensional graphene based photonic crystal (1D-GPC). For this, we use the transfer matrix method (TMM) which is based on the solution of Maxwell’s equation and Bloch’s function. As the inherent property of graphene like chemical potential or gate voltage and temperature, the tunable absorption and photonic band gap (PBG) are affected in the terahertz (THz) frequency region. Our investigation reports that the PBG of 1D-GPC is varied with number of the graphene layers at different temperatures and different chemical potentials. The proposed graphene based periodic structure with large number of graphene layers at high chemical potential and low temperature may be used in THz devices.
Databáze: OpenAIRE