Volume 109, Number 2, January 2015
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||30 January 2015|
A new transfer matrix method to calculate the optical absorption of graphene at any position in stratified media
1 Department of Physics, Nanchang University - Nanchang 330031, China
2 State Key Laboratory of Millimeter Waves, Southeast University - Nanjing 210096, China
3 Institute for Advanced Study, Nanchang University - Nanchang 330031, China
Received: 5 December 2014
Accepted: 5 January 2015
A new transfer matrix method is developed based on the electromagnetic boundary conditions that Maxwell's equations required. Compared with the traditional transfer matrix method, the new method can be used to calculate the optical absorption of any layer at any position in stratified media. By using this new method, we investigate the optical absorption properties of a single graphene sheet in one-dimensional photonic-crystal (1DPC) heterostructures. We demonstrate that the optical absorption of graphene can be greatly enhanced up to almost 100% by the use of the 1DPC heterostructures because of the strong photon localization in the layer of graphene.
PACS: 78.20.-e – Optical properties of bulk materials and thin films / 78.20.Bh – Theory, models, and numerical simulation / 42.25.Bs – Wave propagation, transmission and absorption
© EPLA, 2015
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