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Title: Enhanced absorption of monolayer MoS{sub 2} with resonant back reflector

The optical absorption of monolayer MoS{sub 2} on top of one-dimensional photonic crystal (1DPC) or metal films with spacer layers is theoretically investigated by extracting the permittivity of monolayer MoS{sub 2} from existing experimental results [K. F. Mak et al., Phys. Rev. Lett. 105, 136805 (2010)]. The absorption of graphene with 1DPC across a broad spectral range is substantially enhanced because of the photonic localization at the optical micro-cavity on top of the 1DPC or metal films. The absorption of monolayer MoS{sub 2} can be tuned by varying either the distance between the monolayer MoS{sub 2} and the back reflector or the thickness of the cover layers.
Authors:
;  [1] ;  [2] ;  [3] ;  [4]
  1. Nanoscale Science and Technology Laboratory, Institute for Advanced Study, Nanchang University, Nanchang 330031 (China)
  2. (China)
  3. Department of Physics, Nanchang University, Nanchang 330031 (China)
  4. College of Physics and Energy, Fujian Normal University, Fuzhou 350007 (China)
Publication Date:
OSTI Identifier:
22304408
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 19; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION; CAVITY RESONATORS; CRYSTALS; FILMS; GRAPHENE; LAYERS; METALS; MOLYBDENUM SULFIDES; OPTICAL REFLECTION; PERMITTIVITY; RESONANCE; SIMULATION; THICKNESS