Enhanced absorption of monolayer MoS2 with resonant back reflector

Abstract

By extracting the permittivity of monolayer MoS2 from experiments, the optical absorption of monolayer MoS2 prepared on top of one-dimensional photonic crystal (1DPC) or metal films is investigated theoretically. The 1DPC and metal films act as resonant back reflectors that can enhance absorption of monolayer MoS2 substantially over a broad spectral range due to the Fabry-Perot cavity effect. The absorption of monolayer MoS2 can also be tuned by varying either the distance between the monolayer MoS2 and the back reflector or the thickness of the cover layers.

4 pages, 3 figures

References in corpus (9)

• Measurement of the Optical Conductivity of Graphene
• Optical Spectrum of MoS${}_2$: Many-body Effects and Diversity of Exciton States
• Quasiparticle band structures and optical properties of strained monolayer MoS2 and WS2
• Tuning of energy levels and optical properties of graphene quantum dots
• Experimental observation of plasmons in a graphene monolayer resting on a two-dimensional subwavelength silicon grating
• Tunable graphene-based polarizer
• Complete light absorption in graphene-metamaterial corrugated structures
• Enhancing the absorption of graphene in the terahertz range
• Gate-tunable nearly total terahertz absorption in graphene with resonant metal back reflector

Cited by in corpus (10)

• Enhanced Light-Matter Interaction in Two-Dimensional Transition Metal Dichalcogenides
• Near-unity light absorption in a monolayer WS2 van der Waals heterostructure cavity
• Dielectric Property of MoS2 Crystal in Terahertz and Visible Region
• Comparative study of electronic and magnetic properties of $M$Pc ($M$ = Fe, Co) molecules physisorbed on 2D MoS${}_2$ and graphene
• Strong Single- and Two-Photon Luminescence Enhancement by Nonradiative Energy Transfer across Layered Heterostructure
• The Role of Mobile Point Defects in Two-Dimensional Memristive Devices
• Broadband ultra-high transmission of terahertz radiation through monolayer MoS${}_2$
• Perfect light trapping in nanoscale thickness semiconductor films with resonant back reflector and spectrum-splitting structures
• Origin of selective enhancement of sharp defect emission lines in monolayer WSe${}_2$ on rough metal substrate
• Control of absorption of monolayer MoS${}_2$ thin-film transistor in one-dimensional defective photonic crystal