Controlling the spontaneous emission rate of monolayer MoS[subscript 2] in a photonic crystal nanocavity
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Author(s)
Gan, Xuetao
Gao, Yuanda
Fai Mak, Kin
Yao, Xinwen
Shiue, Ren-Jye
van der Zande, Arend
Trusheim, Matthew E.
Hatami, Fariba
Heinz, Tony F.
Hone, James
Date Issued
November 2013
Journal
Applied Physics Letters
Publisher
American Institute of Physics (AIP)
Citation
Gan, Xuetao, Yuanda Gao, Kin Fai Mak, Xinwen Yao, Ren-Jye Shiue, Arend van der Zande, Matthew E. Trusheim, et al. “Controlling the Spontaneous Emission Rate of Monolayer MoS2 in a Photonic Crystal Nanocavity.” Appl. Phys. Lett. 103, no. 18 (2013): 181119.
Version
Final published version
Abstract
We report on controlling the spontaneous emission (SE) rate of a molybdenum disulfide (MoS[subscript 2]) monolayer coupled with a planar photonic crystal (PPC) nanocavity. Spatially resolved photoluminescence (PL) mapping shows strong variations of emission when the MoS[subscript 2] monolayer is on the PPC cavity, on the PPC lattice, on the air gap, and on the unpatterned gallium phosphide substrate. Polarization dependences of the cavity-coupled MoS[subscript 2] emission show a more than 5 times stronger extracted PL intensity than the un-coupled emission, which indicates an underlying cavity mode Purcell enhancement of the MoS[subscript 2] SE rate exceeding a factor of 70.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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DOI of Published Version
https://doi.org/10.1063/1.4826679
