Controlling the spontaneous emission rate of monolayer MoS[subscript 2] in a photonic crystal nanocavity

Author(s)
Gan, Xuetao; Gao, Yuanda; Fai Mak, Kin; Yao, Xinwen; Shiue, Ren-Jye; ... Show more
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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.
Date issued
2013-11
URI
http://hdl.handle.net/1721.1/86153
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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
ISSN
00036951
1077-3118
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