Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/106424
Title: Room temperature nanocavity laser with interlayer excitons in 2D heterostructures
Authors: Liu, Yuanda
Fang, Hanlin
Abdullah Rasmita
Zhou, Yu
Li, Juntao
Yu, Ting
Xiong, Qihua
Zheludev, Nikolay
Liu, Jin
Gao, Weibo
Keywords: DRNTU::Science::Physics
Room Temperature
Nanocavity Laser
Issue Date: 2019
Source: Liu, Y., Fang, H., Abdullah Rasmita, Zhou, Y., Li, J., Yu, T., . . . Gao, W. (2019). Room temperature nanocavity laser with interlayer excitons in 2D heterostructures. Science Advances, 5(4), eaav4506-. doi:10.1126/sciadv.aav4506
Series/Report no.: Science Advances
Abstract: Atomically thin layered two-dimensional (2D) materials have provided a rich library for both fundamental research and device applications. Bandgap engineering and controlled material response can be achieved from artificial heterostructures. Recently, excitonic lasers have been reported using transition metal dichalcogenides; however, the emission is still the intrinsic energy bandgap of the monolayers. Here, we report a room temperature interlayer exciton laser with MoS2/WSe2 heterostructures. The onset of lasing was identified by the distinct kink in the “L-L” curve and the noticeable spectral linewidth collapse. Different from visible emission of intralayer excitons in monolayer components, our laser works in the infrared range, which is fully compatible with the well-established technologies in silicon photonics. Long lifetime of interlayer excitons relaxes the requirement of the cavity quality factor by orders of magnitude. Room temperature interlayer exciton lasers might open new perspectives for developing coherent light sources with tailored optical properties on silicon photonics platforms.
URI: https://hdl.handle.net/10356/106424
http://hdl.handle.net/10220/48937
DOI: 10.1126/sciadv.aav4506
Rights: © 2019 The Author(s). Some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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