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Room temperature nanocavity laser with interlayer excitons in 2D heterostructures

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 transi...

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Autores principales: Liu, Yuanda, Fang, Hanlin, Rasmita, Abdullah, Zhou, Yu, Li, Juntao, Yu, Ting, Xiong, Qihua, Zheludev, Nikolay, Liu, Jin, Gao, Weibo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6486267/
https://www.ncbi.nlm.nih.gov/pubmed/31032409
http://dx.doi.org/10.1126/sciadv.aav4506
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author Liu, Yuanda
Fang, Hanlin
Rasmita, Abdullah
Zhou, Yu
Li, Juntao
Yu, Ting
Xiong, Qihua
Zheludev, Nikolay
Liu, Jin
Gao, Weibo
author_facet Liu, Yuanda
Fang, Hanlin
Rasmita, Abdullah
Zhou, Yu
Li, Juntao
Yu, Ting
Xiong, Qihua
Zheludev, Nikolay
Liu, Jin
Gao, Weibo
author_sort Liu, Yuanda
collection PubMed
description 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 MoS(2)/WSe(2) 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.
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spelling pubmed-64862672019-04-27 Room temperature nanocavity laser with interlayer excitons in 2D heterostructures Liu, Yuanda Fang, Hanlin Rasmita, Abdullah Zhou, Yu Li, Juntao Yu, Ting Xiong, Qihua Zheludev, Nikolay Liu, Jin Gao, Weibo Sci Adv Research Articles 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 MoS(2)/WSe(2) 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. American Association for the Advancement of Science 2019-04-26 /pmc/articles/PMC6486267/ /pubmed/31032409 http://dx.doi.org/10.1126/sciadv.aav4506 Text en Copyright © 2019 The Authors, 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). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Research Articles
Liu, Yuanda
Fang, Hanlin
Rasmita, Abdullah
Zhou, Yu
Li, Juntao
Yu, Ting
Xiong, Qihua
Zheludev, Nikolay
Liu, Jin
Gao, Weibo
Room temperature nanocavity laser with interlayer excitons in 2D heterostructures
title Room temperature nanocavity laser with interlayer excitons in 2D heterostructures
title_full Room temperature nanocavity laser with interlayer excitons in 2D heterostructures
title_fullStr Room temperature nanocavity laser with interlayer excitons in 2D heterostructures
title_full_unstemmed Room temperature nanocavity laser with interlayer excitons in 2D heterostructures
title_short Room temperature nanocavity laser with interlayer excitons in 2D heterostructures
title_sort room temperature nanocavity laser with interlayer excitons in 2d heterostructures
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6486267/
https://www.ncbi.nlm.nih.gov/pubmed/31032409
http://dx.doi.org/10.1126/sciadv.aav4506
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