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Title: White-light driven resonant emission from a monolayer semiconductor
Authors: Shang, Jingzhi
Wu, Lishu
Feng, Shun
Chen, Yu
Zhang, Hongbo
Cong, Chunxiao
Huang, Wei
Yu, Ting
Keywords: Science::Physics::Atomic physics::Solid state physics
Science::Physics::Optics and light
Issue Date: 2022
Source: Shang, J., Wu, L., Feng, S., Chen, Y., Zhang, H., Cong, C., Huang, W. & Yu, T. (2022). White-light driven resonant emission from a monolayer semiconductor. Advanced Materials.
Project: MOE 2019-T2-1-044
Journal: Advanced Materials
Abstract: Resonant emission in photonic structures is very useful to construct all-photonic circuits for optical interconnects and quantum computing. Optical generation of most resonant emitting modes in photonic structures has been obtained by coherent pumping rather than incoherent illumination. Particularly, the development of white-light or even solar-powered on-chip light sources remains challenging but is very attractive in view of the much facile availability of these incoherent excitation sources. Here the net resonant emission from monolayer semiconductor has been demonstrated under the simulated solar illumination by a white light-emitting diode. The device is formed by embedding a two-dimensional gain medium into a planar microcavity on a silicon wafer, which is compatible with the prevailing on-chip photonic technology. Coherent and white-light excitation sources are respectively selected for optical pumping, where the output light in two cases exhibits the well-consistent resonant wavelength, linewidth, polarization, location, and Gaussian-beam profile. The fundamental TEM00 mode behaves a doublet emission, resulting from anisotropy-induced nondegenerate states with orthogonal polarizations. The extraordinary spectral flipping is attributed to the competitive interplay of resonant absorption and emission. This work paves a way towards white-light or solar-powered state-of-the-art photonic applications at the chip scale. This article is protected by copyright. All rights reserved.
ISSN: 0935-9648
DOI: 10.1002/adma.202103527
Schools: School of Physical and Mathematical Sciences 
Rights: This is the peer reviewed version of the following article: Shang, J., Wu, L., Feng, S., Chen, Y., Zhang, H., Cong, C., Huang, W. & Yu, T. (2022). White-light driven resonant emission from a monolayer semiconductor. Advanced Materials, which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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