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Title: Mid-infrared photonics and optoelectronics in 2D materials
Authors: Liang, Guozhen
Yu, Xuechao
Hu, Xiaonan
Qiang, Bo
Wang, Chongwu
Wang, Qi Jie
Keywords: Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Issue Date: 2021
Source: Liang, G., Yu, X., Hu, X., Qiang, B., Wang, C. & Wang, Q. J. (2021). Mid-infrared photonics and optoelectronics in 2D materials. Materials Today, 51, 294-316.
Project: MOE2018-T2-1-176
Journal: Materials Today
Abstract: With intriguing properties that are different from the conventional bulk materials, two-dimensional (2D) materials have attracted numerous and widespread research interests, including its applications in photonics and optoelectronics. Devices based on 2D materials have been demonstrated in a wide spectral range, from the ultraviolet to the terahertz, and the microwave wavelength range. The mid-infrared (MIR) region (about 2–20 μm) bears a particular scientific and technological significance because, for instance, many molecules have their spectral fingerprints and there are atmosphere transparent windows in this region. Nevertheless, the MIR region remains underdeveloped compared to the visible and the near-infrared telecommunication regimes, mainly due to the lack of suitable materials, such as narrow bandgap materials, and proper photonic designs for building high performance optoelectronic devices in this wavelength regime. Therefore, researchers have been exploring the possibility and opportunity of 2D materials to fill up the gap. Here, we review the key recent developments of 2D materials in the MIR photonic and optoelectronic applications, including photodetection, light modulation, surface plasmon polaritons, phonon polaritons, and their nonlinearities and provide an outlook on the challenges and opportunities that lie ahead for MIR optoelectronic research fields with 2D materials.
ISSN: 1369-7021
DOI: 10.1016/j.mattod.2021.09.021
Schools: School of Electrical and Electronic Engineering 
School of Physical and Mathematical Sciences 
Research Centres: Centre for OptoElectronics and Biophotonics (OPTIMUS) 
Centre for Disruptive Photonic Technologies (CDPT) 
The Photonics Institute 
Rights: © 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
SPMS Journal Articles

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