Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/147822
Title: Terahertz emission from localized modes in one-dimensional disordered systems [Invited]
Authors: Zeng, Yongquan
Liang, Guozhen
Qiang, Bo
Meng, Bo
Liang, Hou Kun
Mansha, Shampy
Li, Jianping
Li, Zhaohui
Li, Lianhe
Davies, Alexander Giles
Linfield, Edmund Harold
Zhang, Ying
Chong, Yidong
Wang, Qi Jie
Keywords: Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Issue Date: 2018
Source: Zeng, Y., Liang, G., Qiang, B., Meng, B., Liang, H. K., Mansha, S., Li, J., Li, Z., Li, L., Davies, A. G., Linfield, E. H., Zhang, Y., Chong, Y. & Wang, Q. J. (2018). Terahertz emission from localized modes in one-dimensional disordered systems [Invited]. Photonics Research, 6(2), 117-122. https://dx.doi.org/10.1364/PRJ.6.000117
Project: Ministry of Education—Singapore (MOE) (MOE 2016-T2-1-128)
Agency for Science, Technology and Research (A*STAR) (1426500050)
National Research Foundation Singapore (NRF) (NRF-CRP18-2017-02)
Engineering and Physical Sciences Research Council (EPSRC) (EP/P021859/1)
Royal Society and Wolfson Foundation
Journal: Photonics Research
Abstract: We demonstrate terahertz (THz) frequency laser emission around 3.2 THz from localized modes in one-dimensional disordered grating systems. The disordered structures are patterned on top of the double-metal waveguide of a THz quantum cascade laser. Multiple emission peaks are observed within a frequency range corresponding to the bandgap of a periodic counterpart with no disorder, indicating the presence of mode localization aided by Bragg scattering. Simulations and experimental measurements provide strong evidence for the spatial localization of the THz laser modes.
URI: https://hdl.handle.net/10356/147822
ISSN: 2327-9125
DOI: 10.1364/PRJ.6.000117
Rights: © 2018 Chinese Laser Press. This is an open-access article distributed under the terms of the Creative Commons Attribution License.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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