Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/89029
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Title: A low-threshold miniaturized plasmonic nanowire laser with high-reflectivity metal mirrors
Authors: Zheng, J
Yan, X
Wei, W 
Wu, C
Sibirev, N
Zhang, X
Ren, X
Issue Date: 2020
Source: Nanomaterials, 2020, v. 10, no. 10, 1928, p. 1-10
Abstract: A reflectivity-enhanced hybrid plasmonic GaAs/AlGaAs core-shell nanowire laser is proposed and studied by 3D finite-difference time-domain simulations. The results demonstrate that by introducing thin metal mirrors at both ends, the end facet reflectivity of nanowire is increased by 30–140%, resulting in a much stronger optical feedback. Due to the enhanced interaction between the surface charge oscillation and light, the electric field intensity inside the dielectric gap layer increases, resulting in a much lower threshold gain. For a small diameter in the range of 100–150 nm, the threshold gain is significantly reduced to 60–80% that of nanowire without mirrors. Moreover, as the mode energy is mainly concentrated in the gap between the nanowire and metal substrate, the output power maintains >60% that of nanowire without mirrors in the diameter range of 100–150 nm. The low-threshold miniaturized plasmonic nanowire laser with simple processing technology is promising for low-consumption ultra-compact optoelectronic integrated circuits and on-chip communications.
Keywords: GaAs
Nanolaser
Plasmonic nanowire laser
Reflectivity-Enhanced
Publisher: Molecular Diversity Preservation International (MDPI)
Journal: Nanomaterials 
ISSN: 2079-4991
DOI: 10.3390/nano10101928
Rights: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
The following publication Zheng J, Yan X, Wei W, Wu C, Sibirev N, Zhang X, Ren X. A Low-Threshold Miniaturized Plasmonic Nanowire Laser with High-Reflectivity Metal Mirrors. Nanomaterials. 2020; 10(10):1928, is available at https://doi.org/10.3390/nano10101928
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