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Ultrafast plasmonic lasing from a metal/semiconductor interface

2020-09-07

Author(s): Wang, J (Wang, Jian); Jia, XH (Jia, Xiaohao); Wang, ZT (Wang, Zhaotong); Liu, WL (Liu, Weilong); Zhu, XJ (Zhu, Xiaojun); Huang, ZT (Huang, Zhitao); Yu, HC (Yu, Haichao); Yang, QX (Yang, Qingxin); Sun, Y (Sun, Ye); Wang, ZJ (Wang, Zhijie); Qu, SC (Qu, Shengchun); Lin, J (Lin, Jie); Jin, P (Jin, Peng); Wang, ZG (Wang, Zhanguo)

Source: NANOSCALE Volume: 12 Issue: 31 Pages: 16403-16408 DOI: 10.1039/d0nr02330b Published: AUG 21 2020

Abstract: To date, plasmonic nanowire lasers mostly adopt hybrid plasmonic waveguides, while there is a lack of study in terms of the confinement effect and the corresponding ultrafast dynamics of nonhybridized plasmonic lasers. Here, we report ultrafast plasmonic nanowire lasers composed of a single CH3NH3PbBr3 nanowire on a silver film without any insulating layer at room temperature. The non-hybridized plasmonic nanowire lasers exhibit ultrafast lasing dynamics with around 1.9 ps decay rate and 1 ps peak response time. Such values are among the best ones ever reported. Interestingly, the threshold of the non-hybridized plasmonic nanowire lasers is in the same order as that of their hybrid counterparts. The low threshold is due to the ultra-flat single-crystal silver films and high-quality single-crystal perovskite nanowires. The nonhybridized plasmonic lasing in CH3NH3PbBr3 nanowires originates from the stimulated emission of an electron-hole plasma based on our experiments. This work deepens the understanding of nonhybridized plasmonic lasers and paves the way to design electric pump plasmonic lasers by getting rid of insulating layers.

Accession Number: WOS:000560178300022

PubMed ID: 32525164

Author Identifiers:

Author        Web of Science ResearcherID        ORCID Number

Sun, Ye         B-9395-2014         0000-0002-5795-6981

ISSN: 2040-3364

eISSN: 2040-3372

Full Text: https://pubs.rsc.org/en/content/articlelanding/2020/NR/D0NR02330B#!divAbstract



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