Far-Field Spectroscopy and Near-Field Optical Imaging of Coupled Plasmon-Phonon Polaritons in 2D van der Waals Heterostructures

Advanced Materials
Xiaoxia YangQing Dai

Abstract

A new hybridized plasmon-phonon polariton mode in graphene/h-BN van der Waals heterostructures is presented, featuring the ultrahigh field confinement characteristic of the graphene plasmon and the long lifetime property of the h-BN transverse optical phonon. This enables an ultralong hybrid plasmon lifetime of up to 1.6 ps (with ultrahigh mode confinement up to >l0(2)/7000 and ultrasmall group velocity down to 0.001c, where c is the speed of light in vacuum), superior to any localized plasmon ever demonstrated.

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Citations

Mar 25, 2018·Advanced Materials·Xiaoxia YangQing Dai
Mar 27, 2018·Nanoscale·Xiaoling TianJianing Chen
May 14, 2016·Chemical Society Reviews·Qunhong WengDmitri Golberg
May 4, 2018·Nature Communications·Alexander M DubrovkinQi Jie Wang
Oct 11, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Yan LiN A W Holzwarth
Sep 15, 2020·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Zhang YaxinYang Ziqiang
Mar 27, 2018·Advanced Materials·Anton AutereZhipei Sun
Sep 1, 2018·Light, Science & Applications·Ze-Bo ZhengNing-Sheng Xu
Dec 15, 2016·Nano Letters·Z FeiD N Basov
Sep 26, 2021·Advanced Materials·Soumyabrata RoyPulickel M Ajayan
Jan 6, 2022·Nanoscale·Melissa E KingMichael B Ross
Dec 30, 2021·Advanced Materials·Jiahua DuanPablo Alonso-González

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