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Indefinite Graphene Nanocavities with Ultra-Compressed Mode Volumes

Authors :
Chunchao Wen
Zongyang Wang
Jipeng Xu
Wei Xu
Wei Liu
Zhihong Zhu
Jianfa Zhang
Shiqiao Qin
Source :
Nanomaterials, Vol 12, Iss 22, p 4004 (2022)
Publication Year :
2022
Publisher :
MDPI AG, 2022.

Abstract

Explorations of indefinite nanocavities have attracted surging interest in the past few years as such cavities enable light confinement to exceptionally small dimensions, relying on the hyperbolic dispersion of their consisting medium. Here, we propose and study indefinite graphene nanocavities, which support ultra-compressed mode volumes with confinement factors up to 109. Moreover, the nanocavities we propose manifest anomalous scaling laws of resonances and can be effectively excited from the far field. The indefinite graphene cavities, based on low dimensional materials, present a novel rout to squeeze light down to the nanoscale, rendering a more versatile platform for investigations into ultra-strong light–matter interactions at mid-infrared to terahertz spectral ranges.

Details

Language :
English
ISSN :
20794991
Volume :
12
Issue :
22
Database :
Directory of Open Access Journals
Journal :
Nanomaterials
Publication Type :
Academic Journal
Accession number :
edsdoj.0e799e3d84f4d188cf743ef2fa40d02
Document Type :
article
Full Text :
https://doi.org/10.3390/nano12224004