Tunable terahertz slow light of a cavity-integrated guided-mode resonance grating

Chen Chen; Fei Yan; Ziyi Liu; Rui Gong; Ruoxing Wang; Li Li

doi:10.1364/JOSAB.423900

Tunable terahertz slow light of a cavity-integrated guided-mode resonance grating

Chen Chen
, Fei Yan
, Ziyi Liu
, Rui Gong
, Ruoxing Wang^*
, Li Li^*

^*Corresponding author for this work

Harbin Engineering University
Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

We present a dynamically tunable anomalous electromagnetic induced transparency (EIT) of a cavity-integrated metallic grating by the coupling of guided-mode resonance (GMR) with cavity-mode resonance (CMR) in the terahertz regime. The strong group slowing effect of terahertz waves results from the EIT mechanism under simultaneous excitation of GMR and CMR at a degenerate state. With the introduction of graphene as a functional layer overlying the grating structure, the enhanced group delay can be achievable beyond 6.1 ps with stable operation frequency and signal efficiency by tuning the graphene Fermi level. The work could provide an efficient scheme to manipulate the group velocity of terahertz signals.

Original language	English
Pages (from-to)	1710-1716
Number of pages	7
Journal	Journal of the Optical Society of America B: Optical Physics
Volume	38
Issue number	5
DOIs	https://doi.org/10.1364/JOSAB.423900
State	Published - 1 May 2021
Externally published	Yes

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title = "Tunable terahertz slow light of a cavity-integrated guided-mode resonance grating",

abstract = "We present a dynamically tunable anomalous electromagnetic induced transparency (EIT) of a cavity-integrated metallic grating by the coupling of guided-mode resonance (GMR) with cavity-mode resonance (CMR) in the terahertz regime. The strong group slowing effect of terahertz waves results from the EIT mechanism under simultaneous excitation of GMR and CMR at a degenerate state. With the introduction of graphene as a functional layer overlying the grating structure, the enhanced group delay can be achievable beyond 6.1 ps with stable operation frequency and signal efficiency by tuning the graphene Fermi level. The work could provide an efficient scheme to manipulate the group velocity of terahertz signals.",

author = "Chen Chen and Fei Yan and Ziyi Liu and Rui Gong and Ruoxing Wang and Li Li",

note = "Publisher Copyright: {\textcopyright} 2021 Optical Society of America",

year = "2021",

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doi = "10.1364/JOSAB.423900",

language = "英语",

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T1 - Tunable terahertz slow light of a cavity-integrated guided-mode resonance grating

AU - Chen, Chen

AU - Yan, Fei

AU - Liu, Ziyi

AU - Gong, Rui

AU - Wang, Ruoxing

AU - Li, Li

PY - 2021/5/1

Y1 - 2021/5/1

N2 - We present a dynamically tunable anomalous electromagnetic induced transparency (EIT) of a cavity-integrated metallic grating by the coupling of guided-mode resonance (GMR) with cavity-mode resonance (CMR) in the terahertz regime. The strong group slowing effect of terahertz waves results from the EIT mechanism under simultaneous excitation of GMR and CMR at a degenerate state. With the introduction of graphene as a functional layer overlying the grating structure, the enhanced group delay can be achievable beyond 6.1 ps with stable operation frequency and signal efficiency by tuning the graphene Fermi level. The work could provide an efficient scheme to manipulate the group velocity of terahertz signals.

AB - We present a dynamically tunable anomalous electromagnetic induced transparency (EIT) of a cavity-integrated metallic grating by the coupling of guided-mode resonance (GMR) with cavity-mode resonance (CMR) in the terahertz regime. The strong group slowing effect of terahertz waves results from the EIT mechanism under simultaneous excitation of GMR and CMR at a degenerate state. With the introduction of graphene as a functional layer overlying the grating structure, the enhanced group delay can be achievable beyond 6.1 ps with stable operation frequency and signal efficiency by tuning the graphene Fermi level. The work could provide an efficient scheme to manipulate the group velocity of terahertz signals.

UR - https://www.scopus.com/pages/publications/85105304221

U2 - 10.1364/JOSAB.423900

DO - 10.1364/JOSAB.423900

M3 - 文章

AN - SCOPUS:85105304221

SN - 0740-3224

VL - 38

SP - 1710

EP - 1716

JO - Journal of the Optical Society of America B: Optical Physics

JF - Journal of the Optical Society of America B: Optical Physics

IS - 5

ER -

Tunable terahertz slow light of a cavity-integrated guided-mode resonance grating

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