Remote Dual-Cavity Enhanced Second Harmonic Generation in a Hybrid Plasmonic Waveguide

Junjun Shi; Xiaobo He; Wen Chen; Yang Li; Meng Kang; Yangjian Cai; Hongxing Xu

doi:10.1021/acs.nanolett.1c03824

Remote Dual-Cavity Enhanced Second Harmonic Generation in a Hybrid Plasmonic Waveguide

Junjun Shi
, Xiaobo He^*
, Wen Chen
, Yang Li
, Meng Kang
, Yangjian Cai^*
, Hongxing Xu^*

^*Corresponding author for this work

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

24 Scopus citations

Abstract

On-chip nanoscale optical platforms capable of efficient second harmonic generation (SHG) are highly desired for optical sensing, subwavelength coherent sources, and quantum photonic devices. Here, we develop a remotely excited dual cavity resonance scheme to achieve significantly enhanced SHG in a CdSe nanobelt on Au film hybrid waveguide system. The SHG emission with superior efficiency originates from counter-propagating plasmonic modes interference in a horizontal Fabry-Pérot (FP) cavity enabled by remote excitation of propagating surface plasmons, which is further enhanced through a vertical FP cavity. With this effective cooperation of hybrid plasmon modes and FP cavity modes, 2 orders of magnitude enhancement of the conversion efficiency (3.5 × 10^–4 W^–1) is achieved compared to the off-resonance case. Our design provides new insight into the development of a multifunctional hybrid plasmonic device toward on-chip nonlinear nanophotonic applications.

Original language	English
Pages (from-to)	688-694
Number of pages	7
Journal	Nano Letters
Volume	22
Issue number	2
DOIs	https://doi.org/10.1021/acs.nanolett.1c03824
State	Published - 26 Jan 2022
Externally published	Yes

Keywords

Fabry-Pérot cavities
Plasmonics
integrated photonics devices
multiple resonances
second harmonic generation

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10.1021/acs.nanolett.1c03824

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@article{23d4b68dd0f34d328cfb5292d7ebe49c,

title = "Remote Dual-Cavity Enhanced Second Harmonic Generation in a Hybrid Plasmonic Waveguide",

abstract = "On-chip nanoscale optical platforms capable of efficient second harmonic generation (SHG) are highly desired for optical sensing, subwavelength coherent sources, and quantum photonic devices. Here, we develop a remotely excited dual cavity resonance scheme to achieve significantly enhanced SHG in a CdSe nanobelt on Au film hybrid waveguide system. The SHG emission with superior efficiency originates from counter-propagating plasmonic modes interference in a horizontal Fabry-P{\'e}rot (FP) cavity enabled by remote excitation of propagating surface plasmons, which is further enhanced through a vertical FP cavity. With this effective cooperation of hybrid plasmon modes and FP cavity modes, 2 orders of magnitude enhancement of the conversion efficiency (3.5 × 10–4 W–1) is achieved compared to the off-resonance case. Our design provides new insight into the development of a multifunctional hybrid plasmonic device toward on-chip nonlinear nanophotonic applications.",

keywords = "Fabry-P{\'e}rot cavities, Plasmonics, integrated photonics devices, multiple resonances, second harmonic generation",

author = "Junjun Shi and Xiaobo He and Wen Chen and Yang Li and Meng Kang and Yangjian Cai and Hongxing Xu",

note = "Publisher Copyright: {\textcopyright} 2022 American Chemical Society",

year = "2022",

month = jan,

day = "26",

doi = "10.1021/acs.nanolett.1c03824",

language = "英语",

volume = "22",

pages = "688--694",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "2",

}

TY - JOUR

T1 - Remote Dual-Cavity Enhanced Second Harmonic Generation in a Hybrid Plasmonic Waveguide

AU - Shi, Junjun

AU - He, Xiaobo

AU - Chen, Wen

AU - Li, Yang

AU - Kang, Meng

AU - Cai, Yangjian

AU - Xu, Hongxing

PY - 2022/1/26

Y1 - 2022/1/26

N2 - On-chip nanoscale optical platforms capable of efficient second harmonic generation (SHG) are highly desired for optical sensing, subwavelength coherent sources, and quantum photonic devices. Here, we develop a remotely excited dual cavity resonance scheme to achieve significantly enhanced SHG in a CdSe nanobelt on Au film hybrid waveguide system. The SHG emission with superior efficiency originates from counter-propagating plasmonic modes interference in a horizontal Fabry-Pérot (FP) cavity enabled by remote excitation of propagating surface plasmons, which is further enhanced through a vertical FP cavity. With this effective cooperation of hybrid plasmon modes and FP cavity modes, 2 orders of magnitude enhancement of the conversion efficiency (3.5 × 10–4 W–1) is achieved compared to the off-resonance case. Our design provides new insight into the development of a multifunctional hybrid plasmonic device toward on-chip nonlinear nanophotonic applications.

AB - On-chip nanoscale optical platforms capable of efficient second harmonic generation (SHG) are highly desired for optical sensing, subwavelength coherent sources, and quantum photonic devices. Here, we develop a remotely excited dual cavity resonance scheme to achieve significantly enhanced SHG in a CdSe nanobelt on Au film hybrid waveguide system. The SHG emission with superior efficiency originates from counter-propagating plasmonic modes interference in a horizontal Fabry-Pérot (FP) cavity enabled by remote excitation of propagating surface plasmons, which is further enhanced through a vertical FP cavity. With this effective cooperation of hybrid plasmon modes and FP cavity modes, 2 orders of magnitude enhancement of the conversion efficiency (3.5 × 10–4 W–1) is achieved compared to the off-resonance case. Our design provides new insight into the development of a multifunctional hybrid plasmonic device toward on-chip nonlinear nanophotonic applications.

KW - Fabry-Pérot cavities

KW - Plasmonics

KW - integrated photonics devices

KW - multiple resonances

KW - second harmonic generation

UR - https://www.scopus.com/pages/publications/85123879248

U2 - 10.1021/acs.nanolett.1c03824

DO - 10.1021/acs.nanolett.1c03824

M3 - 文章

C2 - 35025516

AN - SCOPUS:85123879248

SN - 1530-6984

VL - 22

SP - 688

EP - 694

JO - Nano Letters

JF - Nano Letters

IS - 2

ER -

Remote Dual-Cavity Enhanced Second Harmonic Generation in a Hybrid Plasmonic Waveguide

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Keywords

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