Gap Plasmon Enhanced Metasurface Third-Harmonic Generation in Transmission Geometry

Mohammadreza S. Nezami; Daehan Yoo; Ghazal Hajisalem; Sang Hyun Oh; Reuven Gordon

doi:10.1021/acsphotonics.6b00038

Gap Plasmon Enhanced Metasurface Third-Harmonic Generation in Transmission Geometry

Mohammadreza S. Nezami, Daehan Yoo, Ghazal Hajisalem, Sang Hyun Oh, Reuven Gordon

Electrical and Computer Engineering

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

32 Scopus citations

Abstract

The influence of gap plasmons in the third-harmonic generation of annular and H-shaped aperture arrays has been investigated. Surprisingly, the maximum third harmonic in the annular ring structures is not from the smallest gap, but rather appears for a gap of 14 nm. We interpret this result in terms of resonant plasmonic antenna design to match scattering and absorption cross sections. Unlike the annular aperture, continuous gold apertures, like the H-structure, achieve 0.45% conversion efficiency for 2 mW/μm² CW pump power of a 100 fs pulse, which is 9 times larger than rectangular apertures we have reported in the past. Nonlinear scattering theory has been used to estimate the transmitted third-harmonic signal and is in generally good agreement with the experimental results.

Original language	English (US)
Pages (from-to)	1461-1467
Number of pages	7
Journal	ACS Photonics
Volume	3
Issue number	8
DOIs	https://doi.org/10.1021/acsphotonics.6b00038
State	Published - Aug 17 2016

Bibliographical note

Funding Information:
The authors acknowledge funding from the NSERC Discovery Grants program.

Publisher Copyright:
© 2016 American Chemical Society.

Keywords

gap plasmon
metasurfaces
nonlinear scattering theory
third-harmonic generation

Access

10.1021/acsphotonics.6b00038

OpenUrl availability

Full text

Cite this

@article{351c049a0ac34d04844289b23cc9f14d,

title = "Gap Plasmon Enhanced Metasurface Third-Harmonic Generation in Transmission Geometry",

abstract = "The influence of gap plasmons in the third-harmonic generation of annular and H-shaped aperture arrays has been investigated. Surprisingly, the maximum third harmonic in the annular ring structures is not from the smallest gap, but rather appears for a gap of 14 nm. We interpret this result in terms of resonant plasmonic antenna design to match scattering and absorption cross sections. Unlike the annular aperture, continuous gold apertures, like the H-structure, achieve 0.45% conversion efficiency for 2 mW/μm2 CW pump power of a 100 fs pulse, which is 9 times larger than rectangular apertures we have reported in the past. Nonlinear scattering theory has been used to estimate the transmitted third-harmonic signal and is in generally good agreement with the experimental results.",

keywords = "gap plasmon, metasurfaces, nonlinear scattering theory, third-harmonic generation",

author = "Nezami, {Mohammadreza S.} and Daehan Yoo and Ghazal Hajisalem and Oh, {Sang Hyun} and Reuven Gordon",

note = "Funding Information: The authors acknowledge funding from the NSERC Discovery Grants program. Publisher Copyright: {\textcopyright} 2016 American Chemical Society.",

year = "2016",

month = aug,

day = "17",

doi = "10.1021/acsphotonics.6b00038",

language = "English (US)",

volume = "3",

pages = "1461--1467",

journal = "ACS Photonics",

issn = "2330-4022",

publisher = "American Chemical Society",

number = "8",

}

TY - JOUR

T1 - Gap Plasmon Enhanced Metasurface Third-Harmonic Generation in Transmission Geometry

AU - Nezami, Mohammadreza S.

AU - Yoo, Daehan

AU - Hajisalem, Ghazal

AU - Oh, Sang Hyun

AU - Gordon, Reuven

PY - 2016/8/17

Y1 - 2016/8/17

N2 - The influence of gap plasmons in the third-harmonic generation of annular and H-shaped aperture arrays has been investigated. Surprisingly, the maximum third harmonic in the annular ring structures is not from the smallest gap, but rather appears for a gap of 14 nm. We interpret this result in terms of resonant plasmonic antenna design to match scattering and absorption cross sections. Unlike the annular aperture, continuous gold apertures, like the H-structure, achieve 0.45% conversion efficiency for 2 mW/μm2 CW pump power of a 100 fs pulse, which is 9 times larger than rectangular apertures we have reported in the past. Nonlinear scattering theory has been used to estimate the transmitted third-harmonic signal and is in generally good agreement with the experimental results.

AB - The influence of gap plasmons in the third-harmonic generation of annular and H-shaped aperture arrays has been investigated. Surprisingly, the maximum third harmonic in the annular ring structures is not from the smallest gap, but rather appears for a gap of 14 nm. We interpret this result in terms of resonant plasmonic antenna design to match scattering and absorption cross sections. Unlike the annular aperture, continuous gold apertures, like the H-structure, achieve 0.45% conversion efficiency for 2 mW/μm2 CW pump power of a 100 fs pulse, which is 9 times larger than rectangular apertures we have reported in the past. Nonlinear scattering theory has been used to estimate the transmitted third-harmonic signal and is in generally good agreement with the experimental results.

KW - gap plasmon

KW - metasurfaces

KW - nonlinear scattering theory

KW - third-harmonic generation

UR - http://www.scopus.com/inward/record.url?scp=84983316516&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84983316516&partnerID=8YFLogxK

U2 - 10.1021/acsphotonics.6b00038

DO - 10.1021/acsphotonics.6b00038

M3 - Article

AN - SCOPUS:84983316516

SN - 2330-4022

VL - 3

SP - 1461

EP - 1467

JO - ACS Photonics

JF - ACS Photonics

IS - 8

ER -

Gap Plasmon Enhanced Metasurface Third-Harmonic Generation in Transmission Geometry

Abstract

Bibliographical note

Keywords

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this