Enhanced second harmonic generation from coupled asymmetric plasmonic metal nanostructures

Bilge Yildiz; Mehmet Emre Tasgin; Musa Kurtulus Abak; Sahin Coskun; Husnu Emrah Unalan; Alpan Bek

doi:10.1088/2040-8978/17/12/125005

Enhanced second harmonic generation from coupled asymmetric plasmonic metal nanostructures

Bilge Yildiz, Mehmet Emre Tasgin, Musa Kurtulus Abak, Sahin Coskun, Husnu Emrah Unalan, Alpan Bek

Not published at VTT

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

Abstract

We experimentally demonstrate that two coupled metal nanostructures (MNSs), a silver nanowire and bipyramid, can produce ∼30 times enhanced second harmonic generation compared to the particles alone. We develop a simple theoretical model, presenting the path interference effects in the nonlinear response of coupled MNSs. We show that the reason for such an enhancement can be the occurrence of a Fano resonance due to the coupling of the converter MNS to the long-lived mode of the attached MNS.

Original language	English
Journal	Journal of Optics
Volume	17
Issue number	12
DOIs	https://doi.org/10.1088/2040-8978/17/12/125005
Publication status	Published - 2015
MoE publication type	A1 Journal article-refereed

Funding

A.B. acknowledges support from TUBITAK Grants No. 113F239, 113M931, 113F375, 114E105 and METU grant No. BAP-01-05-2015-003. M.E.T. acknowledges support from TUBITAK Grants No. 112T927 and No. 114F170.

Keywords

Fano resonance
second harmonic generation
plasmons
nonlinear optics
enhancement

Access to Document

10.1088/2040-8978/17/12/125005

Cite this

@article{f77d635a074d4a36a7cdb216e5396957,

title = "Enhanced second harmonic generation from coupled asymmetric plasmonic metal nanostructures",

abstract = "We experimentally demonstrate that two coupled metal nanostructures (MNSs), a silver nanowire and bipyramid, can produce ∼30 times enhanced second harmonic generation compared to the particles alone. We develop a simple theoretical model, presenting the path interference effects in the nonlinear response of coupled MNSs. We show that the reason for such an enhancement can be the occurrence of a Fano resonance due to the coupling of the converter MNS to the long-lived mode of the attached MNS.",

keywords = "Fano resonance, second harmonic generation, plasmons, nonlinear optics, enhancement",

author = "Bilge Yildiz and Tasgin, {Mehmet Emre} and Abak, {Musa Kurtulus} and Sahin Coskun and Unalan, {Husnu Emrah} and Alpan Bek",

year = "2015",

doi = "10.1088/2040-8978/17/12/125005",

language = "English",

volume = "17",

journal = "Journal of Optics",

issn = "2040-8978",

publisher = "Institute of Physics IOP",

number = "12",

}

TY - JOUR

T1 - Enhanced second harmonic generation from coupled asymmetric plasmonic metal nanostructures

AU - Yildiz, Bilge

AU - Tasgin, Mehmet Emre

AU - Abak, Musa Kurtulus

AU - Coskun, Sahin

AU - Unalan, Husnu Emrah

AU - Bek, Alpan

PY - 2015

Y1 - 2015

N2 - We experimentally demonstrate that two coupled metal nanostructures (MNSs), a silver nanowire and bipyramid, can produce ∼30 times enhanced second harmonic generation compared to the particles alone. We develop a simple theoretical model, presenting the path interference effects in the nonlinear response of coupled MNSs. We show that the reason for such an enhancement can be the occurrence of a Fano resonance due to the coupling of the converter MNS to the long-lived mode of the attached MNS.

AB - We experimentally demonstrate that two coupled metal nanostructures (MNSs), a silver nanowire and bipyramid, can produce ∼30 times enhanced second harmonic generation compared to the particles alone. We develop a simple theoretical model, presenting the path interference effects in the nonlinear response of coupled MNSs. We show that the reason for such an enhancement can be the occurrence of a Fano resonance due to the coupling of the converter MNS to the long-lived mode of the attached MNS.

KW - Fano resonance

KW - second harmonic generation

KW - plasmons

KW - nonlinear optics

KW - enhancement

UR - http://iopscience.iop.org/article/10.1088/2040-8978/17/12/125005/meta

U2 - 10.1088/2040-8978/17/12/125005

DO - 10.1088/2040-8978/17/12/125005

M3 - Article

SN - 2040-8978

VL - 17

JO - Journal of Optics

JF - Journal of Optics

IS - 12

ER -

Enhanced second harmonic generation from coupled asymmetric plasmonic metal nanostructures

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this