Nonlinear Circular Dichroism in Mie-Resonant Nanoparticle Dimers

Kristina Frizyuk; Elizaveta Melik-Gaykazyan; Jae Hyuck Choi; Mihail I. Petrov; Hong Gyu Park; Yuri Kivshar

doi:10.1021/acs.nanolett.1c01025

Nonlinear Circular Dichroism in Mie-Resonant Nanoparticle Dimers

Kristina Frizyuk, Elizaveta Melik-Gaykazyan, Jae Hyuck Choi, Mihail I. Petrov, Hong Gyu Park, Yuri Kivshar

Department of Physics

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

35 Citations (Scopus)

Abstract

We studied the nonlinear response of a dimer composed of two identical Mie-resonant dielectric nanoparticles illuminated normally by a circularly polarized light. We developed a general theory describing hybridization of multipolar modes of the coupled nanoparticles and reveal nonvanishing nonlinear circular dichroism (CD) in the second-harmonic generation (SHG) signal enhanced by the multipolar resonances in the dimer, provided its axis is oriented under an angle to the crystalline lattice of the dielectric material. We supported our multipolar hybridization theory by experimental results obtained for the AlGaAs dimers placed on an engineered substrate.

Original language	English
Pages (from-to)	4381-4387
Number of pages	7
Journal	Nano Letters
Volume	21
Issue number	10
DOIs	https://doi.org/10.1021/acs.nanolett.1c01025
Publication status	Published - 2021 May 26

Bibliographical note

Publisher Copyright:
©

Keywords

Mie resonance
circular dichroism
hybridization
nanoparticle
second-harmonic generation

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/acs.nanolett.1c01025

Cite this

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abstract = "We studied the nonlinear response of a dimer composed of two identical Mie-resonant dielectric nanoparticles illuminated normally by a circularly polarized light. We developed a general theory describing hybridization of multipolar modes of the coupled nanoparticles and reveal nonvanishing nonlinear circular dichroism (CD) in the second-harmonic generation (SHG) signal enhanced by the multipolar resonances in the dimer, provided its axis is oriented under an angle to the crystalline lattice of the dielectric material. We supported our multipolar hybridization theory by experimental results obtained for the AlGaAs dimers placed on an engineered substrate.",

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AU - Frizyuk, Kristina

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AU - Choi, Jae Hyuck

AU - Petrov, Mihail I.

AU - Park, Hong Gyu

AU - Kivshar, Yuri

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PY - 2021/5/26

Y1 - 2021/5/26

N2 - We studied the nonlinear response of a dimer composed of two identical Mie-resonant dielectric nanoparticles illuminated normally by a circularly polarized light. We developed a general theory describing hybridization of multipolar modes of the coupled nanoparticles and reveal nonvanishing nonlinear circular dichroism (CD) in the second-harmonic generation (SHG) signal enhanced by the multipolar resonances in the dimer, provided its axis is oriented under an angle to the crystalline lattice of the dielectric material. We supported our multipolar hybridization theory by experimental results obtained for the AlGaAs dimers placed on an engineered substrate.

AB - We studied the nonlinear response of a dimer composed of two identical Mie-resonant dielectric nanoparticles illuminated normally by a circularly polarized light. We developed a general theory describing hybridization of multipolar modes of the coupled nanoparticles and reveal nonvanishing nonlinear circular dichroism (CD) in the second-harmonic generation (SHG) signal enhanced by the multipolar resonances in the dimer, provided its axis is oriented under an angle to the crystalline lattice of the dielectric material. We supported our multipolar hybridization theory by experimental results obtained for the AlGaAs dimers placed on an engineered substrate.

KW - Mie resonance

KW - circular dichroism

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KW - nanoparticle

KW - second-harmonic generation

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Nonlinear Circular Dichroism in Mie-Resonant Nanoparticle Dimers

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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