Multiply-resonant second-harmonic generation using surface lattice resonances in aluminum metasurfaces

Timo Stolt; Anna Vesala; Heikki Rekola; Petri Karvinen; Tommi K. Hakala; Mikko J. Huttunen

doi:10.1364/OE.449198

Multiply-resonant second-harmonic generation using surface lattice resonances in aluminum metasurfaces

Timo Stolt, Anna Vesala, Heikki Rekola, Petri Karvinen, Tommi K. Hakala, Mikko J. Huttunen

Physics

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Abstract

Nonlinear metamaterials show potential for realizing flat nonlinear optical devices but are generally lacking in terms of achievable conversion efficiencies. Recent work has focused on enhancing nonlinear processes by utilizing high quality factor resonances, such as collective responses known as surface lattice resonances (SLRs) taking place in periodic metal nanoparticle arrays. Here, we investigate how the dispersive nature of SLRs affects the nonlinear responses of SLR-supporting metasurfaces. Particularly, we measure second-harmonic generation from aluminum nanoparticle arrays and demonstrate that by tilting the sample along two orthogonal directions, the sample can be made multiply-resonant for several pump and second-harmonic signal wavelength combinations. Characterized metasurfaces are estimated to exhibit a second-order susceptibility value of 0.40 pm/V, demonstrating aluminum as a potential material for nonlinear metasurfaces.

Original language	English
Pages (from-to)	3620-3631
Number of pages	12
Journal	Optics Express
Volume	30
Issue number	3
DOIs	https://doi.org/10.1364/OE.449198
Publication status	Published - Jan 2022
Publication type	A1 Journal article-refereed

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ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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title = "Multiply-resonant second-harmonic generation using surface lattice resonances in aluminum metasurfaces",

abstract = "Nonlinear metamaterials show potential for realizing flat nonlinear optical devices but are generally lacking in terms of achievable conversion efficiencies. Recent work has focused on enhancing nonlinear processes by utilizing high quality factor resonances, such as collective responses known as surface lattice resonances (SLRs) taking place in periodic metal nanoparticle arrays. Here, we investigate how the dispersive nature of SLRs affects the nonlinear responses of SLR-supporting metasurfaces. Particularly, we measure second-harmonic generation from aluminum nanoparticle arrays and demonstrate that by tilting the sample along two orthogonal directions, the sample can be made multiply-resonant for several pump and second-harmonic signal wavelength combinations. Characterized metasurfaces are estimated to exhibit a second-order susceptibility value of 0.40 pm/V, demonstrating aluminum as a potential material for nonlinear metasurfaces.",

author = "Timo Stolt and Anna Vesala and Heikki Rekola and Petri Karvinen and Hakala, {Tommi K.} and Huttunen, {Mikko J.}",

note = "Funding Information: Academy of Finland (308596, 320165, 320166, 322002); Jenny ja Antti Wihurin Rahasto (Doctoral study grant). Publisher Copyright: {\textcopyright} 2022 Optica Publishing Group",

year = "2022",

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doi = "10.1364/OE.449198",

language = "English",

volume = "30",

pages = "3620--3631",

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T1 - Multiply-resonant second-harmonic generation using surface lattice resonances in aluminum metasurfaces

AU - Stolt, Timo

AU - Vesala, Anna

AU - Rekola, Heikki

AU - Karvinen, Petri

AU - Hakala, Tommi K.

AU - Huttunen, Mikko J.

PY - 2022/1

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N2 - Nonlinear metamaterials show potential for realizing flat nonlinear optical devices but are generally lacking in terms of achievable conversion efficiencies. Recent work has focused on enhancing nonlinear processes by utilizing high quality factor resonances, such as collective responses known as surface lattice resonances (SLRs) taking place in periodic metal nanoparticle arrays. Here, we investigate how the dispersive nature of SLRs affects the nonlinear responses of SLR-supporting metasurfaces. Particularly, we measure second-harmonic generation from aluminum nanoparticle arrays and demonstrate that by tilting the sample along two orthogonal directions, the sample can be made multiply-resonant for several pump and second-harmonic signal wavelength combinations. Characterized metasurfaces are estimated to exhibit a second-order susceptibility value of 0.40 pm/V, demonstrating aluminum as a potential material for nonlinear metasurfaces.

AB - Nonlinear metamaterials show potential for realizing flat nonlinear optical devices but are generally lacking in terms of achievable conversion efficiencies. Recent work has focused on enhancing nonlinear processes by utilizing high quality factor resonances, such as collective responses known as surface lattice resonances (SLRs) taking place in periodic metal nanoparticle arrays. Here, we investigate how the dispersive nature of SLRs affects the nonlinear responses of SLR-supporting metasurfaces. Particularly, we measure second-harmonic generation from aluminum nanoparticle arrays and demonstrate that by tilting the sample along two orthogonal directions, the sample can be made multiply-resonant for several pump and second-harmonic signal wavelength combinations. Characterized metasurfaces are estimated to exhibit a second-order susceptibility value of 0.40 pm/V, demonstrating aluminum as a potential material for nonlinear metasurfaces.

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JO - Optics Express

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Multiply-resonant second-harmonic generation using surface lattice resonances in aluminum metasurfaces

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