Collective Excitations in Nonlinear Metasurfaces: Challenges and Possibilities

Jussi Kelavuori; Madona Mekhael; Ali Panahpour; Timo Stolt; Mikko J. Huttunen

doi:10.1117/12.3048397

Collective Excitations in Nonlinear Metasurfaces: Challenges and Possibilities

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

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Abstract

Nonlinear metasurfaces have recently emerged as promising candidates to enable nanoscale/flat nonlinear optics. Here, we discuss our latest work to develop more efficient nonlinear metamaterials by using high-Q-factor collective lattice excitations known as surface lattice resonances (SLRs). We also demonstrate how conversion efficiencies of metasurfaces can be further improved by embedding nonlinear metasurfaces into multipass cells. Superlinear dependence of second-harmonic generation (SHG) on the number of passes through the metasurface has been measured, confirming successful phase matching during the proof-of-principle experiment.

Original language	English
Title of host publication	Proceedings of SPIE
Subtitle of host publication	Nonlinear Frequency Generation and Conversion: Materials and Devices XXIV
Editors	Jeffrey Moses
Publisher	SPIE
ISBN (Electronic)	9781510684430
ISBN (Print)	9781510684423
DOIs	https://doi.org/10.1117/12.3048397
Publication status	Published - 2025
Publication type	A4 Article in conference proceedings
Event	Nonlinear Frequency Generation and Conversion: Materials and Devices - San Francisco, United States Duration: 28 Jan 2025 → 31 Jan 2025 Conference number: 24

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Publisher	SPIE
Volume	13347
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Nonlinear Frequency Generation and Conversion: Materials and Devices
Country/Territory	United States
City	San Francisco
Period	28/01/25 → 31/01/25

Keywords

High-Q-factor resonances
Nonlinear metasurfaces
Phase matching
Surface lattice resonances

Publication forum classification

Publication forum level 0

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.3048397

Collective Excitations
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Cite this

Kelavuori, J., Mekhael, M., Panahpour, A., Stolt, T., & Huttunen, M. J. (2025). Collective Excitations in Nonlinear Metasurfaces: Challenges and Possibilities. In J. Moses (Ed.), Proceedings of SPIE: Nonlinear Frequency Generation and Conversion: Materials and Devices XXIV Article 1334705 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 13347). SPIE. https://doi.org/10.1117/12.3048397

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abstract = "Nonlinear metasurfaces have recently emerged as promising candidates to enable nanoscale/flat nonlinear optics. Here, we discuss our latest work to develop more efficient nonlinear metamaterials by using high-Q-factor collective lattice excitations known as surface lattice resonances (SLRs). We also demonstrate how conversion efficiencies of metasurfaces can be further improved by embedding nonlinear metasurfaces into multipass cells. Superlinear dependence of second-harmonic generation (SHG) on the number of passes through the metasurface has been measured, confirming successful phase matching during the proof-of-principle experiment.",

keywords = "High-Q-factor resonances, Nonlinear metasurfaces, Phase matching, Surface lattice resonances",

author = "Jussi Kelavuori and Madona Mekhael and Ali Panahpour and Timo Stolt and Huttunen, \{Mikko J.\}",

note = "Publisher Copyright: {\textcopyright} 2025 SPIE.; Nonlinear Frequency Generation and Conversion: Materials and Devices ; Conference date: 28-01-2025 Through 31-01-2025",

year = "2025",

doi = "10.1117/12.3048397",

language = "English",

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series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

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Kelavuori, J , Mekhael, M , Panahpour, A, Stolt, T & Huttunen, MJ 2025, Collective Excitations in Nonlinear Metasurfaces: Challenges and Possibilities. in J Moses (ed.), Proceedings of SPIE: Nonlinear Frequency Generation and Conversion: Materials and Devices XXIV., 1334705, Proceedings of SPIE - The International Society for Optical Engineering, vol. 13347, SPIE, Nonlinear Frequency Generation and Conversion: Materials and Devices, San Francisco, United States, 28/01/25. https://doi.org/10.1117/12.3048397

Collective Excitations in Nonlinear Metasurfaces: Challenges and Possibilities. / Kelavuori, Jussi ; Mekhael, Madona ; Panahpour, Ali et al.
Proceedings of SPIE: Nonlinear Frequency Generation and Conversion: Materials and Devices XXIV. ed. / Jeffrey Moses. SPIE, 2025. 1334705 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 13347).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

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T2 - Nonlinear Frequency Generation and Conversion: Materials and Devices

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AU - Panahpour, Ali

AU - Stolt, Timo

AU - Huttunen, Mikko J.

N1 - Conference code: 24

PY - 2025

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N2 - Nonlinear metasurfaces have recently emerged as promising candidates to enable nanoscale/flat nonlinear optics. Here, we discuss our latest work to develop more efficient nonlinear metamaterials by using high-Q-factor collective lattice excitations known as surface lattice resonances (SLRs). We also demonstrate how conversion efficiencies of metasurfaces can be further improved by embedding nonlinear metasurfaces into multipass cells. Superlinear dependence of second-harmonic generation (SHG) on the number of passes through the metasurface has been measured, confirming successful phase matching during the proof-of-principle experiment.

AB - Nonlinear metasurfaces have recently emerged as promising candidates to enable nanoscale/flat nonlinear optics. Here, we discuss our latest work to develop more efficient nonlinear metamaterials by using high-Q-factor collective lattice excitations known as surface lattice resonances (SLRs). We also demonstrate how conversion efficiencies of metasurfaces can be further improved by embedding nonlinear metasurfaces into multipass cells. Superlinear dependence of second-harmonic generation (SHG) on the number of passes through the metasurface has been measured, confirming successful phase matching during the proof-of-principle experiment.

KW - High-Q-factor resonances

KW - Nonlinear metasurfaces

KW - Phase matching

KW - Surface lattice resonances

U2 - 10.1117/12.3048397

DO - 10.1117/12.3048397

M3 - Conference contribution

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T3 - Proceedings of SPIE - The International Society for Optical Engineering

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A2 - Moses, Jeffrey

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Y2 - 28 January 2025 through 31 January 2025

ER -

Kelavuori J , Mekhael M , Panahpour A, Stolt T, Huttunen MJ. Collective Excitations in Nonlinear Metasurfaces: Challenges and Possibilities. In Moses J, editor, Proceedings of SPIE: Nonlinear Frequency Generation and Conversion: Materials and Devices XXIV. SPIE. 2025. 1334705. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.3048397

Collective Excitations in Nonlinear Metasurfaces: Challenges and Possibilities

Abstract

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Keywords

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ASJC Scopus subject areas

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