Work

Phase-Matched Second-Harmonic Generation from Metasurfaces Inside Multipass Cells

Year: 2024

Type: article

Abstract: \nWe demonstrate a scalable approach to increase conversion efficiencies of nonlinear metasurfaces by incorporating them into multipass cells and allowing the pump beam to pass several times through the metasurfaces. As a proof of principle, we achieve phase matching of the second-harmonic generation (SHG) signal with superlinear dependence on the number of passes. We measure an order of magnitude enhancement in the SHG signal when the incident pump traverses the metasurface up to 9 passes. The generic nature of our approach holds promise for diverse applications in nonlinear optics.\n

Source: Springer Link (Chiba Institute of Technology)

DOI: 10.1051/epjconf/202430908006/pdf

Authors: Madona Mekhael, Timo Stolt, Anna Vesala, Heikki Rekola, Tommi K. Hakala, Robert Fickler, Mikko J. Huttunen

Institutions: Tampere University, University of Tampere, University of Eastern Finland

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W6903220346

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