Gradient high-Q dielectric metasurfaces for high harmonic generation and biosensing

Ming Lun Tseng; Felix Ulrich Richter; Piyush Jangid; Ivan Sinev; Aleksandrs Leitis; Sergey Kruk; Yuri Kivshar; Hatice Altug

doi:10.1117/12.3028006

3 October 2024 Gradient high-Q dielectric metasurfaces for high harmonic generation and biosensing

Ming Lun Tseng, Felix Ulrich Richter, Piyush Jangid, Ivan Sinev, Aleksandrs Leitis, Sergey Kruk, Yuri Kivshar, Hatice Altug

Author Affiliations +

Proceedings Volume PC13109, Metamaterials, Metadevices, and Metasystems 2024; PC1310918 (2024) https://doi.org/10.1117/12.3028006
Event: Nanoscience + Engineering, 2024, San Diego, California, United States

Abstract

We report resonance gradient metasurfaces, which show nearly continuous tunability of the high-Q resonance over a broadband wavelength range. The spectral tuning of the high-Q resonance is realized by gradually scaling the unit cell’s geometrical parameters along one coordinate of the metasurface. By using the gradient metasurface and a tunable infrared laser, a resonantly enhanced tunable generation of optical harmonics over a broad spectral range is realized (Adv. Mater. 2024, 36, e2307494). Additionally, broadband biosensing and control of vibrational light-matter coupling by using the gradient metasurface were demonstrated. This research establishes the groundwork for innovative light-generating devices and biosensors.

Conference Presentation

Citation Download Citation

Ming Lun Tseng, Felix Ulrich Richter, Piyush Jangid, Ivan Sinev, Aleksandrs Leitis, Sergey Kruk, Yuri Kivshar, and Hatice Altug "Gradient high-Q dielectric metasurfaces for high harmonic generation and biosensing", Proc. SPIE PC13109, Metamaterials, Metadevices, and Metasystems 2024, PC1310918 (3 October 2024); https://doi.org/10.1117/12.3028006

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