Electrochemically modulated metasurfaces

Jason G. Valentine

doi:10.1117/12.3010184

13 March 2024 Electrochemically modulated metasurfaces

Jason G. Valentine

Proceedings Volume PC12896, Photonic and Phononic Properties of Engineered Nanostructures XIV; PC128960E (2024) https://doi.org/10.1117/12.3010184
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

In this talk I will explore the hidden potential of electrochemically actuated metasurfaces. Electrochemical actuation is unique in that it provides for control over both the volume expansion of a scatterer as well as the free electron density for permittivity control. I will explore this freedom in dynamic tuning of titanium dioxide and silicon-based metasurfaces, materials already popularized in the field of photonics for their high index and low loss throughout the visible spectrum. Using these materials, we leverage electrochemical intercalation of lithium to initiate phase changes in a continuously tunable, reversible, and bi-stable manner, using bias voltages that are an order of magnitude less than similar devices.

Conference Presentation

Citation Download Citation

Jason G. Valentine "Electrochemically modulated metasurfaces", Proc. SPIE PC12896, Photonic and Phononic Properties of Engineered Nanostructures XIV, PC128960E (13 March 2024); https://doi.org/10.1117/12.3010184

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