ArticleACS nano2026
Electrically Tunable Optofluidic Metasurface.
Article in ACS nano, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
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Abstract
The dynamic control of light at the nanoscale has been a longstanding challenge in photonics. More recently, fluidics has been added to the toolkit, leveraging liquid properties as an additional degree of freedom for tunability. Here, we present a tunable metasurface architecture that integrates an optofluidic layer. We use a guided mode resonance platform, whereby a silicon nitride grating is coated with indium tin oxide (ITO) as the active material, operating in the visible-NIR wavelength range (∼800 nm). Our design employs an all-dielectric structure with a fluidic gate to overcome the efficiency-loss trade-off typical of other dynamic metasurfaces. We demonstrate spectral and phase tuning, achieving a near-2π phase shift with a low voltage swing (±3 V), as well as maintaining a strong resonance amplitude (
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