We propose a new sensing device based on all-optical nano-objects placed in a suspended periodic array. We demonstrate that the intensity-based sensing mechanism can measure environment refractive index change of the order of 1.8×10^−6, which is close to record efficiencies in plasmonic devices.
Tognazzi, A., Rocco, D., Gandolfi, M., Locatelli, A., Carletti, L., De Angelis, C. (2021). High Quality Factor Silicon Membrane Metasurface for Intensity-Based Refractive Index Sensing. OPTICS, 2(3), 193-199 [10.3390/opt2030018].
High Quality Factor Silicon Membrane Metasurface for Intensity-Based Refractive Index Sensing
Tognazzi, AndreaPrimo
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2021-09-06
Abstract
We propose a new sensing device based on all-optical nano-objects placed in a suspended periodic array. We demonstrate that the intensity-based sensing mechanism can measure environment refractive index change of the order of 1.8×10^−6, which is close to record efficiencies in plasmonic devices.
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