Tunable dielectric resonators for freespace light intensity modulation
US11966144B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Jul 5, 2022 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Oct 4, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/011
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Tunable dielectric resonators for the modulation of freespace radiation and methods of using the resonators are provided. The dielectric resonators include a planar waveguide that supports a vertical Fabry-Perot resonance, a grating that supports a qBIC resonance, and a radiation absorbing material having an electronically or thermally tunable absorption at the qBIC resonant frequency. Using this resonator design, the intensity of the transmission and reflection of the qBIC resonance can be modulated by modulating the absorption properties of the absorbing material at the qBIC resonant frequency.
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