Black phosphorus optical modulators for phase, amplitude and polarization control
US11454830B2 · kind B2 · utility
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2References
10Claims
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Key dates
| Filing date | Dec 20, 2019 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | May 28, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y30/00
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
Resonant optical cavities incorporating black phosphorus to enable electrically tunable control of light are disclosed. Methods and devices are described that use black phosphorus as an electrically tunable optical material to control phase, amplitude and/or polarization of light from visible to mid-infrared wavelengths. The operating wavelength of the optical cavities depends on the thickness of the embedded black phosphorous. Tunable control of light is performed by adjusting the doping level of black phosphorous.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.