Electric field-tunable IR devices with very large modulation of refractive index and methods to fabricate them
US11988907B1 · kind B1 · utility
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28Claims
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Key dates
| Filing date | Mar 25, 2021 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Apr 26, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/11
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electric field-controlled refractive index tunable device includes a phase change correlated transition metal oxide layer, and E-field responsive charge dopants. The E-field responsive charge dopants either accumulate in the phase change correlated transition metal oxide layer or are depleted from the phase change correlated transition metal oxide layer in response to an E-field applied to the phase change correlated transition metal oxide layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.