Metafilm for loss-induced super-scattering and gain-induced absorption of electromagnetic wave
US9500772B2 · kind B2 · utility
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22Claims
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Key dates
| Filing date | Dec 7, 2015 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Dec 7, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/774
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A metafilm is provided for operating on a photon at a defined wavelength, for super-scattering, absorption, and for laser absorber switch. The metafilm includes dimers and a conductive substrate for embedding the dimers in an array. Each dimer comprises a pair of a gain element and a loss element. The substrate, and the gain and loss elements have complex permittivity values. The metafilm super-scatters (e.g., lases) the photon in response to increasing the imaginary component of either the substrate or the loss element, and absorbs the photon in response to increasing the imaginary component of the gain element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.