Device and method for emitting electromagnetic radiation
US11322911B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2020 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | May 29, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/061
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An emitter for emitting electromagnetic radiation includes a first region for thermally generating electromagnetic radiation, wherein the first region includes a first photonic crystal of the type having a first periodical structure with first holes having a first dimension and being at a first periodicity, so as to define a first dimension-to-periodicity ratio; and a second region for filtering the electromagnetic radiation generated in the first region, wherein the second region includes a second photonic crystal of the type having a second periodical structure with second holes having a second dimension and being at a second periodicity, so as to define a second dimension-to-periodicity ratio, wherein the second dimension-to-periodicity ratio is different from the first dimension-to-periodicity ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.