Methods for generating and controlling terahertz radiation
US12326620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2021 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Mar 8, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/13
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for generating THz (terahertz) radiation, the apparatus comprising: a substrate; a planar array of subwavelength antennas formed on the substrate having rotational symmetry, Cn, of order “n” greater than or equal to 3 and rotational symmetry cycle 2π/η, which are excitable by near infrared (NIR)_pump radiation to radiate THz radiation having wavelengths that are substantially larger than characteristic dimensions of the subwavelength antenna; wherein the array comprises a plurality of sections each comprising plurality of subwavelength antennas exhibiting a spatial pattern different from that of an adjacent section of the plurality of sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.