Two-path plasmonic interferometer with integrated detector
US9297638B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 21, 2014 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Oct 21, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y30/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electrically tunable terahertz two-path plasmonic interferometer with an integrated detection element can down convert a terahertz field to a rectified DC signal. The integrated detector utilizes a resonant plasmonic homodyne mixing mechanism that measures the component of the plasma waves in-phase with an excitation field that functions as the local oscillator in the mixer. The plasmonic interferometer comprises two independently tuned electrical paths. The plasmonic interferometer enables a spectrometer-on-a-chip where the tuning of electrical path length plays an analogous role to that of physical path length in macroscopic Fourier transform interferometers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.