Terahertz detection using a multi-mode signal
US7620508B2 · kind B2 · utility
1Cited by
10References
19Claims
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Key dates
| Filing date | Jan 27, 2005 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Nov 16, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/006
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A technique for generating and detecting an EM signal in the THz range involves generating EM energy having multiple modes, selecting at least two of the modes of the EM energy to provide a multi-mode EM signal, subjecting the multi-mode EM signal to mixing, and isolating a beat signal component that results from the mixing. The spacing between adjacent ones of the selected modes, i.e., the frequency difference between the modes, is in the radio frequency (RF) or microwave frequency ranges. Signals in these ranges are commonly processed using electronic circuits at room temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.