Imaging apparatus and method
US7152007B2 · kind B2 · utility
8Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2003 |
| Grant date | Dec 19, 2006 |
| Priority date | — |
| Expiry date | Dec 9, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/4795
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for investigating a sample, the system including a detector having non-linear current voltage characteristics and being configured to mix two radiation signals having frequencies in the range from 25 GHz to 100 THz, one of the signals being a local oscillator signal and the other signal being a sample signal carrying information about the sample being investigated, the system further having a quantum cascade laser for providing at least the local oscillator signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.