System and method for identifying materials using a THz spectral fingerprint in a media with high water content
US10753867B2 · kind B2 · utility
1Cited by
15References
8Claims
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Key dates
| Filing date | Aug 30, 2019 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Aug 30, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/3581
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A material detector includes a pulse generator to generate pulses to excite molecules in the material and a detector to detect a signal generated from excited molecules in the terahertz region. Spectral features in the material are analyzed to identify the material. Detection can be performed using a nanoantenna array structure having antennas tuned to detect the expected spectral emission. The nanoantenna array can include antennas having MIM or MIIM diodes. Signal processing and statistical analysis is use to reduce false positives and false negative in identifying the material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.