Method and apparatus for terahertz detection of charged molecules and microbes
US11614401B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 2020 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Jul 7, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/06113
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for Terahertz detection of target charged cells, comprising a near-infrared femtosecond radiation source; a sensing plate, the sensing plate comprising a sensing film deposited on an insulator/semiconductor film; wherein the radiation source is configured to irradiate the sensing plate, and upon irradiation, the sensing plate emits electromagnetic pulses in a THz frequency range in a specular direction of reflection. The method for Terahertz detection of target charged cells comprises irradiating a sensing plate comprising a sensing film deposited on an insulator/semiconductor film with a near-infrared femtosecond radiation; applying a charged bias voltage to the sensing film; and monitoring variations in amplitude of THz pulses emitted by the sensing plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.