Transient-state THz spectrometer for detecting cells and biological macromolecules
US11692935B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2021 |
| Grant date | Jul 4, 2023 |
| Priority date | — |
| Expiry date | Jan 13, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/396
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a transient-state THz spectrometer applied to cells and biological macromolecules, including a femtosecond laser amplifier. A femtosecond laser output by the femtosecond laser amplifier is divided into two beams of pump light and probe light after passing through a beam splitter of which a transmission-reflection ratio is 7:3, the pump light is focused to irradiate a gap between electrodes of a nonlinear photoconductive antenna and emit a terahertz wave after successively passing through a half wave plate, a silver-plated reflector and a first lens, the terahertz wave forms a terahertz wave collineation after successively passing through a second lens, a slab waveguide, a third lens and an ITO film, the terahertz wave collineation and the probe light form a probe light collineation of wavefront tilt which is perpendicularly incident on a ZnTe crystal and detected and recorded by using a CCD camera.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.