http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106442391-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-3586 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-3586 |
| filingDate | 2016-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106442391-B |
| titleOfInvention | A kind of the THz wave time-domain spectroscopy coherent detection method and device of ultra-wide frequency spectrum |
| abstract | The present invention provides the THz wave time-domain spectroscopy coherent detection method and device of a kind of ultra-wide frequency spectrum, is subordinate to photovoltaic applications field.The method of the present invention generates laser second harmonic signal with the nonlinear interaction of air atom/molecule in air medium using exploring laser light impulse electric field and terahertz-wave pulse electric field to detect the electric field time domain waveform signal of terahertz-wave pulse, is a kind of coherent detection method.The frequency multiplication optical signal generated in apparatus of the present invention includes the optics natural oscillation frequency doubled light generated in nonlinear crystal β-BBO using exploring laser light, the laser freuqency doubling light also generated in air medium comprising exploring laser light and terahertz-wave pulse electric field.The present invention generates natural oscillation source using β-bbocrystal, and the size of oscillation source is controlled by the angle of the fast axle and exploring laser light polarization direction that rotate β-bbocrystal, without generating natural oscillation source using applied voltage modulator, both cost is saved, but also detection method is more easy, detection can be implemented under the conditions of full optical element. |
| priorityDate | 2016-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 18.