Method and apparatus for detection of contaminants in air by laser-induced filamentation
US9897548B2 · kind B2 · utility
1Cited by
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17Claims
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Key dates
| Filing date | Aug 9, 2016 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Aug 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/06113
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method using a laser to propagate a laser beam through an optically-transparent medium, wherein the laser has a power level beyond a critical value Pcr, and wherein the laser beam interacts with the optically transparent medium to generate a laser-induced plasma filament (LIPF); and adjusting the power level to qualitatively detect chemical components within the optically-transparent medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.