Generation of optical filaments by use of localized optical inhomogeneities
US7277460B1 · kind B1 · utility
1Cited by
5References
16Claims
0Family size
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Key dates
| Filing date | Aug 14, 2003 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Jun 3, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3511
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical filaments are formed controllably in a gaseous medium such as air. A phase plate introducing a phase discontinuity or other localized optical inhomogeneity is introduced into the path of the pulsed high-power laser beam that forms the optical filaments in the medium. The locations and characteristics of the phase discontinuities or singularities are selected to control the number and locations of the optical filaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.