Generation of optical filaments by use of phase plate
US7050469B1 · kind B1 · utility
7Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2003 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Dec 3, 2023 |
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 singularity is introduced into the path of the laser beam that forms the optical filaments in the medium. The phase plate is preferably a vortex phase plate having one or more singularities. The locations and characteristics of the phase singularities are selected to control the number and locations of the optical filaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.