Method of increasing photosensitivity of glasses to ultrafast infrared laser radiation using hydrogen or deuterium
US7515792B2 · kind B2 · utility
6Cited by
8References
10Claims
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Key dates
| Filing date | Mar 7, 2007 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Mar 30, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/13
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of increasing the refractive index in a photosensitive glass is disclosed so as to induce an refractive index change of at least 10−5 within a region of the glass. The method includes the step of providing a hydrogen or deuterium loaded doped glass material wherein a dopant within the glass is photosensitive to infrared radiation in the presence of hydrogen or deuterium. The hydrogen or deuterium loaded doped glass is subsequently irradiated with femtosecond pulses of infrared light having an intensity of at least 109 W/cm2 and less than 5×1013 W/cm2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.