Volume holograms in transparent materials
US6873444B1 · kind B1 · utility
13Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2000 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Oct 7, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention discloses a method of producing, in a solid transparent material (3), a hologram of an object; the method includes the steps of: developing a three-dimensional mathematical model of an electro-magnetic field emanating from the object, the field producing an image of the object; computing a corresponding three-dimensional set of points, light scattered from which reconstructs the field; and focusing a pulsed laser beam into the solid transparent material onto each of the points sequentially, the beam being capable, when focused, of causing optical breakdown in the solid transparent material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.