Self-referenced holography using diffusive element
US6762865B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 7, 2003 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Feb 7, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2223/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention is directed to self-referenced holographic recording techniques that make use of a diffusive element. Self-referenced holography refers to holographic recording techniques in which a reference beam is created from a zero frequency Fourier component of a data encoded object beam. In accordance with the invention, a diffusive element can be positioned in a holographic recording system to create the reference beam from the zero frequency Fourier component of the data encoded object beam. Using a diffusive element to create a reference beam in self-referenced holography can provide advantages to the self-referenced holographic recording system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.