Multi-layered holographic read-only memory and data retrieval method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 4, 2009
Grant Date -
Feb 24, 2005
app pub date -
Sep 30, 2004
filing date -
Feb 16, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An inexpensive multi-layered holographic read-only memory having a large capacity is provided. In the memory in which single-mode slab waveguides are multi-layered, a periodic scattering center whose period approximately agrees with the period of the guided mode is provided in at least one of a core layer and a clad layer in each waveguide so that a guided wave in the waveguide is diffracted by the periodic scattering center to the outside of the waveguide and a holographic image is generated.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully