Coupling elements for surface plasmon resonance sensors
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 11, 2003
Grant Date -
Apr 18, 2002
app pub date -
Jul 20, 2001
filing date -
Jul 21, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides configurations and a method of formation of optical coupling elements for surface plasmon resonance sensors. In the method of the present invention, interference patterns between two overlapping monochromatic coherent light beams are created on a photosensitive film disposed on a master substrate. At least one of the light beams has an oblique angle of incidence onto the master substrate, and the focal points of the two overlapping light beams are positioned in order to reduce optical aberrations up to third order. After developing the photosensitive film, the surface relief patterns pattern created on the master substrate is replicated as diffractive optical element onto SPR sensor chips. The diffractive optical elements working as optical coupling elements diffract an incoming light beam into an oblique angle within the range from 40 to .about.80 degrees.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
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