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 Title: |
US7362440:
Far-field optical microscope with a nanometer-scale resolution based on the in-plane image magnification by surface plasmon polaritions
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Smolyaninov, Igor I.; Columbia, MD, United States of America
Davis, Christopher C.; Bowie, MD, United States of America
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| Assignee: |
The University of Maryland, Riverdale, MD, United States of America
other patents from UNIVERSITY OF MARYLAND (599690) (approx. 282)
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| Published / Filed: |
2008-04-22
/ 2005-10-24
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| Application Number: |
US2005000256853
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| IPC Code: |
Advanced:
G01N 21/55;
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| U.S. Class: |
356/445;
356/446;
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| Field of Search: |
356/445-446
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| Government Interest: |
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH
This invention was made with government support under NSF contract nos. ECS-0210438 and ECS-0304046 awarded by the National Science Foundation. The government has certain rights in this invention.
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| Priority Number: |
| 2005-10-24 |
US2005000256853 |
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| Abstract: |
A far-field optical microscope capable of reaching nanometer-scale resolution using the in-plane image magnification by surface plasmon polaritons is presented. The microscope utilizes a microscopy technique based on the optical properties of a metal-dielectric interface that may, in principle, provide extremely large values of the effective refractive index neff up to 102-103 as seen by the surface plasmons. Thus, the theoretical diffraction limit on resolution becomes λ/2neff, and falls into the nanometer-scale range. The experimental realization of the microscope has demonstrated the optical resolution better than 50 nm for 502 nm illumination wavelength.
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| Attorney, Agent or Firm: |
Carter, DeLuca, Farrell & Schmidt, LLP ;
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| Primary / Asst. Examiners: |
Toatley, Jr., Gregory J.; Ton, Tri
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| INPADOC Legal Status: |
None
Family Legal Status Report
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