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 Title: |
US7362442:
Far-field optical microscope with a nanometer-scale resolution based on the in-plane image magnification by surface plasmon polaritons
[ 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
/ 2005-02-18
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| Application Number: |
US2005000061837
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| IPC Code: |
Advanced:
G01N 21/47;
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| U.S. Class: |
356/446;
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| Field of Search: |
Non/00e
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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: |
| 2005-02-18 |
US2005000061837 |
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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: |
Lauchman, Layla G.; Skovholt, Jonathan
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| INPADOC Legal Status: |
None
Family Legal Status Report
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| Parent Case: |
PRIORITY
This application claims priority under 35 U.S.C. §119(e) to a U.S. Provisional Application filed on Feb. 20, 2004 and assigned U.S. Provisional Application No. 60/546,146 and to a U.S. Provisional Application filed on May 7, 2004 and assigned U.S. Provisional Application No. 60/569,305; the contents of both applications are incorporated herein by reference.
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| Family: |
Show 3 known family members
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First Claim:
Show all 43 claims |
1. A method for microscopy imaging using surface plasmon polaritons, said method comprising the steps of: placing an object onto a coated surface of a glass for imaging the object; depositing a dielectric droplet on the object forming a vertical surface where the dielectric droplet contacts a plane of the coated surface, wherein the dielectric droplet includes at least one focal point for changing the direction of travel of the surface plasmon polaritons; directing light through the glass for creating the surface plasmon polaritons in the coated surface which scatter off the object, where the scattered plasmon polaritons are collected at the vertical surface and redirected as a beam propagating a magnified two-dimensional image of the object, where the beam is scattered by irregularities in the coated surface; and positioning at least one lens for viewing the magnified two-dimensional image propagated by the scattered beam.
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| Background / Summary: |
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| Drawing Descriptions: |
Show drawing descriptions
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| Description: |
Show description
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| Foreign References: |
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| Other References: |
Igor I.Smolyaninov, Surface Plasmon toy model of a rotating black hole, New Journal of Physics, Oct. 27, 2003, 7 pgs, vol. 5, IOP Publishing Ltd and Deutsche Physikalische Geselischaft.
Davide Castelvecchi, A Microscope from Flatland, Physical Review Letters, Jan. 24, 2005, 2pgs, The American Physical Society.
Smolyaninov et al., Resolution enhancement of a surface immersion microscope near the plasmon resonance, Optics Letters, Feb. 15, 2005, 3pgs, vol. 30, No. 4, Optical Society of America.
Smolyaninov et al., Far-Field Optical Microscopy with a Nanometer-Scale Resolution Based on the In-Plane Image Magnification by Surface Plasmon Polaritons, Physical Review Letters, Mar. 10, 2004, 4pgs, The American Physical Society.
H.-J. Maas et al, Photonic nanopatterns of gold nanostructures indicate the excitation of surface plasmon modes of a wavelegnth of 50-100 nm by scanning near-field optical microscopy, Journal of Microscopy, Mar. 2003, vol. 209, No. 3, 7 pages.
Smolyaninov et al., Spectroscopic measurements of light emitted by the scanning tunneling microscope, Physics Letters A, vol. 158, pp. 337-340, 1991.
(4 pages)
[ISI abstract]
H. Ditlbacher et al., Two-dimensional optics with surface plasmon polartions, Applied Physics Letters, American Institute of Physics, Sep. 2, 2002, vol. 81, No. 10, pp. 1762-1764.
(3 pages)
[ISI abstract]
Igor I. Smolyaninov et al, Imaging of Surface Plasmon Scattering by Lithographically Created Individual Surface Defects, Physical Review Letters, The American Physical Society, Oct. 28, 1996, vol. 77, No. 18, pp. 3877-3880.
(4 pages)
[ISI abstract]
T.W. Ebbesen et al., Extraordinary optical transmission through sub-wavelength hole arrays, Letters to Nature, Feb. 12, 1998, vol. 391, pp. 667-669.
(3 pages)
Cited by 28 patents
[ISI abstract]
A.V. Zaytes et al., Polarization superprism effect in surface polaritonic crystals, Applied Physics Letters, American Institute of Physics, Jun. 23, 2003, vol. 82, No. 25, pp. 4438-4440.
Igor I. Smolyaninov et al., Apparent superresolution in near-field optical imaging of periodic gratings, Optics Letters, Optical Society of America, Sep. 1, 1998, vol. 23, No. 17, pp. 1346-1347.
(2 pages)
[ISI abstract]
J.J. Burke et al., Surface-polariton-like waves guided by thin, lossy metal films, Physical Review B, The American Physical Society, Apr. 15, 1986, vol. 33, No. 8, pp. 5186-5201.
(16 pages)
Cited by 4 patents
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| Continuity Data: |
| Application Number | Filed | Notes |
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US2005000061837 | 2005-02-18 | is a
related to the prior publication |
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US20050185186A1 issued 2005-08-25 Far-field optical microscope with a nanometer-scale resolution based on the in-plane image magnification by surface plasmon polaritons
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US2005000061837 | 2005-02-18 | is a
related to the prior publication |
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US20070229835A1 issued 2007-10-04 Far-field optical microscope with a nanometer-scale resolution based on the in-plane image magnification by surface plasmon polaritions
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US2005000256853 | 2005-10-24 | is a
continuation of |
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>US2005000061837<
| 2005-02-18 |
(pending)
[presumed granted]
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US7362442 issued 2008-04-22 Far-field optical microscope with a nanometer-scale resolution based on the in-plane image magnification by surface plasmon polaritons
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11256853 | | is a
continuation of |
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>US2005000061837<
| 2005-02-18 |
(pending)
[presumed granted]
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US7362442 issued 2008-04-22 Far-field optical microscope with a nanometer-scale resolution based on the in-plane image magnification by surface plasmon polaritons
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US2005000061837 | 2005-02-18 | is a
non-provisional of provisional |
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US2004000569305P
| 2004-05-07 |
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US2005000061837 | 2005-02-18 | is a
non-provisional of provisional |
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US2004000546146P
| 2004-02-20 |
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