| US 7,492,530 B2 | ||
| Metallic nano-optic lenses and beam shaping devices | ||
| Hong Koo Kim, Pittsburgh, Pa. (US); Zhijun Sun, Pittsburgh, Pa. (US); and Christopher C. Capelli, Pittsburgh, Pa. (US) | ||
| Assigned to University of Pittsburgh-Of The Commonwealth System Of Higher Education, Pittsburgh, Pa. (US) | ||
| Filed on Jun. 11, 2007, as Appl. No. 11/761,040. | ||
| Application 11/761040 is a division of application No. 11/001154, filed on Dec. 02, 2004, granted, now 7,315,426. | ||
| Claims priority of provisional application 60/526998, filed on Dec. 05, 2003. | ||
| Prior Publication US 2008/0024873 A1, Jan. 31, 2008 | ||
| Int. Cl. G02B 13/00 (2006.01) | ||
| U.S. Cl. 359—722 [359/738; 359/298] | 11 Claims |
| 1. A method of shaping a radiation beam, comprising passing an incident radiation beam through a device that comprises a metal
film or a plurality of metal islands having a plurality of apertures, each aperture having a width that is less than a first
peak wavelength of the incident radiation, to shape the beam,
wherein the metal film or islands are configured such that the incident radiation beam is resonant with at least one plasmon
mode on the metal film or metal islands, thereby enhancing and shaping transmission of radiation having at least one second
peak wavelength through the apertures.
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