Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2006-08-29
2006-08-29
Allen, Stephone B. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C359S486010
Reexamination Certificate
active
07098442
ABSTRACT:
A polarizing filter includes a portion with a filtering layer having a plurality of openings extending therethrough, where this portion has a maximum physical thickness in a radiation travel direction which is less than approximately one wavelength of the radiation being filtered. A method of making the filter includes: forming a filtering layer over a substrate; creating a plurality of openings through a portion of the filtering layer; and separating the filtering layer from the substrate.
REFERENCES:
patent: 4754130 (1988-06-01), Kostenbauder
patent: 4951106 (1990-08-01), Blouke
patent: 5206708 (1993-04-01), Knapp et al.
patent: 5498863 (1996-03-01), Miller
patent: 5637862 (1997-06-01), Paolella
patent: 5747791 (1998-05-01), Coroy
patent: 6122103 (2000-09-01), Perkins et al.
patent: 6316151 (2001-11-01), Kim et al.
patent: 6331892 (2001-12-01), Green
patent: 6788461 (2004-09-01), Kurtz et al.
patent: 6844971 (2005-01-01), Silverstein et al.
patent: 2001/0052640 (2001-12-01), Sekimoto
patent: 2002/0001964 (2002-01-01), Choi
patent: 2004/0125449 (2004-07-01), Sales
patent: 1 263 028 (2002-12-01), None
David W. Keith, et al., “Free-standing gratings and lenses for atom optics”, 8257b Journal of Vacuum Science & Technology: Part B, American Institute of Physics, New York, US, vol. 9, No. 6 (pp. 2846-2850), Nov. 1, 1991.
T. Wilhein, et al., “A lit grating spectrograph for quantitative soft x-ray spectroscopy”, Review of Scientific Instruments, American Institute of Physics, US; vol. 7, No. 3 (pp. 1694-1699), Mar. 3, 1999.
Earl E. Scime, et al., “Extreme-ultraviolet polarization and filtering with gold transmission grating”, Applied Optics, Optical Society of America, Washington, US (pp. 648-654), Feb. 1, 1995.
Kenneth Mason Publications, “Wire Grid for Fabrication of Very-Fine Wires”, Research Disclosure, No. 337 (p. 414), May 1, 1992.
Junpeng Guo, et al., “Fabricationof thin-film micropolarizer arrays for visible imaging polarimetry”, Applied Optics, Optical Society of America, Washington, US, vol. 39, No. 10 (pp. 186-1492), Apr. 1, 2000.
Tohru Doumuki, et al.,An aluminum-wire grid polarizer fabricated on a gallium-arsenide photodiode:, Applied Physics Letters, American Institue of Physics, New York, US, vol. 71, No. 5; (pp. 686-688), Aug. 4, 1997.
Gregory P. Nordin, “Micropolarizer array for infrared imaging polarimetry”, Journal of the Optical Society of Amerca, vol. 16, No. 5 (pp. 1168-1174), May 5, 1999.
J.H.W.G. den Boer, et al, “Improved polarizer in the infrared: two-wire-grid polarizers in tandem”, Optics Letters, Optical Society of America, Washington, US (pp. 800-802), Apr. 1, 1995.
J.T.M. van Beek, “Nanoscale freestanding gratings for ultraviolet blocking filters”, Journal of Vacuum Science & Technology: Part B, American Vacuum Society, (pp. 3911-3916), Dec. 1998.
Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority for International Application No. PCT/US2004/004610, filed Feb. 17, 2004 (15 pages).
Chahal Premjeet
Morris Francis J.
Allen Stephone B.
Baker & Botts L.L.P.
Monbleau Davienne
Raytheon Company
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