Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Reexamination Certificate
2006-12-26
2006-12-26
Neyzari, Ali (Department: 2627)
Dynamic information storage or retrieval
Storage or retrieval by simultaneous application of diverse...
Magnetic field and light beam
C369S112270, C385S129000, C250S216000
Reexamination Certificate
active
07154820
ABSTRACT:
An optical element structure allowing an increased power density of aperture-transmitted light while suppressing increase in temperature is disclosed. A conductive film has a sub-wavelength aperture formed therein and a periodic surface topography formed thereon. A lens focuses light onto the periodic surface topography with a predetermined diameter. The predetermined diameter of incident light on the conductive film and a period of the periodic surface topography are determined so that a power ratio of aperture-transmitted light to the light beam is greater than that of aperture-transmitted light which would be obtained if no periodic surface topography is provided in the conductive film.
REFERENCES:
patent: 5199090 (1993-03-01), Bell
patent: 5598387 (1997-01-01), Pohl
patent: 5846843 (1998-12-01), Simon
patent: 5973316 (1999-10-01), Ebbesen et al.
patent: 6040936 (2000-03-01), Kim et al.
patent: 6052238 (2000-04-01), Ebbesen et al.
patent: 6236033 (2001-05-01), Ebbesen et al.
patent: 6285020 (2001-09-01), Kim et al.
patent: 6649901 (2003-11-01), Thio et al.
patent: 6834027 (2004-12-01), Sakaguchi et al.
patent: 2000-207767 (2000-07-01), None
patent: 2001-133618 (2001-05-01), None
patent: 2001-291265 (2001-10-01), None
patent: 2002-288010 (2002-09-01), None
E. Betzig et al “Near-Field Optics: Microscopy, Spectroscopy, and Surface Modification Beyond the Diffraction Limit”, Science, vol. 257, pp. 189-194, Jul. 1992.
G.A. Valaskovic et al. “Parameter Control, Characterization, and Optimization in the Fabrication of Optical Fiber Near-Field Probes”, Applied Optics, vol. 34, No. 7, pp. 1215-1227, 1995.
H. A. Bethe, “Theory of Diffraction by Small Holes,” Physical Review, vol. 66, Nos. 7 and 8, pp. 163-182, Oct. 1944.
Lezec H.J. et al., “Beaming Light from a Subwavelength Aperture”, Science 297:820-822 (2002).
Nakada Matsafumi
Thio Tineke
NEC Corporation
Neyzari Ali
Scully , Scott, Murphy & Presser, P.C.
LandOfFree
Optical element for enhanced transmission of light and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical element for enhanced transmission of light and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical element for enhanced transmission of light and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3698341