Coherent light generators – Particular pumping means – Pumping with optical or radiant energy
Reexamination Certificate
2006-06-27
2006-06-27
Wong, Don (Department: 2821)
Coherent light generators
Particular pumping means
Pumping with optical or radiant energy
C315S111810
Reexamination Certificate
active
07068698
ABSTRACT:
A controllable single-photon source having a single illuminated molecule in a condensed phase host is provided. The single molecule is illuminated with a pulse of radiation having a wavelength such that the molecule is excited to a vibrational state higher in energy than an associated excited electronic state. The molecule rapidly, incoherently and irreversibly decays, with a lifetime Tvib, from the vibrational state to the excited electronic state by transferring the corresponding vibrational energy to the host. The excited electronic state has a lifetime T, and with high probability the single molecule makes a radiative transition from this state to emit a single photon. The pump pulse duration Tp satisfies the condition Tvib<Tp<T. Room temperature operation and spectral separation of pump and single-photon radiation are thereby provided. A semiconductor nanocrystal can be used instead of a molecule.
REFERENCES:
patent: 5528046 (1996-06-01), Ishikawa
patent: 6657222 (2003-12-01), Foden et al.
patent: 6868103 (2005-03-01), Gerard et al.
patent: 6956330 (2005-10-01), Santori et al.
patent: 2002/0196827 (2002-12-01), Shields et al.
patent: 2004/0109633 (2004-06-01), Pittman et al.
patent: 1 503 328 (2005-02-01), None
patent: 2 362 261 (2001-11-01), None
patent: WO 2004/064297 (2004-07-01), None
patent: WO 2004/064297 (2004-07-01), None
Lukishova et al., “Dye-doped cholerstic-liquid-crystal room-temperature single-photon source,” Journal of Modern Optics, Jun. 15-Jul. 10, 2004, vol. 51, No. 9-10, 1535-1547.
Lukishova et al., “Room Temperature Single-Photon Source: Single-Dye Molecule Fluorescence in Liquid Crystal Host,” IEEE Journal of Selected Topics in Quantum Electronics, vol. 9, No. 6, Nov./Dec. 2003, pp. 1512-1518.
“Demonstration of a Room-Temperature Single-Photon Source for Quantum Information: Single-Dye-Molecule Fluorescence in a Cholesteric Liquid Crystal Host,” Quarterly Report DOE/SF/19460-485, Laboratory for Laser Energetics, U. Rochester, v. 94, Jan.-Mar. 2003.
Fleury et al., “Nonclassical Photon Statistics in Single-Molecule Fluorescence at Room Temperature,” Feb. 7, 2000, The American Physical Society, vol. 84, No. 6, pp. 1148-1151.
Brunel et al., “Triggered Source of Single Photons based on Controlled Single Molecule Fluorescence,” Oct. 4, 1999, The American Physical Society, vol. 83, No. 14, pp. 2722-2725.
Marcel Bruchez Jr., “Semiconductor Nanocrystals as Fluorescent Biological Labels,” Sep. 25, 1998, Science, vol. 281, pp. 2013-2016.
Kuhn et al., “Controlled generation of single photons from a strongly coupled atom-cavity system,” 1999, Applied Physics B 69, pp. 373-377.
L. Fleury et al., “Nonclassical Photon Statistics in Single-Molecule Fluorescence at Room Temperature,” Feb. 7, 2000, The American Physical Society, vol. 84, No. 6, pp. 1148-1151.
Christian Brunel et al., “Triggered Source of Single Photons based on Controlled Single Molecule Fluorescence,” Oct. 4, 1999, The American Physical Society, vol. 83, No. 14, pp. 2722-2725.
Stephen Empedocles et al., “Spectroscopy of Single CdSe Nanocrystallites,” 1999, Accounts of Chemical Research, vol. 32, No. 5, pp. 389-396.
Warren C. W. Chan et al., “Quantum Dot Bioconjugates for Ultrasensitive Nonisotopic Detection,” Sep. 25, 1998, Science, vol. 281, pp. 2016-2018.
A. Kuhn et al., “Controlled generation of single photons from a strongly coupled atom-cavity system,” 1999, Applied Physics B 69, pp. 373-377.
Svetlana G. Lukishova et al, “Dye-doped cholesteric-liquid-crystal room-temperature single-photon source,” Journal of Modern Optics, Jun. 15-Jul. 10, 2004, vol. 51, No. 9-10, 1535-1547.
Svetlana G. Lukishova et al., “Room Temperature Single-Photon Source: Single-Dye Molecule Fluorescence in Liquid Crystal Host,” IEEE Journal of Selected Topics in Quantum Electronics, vol. 9, No. 6, Nov./Dec. 2003, pp. 1512-1518.
Lounis Brahim
Moerner William E.
Al-Nazer Leith
Lumen Intellectual Property Services Inc.
The Board of Trustees of the Leland Stanford Junior University
Wong Don
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