Classifying – separating – and assorting solids – Electrostatic – Attracting
Reexamination Certificate
2005-12-13
2005-12-13
Walsh, Donald P. (Department: 3653)
Classifying, separating, and assorting solids
Electrostatic
Attracting
C209S001000, C977S726000
Reexamination Certificate
active
06974927
ABSTRACT:
A method, apparatus, and system for optically sorting and/or manipulating carbon nanotubes by creating an optical dipole trap with a focused light source (e.g., a laser) are described in detail herein. In one representative embodiment, light from the light source may be directed onto a mixture of carbon nanotubes, the mixture including a target class of carbon nanotubes having dimensions (e.g., length and diameter) corresponding to particular electronic properties suitable for an application. By identifying a resonant condition corresponding to the target class of carbon nanotubes, and tuning the light source substantially to the resonant condition, an optical dipole trap may be created to attract carbon nanotubes of the target class to allow manipulation and/or sorting of the target class of carbon nanotubes from the mixture, or rotation of the nanotubes via rotation of a plane of polarization of the light, in an embodiment.
REFERENCES:
patent: 5245466 (1993-09-01), Burns et al.
patent: 6331690 (2001-12-01), Yudasaka et al.
patent: 6333016 (2001-12-01), Resasco et al.
patent: 6350488 (2002-02-01), Lee et al.
patent: 6529277 (2003-03-01), Weitekamp
patent: 2003/0168385 (2003-09-01), Papadimitrakopoulos
patent: 2004/0040834 (2004-03-01), Smalley et al.
patent: 2005/0122550 (2005-06-01), Plewa et al.
Kawata et al., Movement of micrometer-sized particles in the evanescent field of a laser beam, Optics Letters, vol. 17, No. 11, Jun. 1, 1992.
Plewa et al., Processing carbon nanotubes with holographic optical tweezers, Optics Express, vol 12,No. 9, May 3, 2004.
Tang, X.-P. et al.; Electronic Structures of Single-Walled Carbon Nanotubes Determined by NMR; Science, Apr. 2000 pp. 492-494 vol. 288.
Andrews, R. et al.; Continuous Production of Aligned Carbon Nanotubes: A Step Closer to Commercial Realization; Chemical Physics Letters, 303 (1999) 467-474.
Kuhr, Stefan et al.; Deterministic Delivery of a Single Atom; Science, Jul. 2001, pp. 278-280, vol. 293.
Wildöer, Jeroen W. G. et al.; Electronic Structure of Atomically Resoved Carbon Nanotubes; Nature, Jan. 1998, pp. 59-62, vol. 391.
Journet, C. et al.; Large-Scale Production of Single-Walled Carbon Nanotubes by the Electric-Arc Technique; Nature, Aug. 1997, pp. 756-758, vol. 388.
Venema, Liesbeth C. et al.; Imaging Electron Wave Functions of Quanitzed Energy Levels in Carbon Nanotubes; Science, Jan. 1999, pp. 52-55, vol. 283.
Han, H.X. et al.; Photoluminescence Study of Carbon Nanotubes; Los Alamos Physics Preprints: cond-mat/0004035, Apr. 2000, 6 Pgs.
Rochefort, Alain et al.; The Effects of Finite Length on the Electronic Structure of Carbon Nanotubes; Los Alamos Physics Preprints: cond-mat/9808271, Aug. 1998, 18 pgs.
DLA Piper Rudnick Gray Cary US LLP
Intel Corporation
Rodriguez Joseph
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