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ALIGNMENT, TRANSPORTATION AND INTEGRATION OF NANOWIRES USING OPTICAL TRAPPING

United States Patent Application

20080315175
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
Individually trapping, transferring, and assembling high-aspect-ratio semiconductor nanowires into arbitrary structures in a fluid environment. Nanowires with diameters as small as 20 nm and aspect ratios of above 100 can be trapped and transported in three dimensions, enabling the construction of nanowire architectures which may function as active photonic devices. Moreover, nanowire structures can now be assembled in physiological environments. In one aspect, nanowires are positioned to direct light to remote samples, reducing exposure of the overall sample to intense source illumination. A tunable nanowire probe for subwavelength imaging is also described utilizing efficient second harmonic generation (SHG) whose optical frequency conversion allows implementing subwavelength microscopes.
Pauzauskie, Peter (Oakland, CA), Radenovic, Alexandra (Zagreb, HR), Trepagnier, Eliane (Palo Alto, CA), Liphardt, Jan (Berkeley, CA), Yang, Peidong (El Cerrito, CA)
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (Oakland CA)
12/ 139,205
June 13, 2008
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was made with Government support under Contract No. DE-AC-02-05CH11231 awarded by the Department of Energy. The Government has certain rights in this invention.