The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 19, 2018
Filed:
Aug. 24, 2016
Ognjen Ilic, Cambridge, MA (US);
Ido Kaminer, Cambridge, MA (US);
Marin Soljacic, Belmont, MA (US);
Yoav Lahini, Belmont, MA (US);
Ognjen Ilic, Cambridge, MA (US);
Ido Kaminer, Cambridge, MA (US);
Marin Soljacic, Belmont, MA (US);
Yoav Lahini, Belmont, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
A technique to guide a micro- or nano-scale particle uses the wavelengths of light beams to control the direction of motion of the particle. In this technique, an optical asymmetry is introduced into the particle to form a composite particle. The composite particle includes two faces that preferentially absorb light of different wavelengths, independent of the particle orientation. The difference in absorption spectra of the two faces creates a bidirectional and local thermal gradient that is externally switchable by changing the wavelength of the incident light beams. This thermal gradient induces a thermophoretic drift that moves the composite particle. A two-faced nanoparticle can be guided using the optically induced thermophoretic drift as the propulsion mechanism.