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:
Oct. 18, 2005
Filed:
Sep. 15, 2000
Morteza Gharib, San Marino, CA (US);
Dominique Fourguette, Los Angeles, CA (US);
Darius Modarress, Los Angeles, CA (US);
Frederic Taugwalder, Altadena, CA (US);
Siamak Forouhar, Pasadena, CA (US);
Morteza Gharib, San Marino, CA (US);
Dominique Fourguette, Los Angeles, CA (US);
Darius Modarress, Los Angeles, CA (US);
Frederic Taugwalder, Altadena, CA (US);
Siamak Forouhar, Pasadena, CA (US);
California Institute of Technology, Pasadena, CA (US);
Abstract
Integrated sensors are described using lasers on substrates. In one embodiment, a first sensor forms a laser beam and uses a quartz substrate to sense particle motion by interference of the particles with a diffraction beam caused by a laser beam. A second sensor uses gradings to produce an interference. In another embodiment, an integrated sensor includes a laser element, producing a diverging beam, and a single substrate which includes a first diffractive optical element placed to receive the diverging beam and produce a fringe based thereon, a scattering element which scatters said fringe beam based on particles being detected, and a second diffractive element receiving scattered light.