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:
Mar. 09, 2010
Filed:
Nov. 13, 2006
Todd H. Stievater, Arlington, VA (US);
William S Rabinovich, Silver Spring, MD (US);
Eric J Houser, Ocean View, NJ (US);
Stanley V. Stepnowski, Alexandria, VA (US);
R Andrew Mcgill, Lorton, VA (US);
Todd H. Stievater, Arlington, VA (US);
William S Rabinovich, Silver Spring, MD (US);
Eric J Houser, Ocean View, NJ (US);
Stanley V. Stepnowski, Alexandria, VA (US);
R Andrew McGill, Lorton, VA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A sensor and a method for sensing a change in mass of a reflective microbeam in a sensor, the sensor having a reflective layer disposed on a substrate and spaced apart from the reflective microbeam. The microbeam receives amplitude modulated laser energy at a first wavelength and is photothermally excited into resonance at the frequency of amplitude modulation, the reflective microbridge and the reflective layer receive optical energy at a second wavelength and reflect the optical energy toward a receiver. A change in reflectivity of the microbeam at different frequencies is determined. A change in reflectivity indicates a change in resonant frequency of the microbeam. Mass of the microbeam changes when a chemoselective material on the microbeam sorbs a target chemical.