Frequency modulation-polarization spectroscopy method and device for detecting spectral features
CA 1208930 A · Owner: International Business Machines Corporation · Inventors: Levenson, Marc D.; Bjorklund, Gary C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A method and device for detecting dichroic and/or birefringent narrow spectral features in a sample is described. The method includes the steps of providing a beam of light having an optical frequency bandwidth which is narrow compared to the width of the narrow spectral feature and having a center frequency .omega.c which lies near the narrow spectral feature polarization phase modulating a beam of light with a single RF frequency to provide a pure FM spectrum having upper and lower sidebands in which either the carrier and sidebands have been polarized differently with respect to one another, exposing the sample containing the narrow spectral feature to the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted August 5, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 5, 2003.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.