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:
Aug. 12, 1997
Filed:
Feb. 01, 1995
Shuichi Kawasaki, Tatebayashi, JP;
Randall J Lane, Brooktondale, NY (US);
Chung L Tang, Ithaca, NY (US);
Cornell Research Foundation, Inc., Ithaca, NY (US);
Abstract
A thermal lens spectrometer utilizes a continuously tunable optical parametric oscillator (OPO) to provide practical, easy-to-build, reliable spectrometer for measuring a wide variety of sample materials over a wide spectral range. A flow cell is placed in the path of the output beam from a tunable optical parametric oscillator, and material to be analyzed is placed in the cell. A laser probe beam is also directed into the cell coaxially with the OPO output beam. The OPO output beam acts as a pump, and the output probe beam from the cell is directed to an intensity sensor. The OPO is tuned over a selected frequency range, under computer control, for example, to produce an output probe beam having an intensity representing the spectral response of the material to be analyzed.