Optics: measuring and testing – For light transmission or absorption
Patent
1997-06-30
2000-01-18
Kim, Robert H.
Optics: measuring and testing
For light transmission or absorption
356359, G01B 902
Patent
active
060162023
ABSTRACT:
The invention provides an apparatus for measuring a property of a sample (using, e.g., ISTS) that includes: 1) an excitation laser that generates an excitation laser beam; 2) an optical system aligned along an optical axis that separates the excitation laser beam into at least three sub-beams; 3) an imaging system aligned along the optical axis that collects the sub-beams and focuses them onto the sample to form an optical interference pattern that generates a time-dependent response in the sample; 4) a probe laser that generates a probe laser beam that diffracts off the time-dependent response to form a signal beam; 5) a detector that detects the signal beam and in response generates a radiation-induced electronic response; and 6) a processor that processes the radiation-induced electronic response to determine the property of the sample.
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Banet Matthew J.
Fuchs Martin
Rogers John A.
Barschall Anne E.
Kim Robert H.
U.S. Philips Corporation
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