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US Patent 8646319 Dynamic power control for nanoscale spectroscopy

Patent 8646319 was granted and assigned to Anasys Instruments on February, 2014 by the United States Patent and Trademark Office.

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Patent

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Current Assignee
Anasys Instruments
Anasys Instruments
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
8646319
Date of Patent
February 11, 2014
Patent Application Number
12660266
Date Filed
February 23, 2010
Patent Citations Received
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US Patent 11774354 Interferometric optical photothermal infrared spectroscopy
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US Patent 11885745 Fluorescence enhanced photothermal infrared spectroscopy and confocal fluorescence imaging
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US Patent 11940380 Depth-resolved mid-infrared photothermal imaging of living cells and organisms with sub-micron spatial resolution
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US Patent 12066328 Photothermal infrared spectroscopy utilizing spatial light manipulation
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Patent Primary Examiner
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Hezron E. Williams
Patent abstract

Dynamic IR radiation power control for use in a nanoscale IR spectroscopy system based on an Atomic Force Microscope. During illumination from an IR source, an AFM probe tip interaction with a sample due to local IR sample absorption is monitored. The power of the illumination at the sample is dynamically decreased to minimize sample overheating in locations/wavelengths where absorption is high and increased in locations/wavelengths where absorption is low to maintain signal to noise.

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