Differential infra red nanoscopy system and method
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United States of America Patent
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Feb 20, 2018
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Jan 6, 2014
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Jan 4, 2013
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Abstract
The invention provides a method and system to record the absorption of a sample, said method comprising the steps of providing first and second pulsed beam of light on said sample using one or more light beams, said first and second pulsed beam having different spatial definition; measuring the difference in intensity transmitted through and/or reflected by a sample; and generating an image by scanning the sample while making such measurements. The system and method of the invention can work down to resolution of several 100 of nm, affording thus a large improvement in comparison to synchrotron IR imaging that is the closest technique existing today. The advantage versus scanning probe approach is the absence of physical probe, thus suppressing confinement to surface information and removing uncertainty regarding the working behavior of the probe.
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