F. Huth, M. Schnell, J. Wittborn, N. Ocelić, R. Hillenbrand
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Abstract
We demonstrate a FTIR system that allows for infrared-spectroscopic nano-imaging with a thermal source (nano-FTIR). Based on super-focusing of thermal radiation with an infrared antenna and strong signal enhancement using an asymmetric FTIR spectrometer, we improve the spatial resolution of conventional IR spectroscopy by 2 orders of magnitude.
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