Near-field imaging and nano-Fourier-transform infrared spectroscopy using broadband synchrotron radiation

We demonstrate scanning near-field optical microscopy with a spatial resolution below 100 nm by using low intensity broadband synchrotron radiation in the IR regime. The use of such a broadband radiation source opens up the possibility to perform nano-Fourier-transform infrared spectroscopy over a wide spectral range. (C) 2013 Optical Society of America