New Infrared Nanospectroscopy Endstation at the National Synchrotron Light Source II*

Infrared near-field spectroscopy provides unique capabilities for exploration of the nanoworld as it combines the information density of optical techniques with the spatial resolution of atomic force microscopy of ~10 nm. When combined with the high spectral radiance of infrared synchrotron light sources, nanospectroscopy covers an ultrabroadband spectral range from the near to far infrared (320 cm^-1 - 8000 cm^-1, 40 meV – 1 eV).

At the National Synchrotron Light Source II, we are currently commissioning a new infrared nanospectroscopy setup, which is now available for general user proposals. We will illustrate the current capabilities of this setup via near-field spectroscopy data of bulk materials and thin films, as well as polariton interferometry of 2D and van der Waals materials.