Infrared Synchrotron Radiation with 2020 Vision

This presentation will survey our current understanding of infrared synchrotron radiation sources and beamline designs, using the 1st infrared beamline at NSLS-II as an example. Aspects of source dimension, waveguide cutoff effects and motivation for the overall optical design will be discussed, along with performance results (including coherent emission during normal accelerator operations at 400 mA). While infrared spectromicroscopy remains the dominant measurement method, other techniques continue to develop and evolve, placing additional demands on the source as well as detectors. A particular example is near-field infrared nanospectroscopy for spanning the far-infrared spectral region where a ~1 MHz response bandwidth is needed to match harmonics of the AFM oscillation frequency. The potential for fast bolometers with custom long-pass filters will be described.
Acknowledgements: This work supported by the U.S. Dep’t, of Energy through contracts DE-SC0012704 at NSLS-II.