aNational Synchrotron Light Source, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
bDepartment of Physics and Astronomy, Stony Brook University, USA
cDepartment of Physics, University of Florida, USA
Abstract:
A Bruker model IFS 125HR Fourier transform interferometer has been installed and its performance tested using high-brightness, far-infrared synchrotron radiation. Results of absorption measurements for the rotational modes of water vapor demonstrate a nearly 10-fold improvement in signal-to-noise when compared with the instrument’s internal high-pressure Hg arc lamp source.