The results of pilot experiments carried out at the new infrared beamline SISSI (Source for Imaging and Spectroscopic Studies in the Infrared) operated at the synchrotron laboratory ELETTRA in Trieste, Italy, are presented and compared with the results obtained with conventional IR sources. The main figures of merit of the infrared synchrotron radiation (IRSR) such as brightness, spectral quality, and stability are discussed. Using a pinhole scanned across the IRSR beam, the effective beam size, the intensity, and the lateral distribution for different wavelengths are determined. The results obtained on geological and biological samples are used to illustrate how the broadband nature and high brightness of the IRSR beam allow IR spectroscopy experiments on diffraction-limited sample areas in both the mid-IR and far-IR regions.
© 2007 Optical Society of America
Original Manuscript: July 28, 2006
Manuscript Accepted: October 16, 2006
Published: March 15, 2007
Vol. 2, Iss. 5 Virtual Journal for Biomedical Optics
Stefano Lupi, Alessandro Nucara, Andrea Perucchi, Paolo Calvani, Michele Ortolani, Luca Quaroni, and Maya Kiskinova, "Performance of SISSI, the infrared beamline of the ELETTRA storage ring," J. Opt. Soc. Am. B 24, 959-964 (2007)