TITLE

Coherent synchrotron radiation for broadband terahertz spectroscopy

AUTHOR(S)
Barros, J.; Evain, C.; Manceron, L.; Brubach, J.-B.; Tordeux, M.-A.; Brunelle, P.; Nadolski, L.; Loulergue, A.; Couprie, M.-E.; Bielawski, S.; Szwaj, C.; Roy, P.
PUB. DATE
March 2013
SOURCE
Review of Scientific Instruments;Mar2013, Vol. 84 Issue 3, p033102
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present the first high resolution (10-3 cm-1) interferometric measurements in the 200-750 GHz range using coherent synchrotron radiation, achieved with a low momentum compaction factor. The effect of microbunching on spectra is shown, depending on the bunch current. A high signal-to-noise ratio is reached thanks to an artifact correction system based on a double detection scheme. Combined to the broad emitted spectral range and high flux (up to 105 times the incoherent radiation), this study demonstrates that coherent synchrotron radiation can now be used for stability-demanding applications, such as gas-phase studies of unstable molecules.
ACCESSION #
86446694

 

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