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Updated: May 12, 2026
13:31
High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
Published on: December 22, 2015
Coherent synchrotron radiation for broadband terahertz spectroscopy
J Barros1, C Evain, L Manceron
1Synchrotron SOLEIL, Saint Aubin, BP 48, 91192 Gif-sur-Yvette, Cedex, France.
The Review of Scientific Instruments
|April 6, 2013
Summary
We achieved high-resolution measurements using coherent synchrotron radiation (CSR). This breakthrough enables new applications, like studying unstable molecules, due to CSR
Area of Science:
- Physics
- Spectroscopy
- Synchrotron Radiation
Background:
- Coherent synchrotron radiation (CSR) offers broad spectral range and high flux.
- Previous limitations hindered its use in stability-demanding applications.
Purpose of the Study:
- To demonstrate high-resolution interferometric measurements using CSR.
- To explore the potential of CSR for advanced spectroscopic applications.
Main Methods:
- Utilized a low momentum compaction factor for CSR generation.
- Employed a double detection scheme for artifact correction.
- Performed interferometric measurements in the 200-750 GHz range.
Main Results:
- Achieved high spectral resolution (10(-3) cm(-1)).
- Demonstrated the impact of microbunching on spectral properties.
- Reached a high signal-to-noise ratio through artifact correction.
Conclusions:
- CSR is now viable for stability-demanding applications.
- Enables gas-phase studies of unstable molecules with unprecedented detail.
- Represents a significant advancement in spectroscopic techniques.
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