Cross-Correlation of THz Pulses from the Electron Storage Ring BESSY II
| Autor: | Jong Seok Lee, Ulrich Schade, Peter Kuske, Barbara Marchetti, Michele Ortolani |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Length scale
Terahertz radiation Physics::Optics Synchrotron radiation Ring (chemistry) 01 natural sciences Optics 0103 physical sciences Time domain 010306 general physics Physics Range (particle radiation) 010308 nuclear & particles physics business.industry coherent synchrotron radiation cross-correlation Condensed Matter Physics lcsh:QC1-999 Electronic Optical and Magnetic Materials Bunches pump-probe low alpha Physics::Accelerator Physics THz business lcsh:Physics Storage ring |
| Zdroj: | Condensed Matter Volume 5 Issue 2 Condensed Matter, Vol 5, Iss 24, p 24 (2020) |
| ISSN: | 2410-3896 |
| Popis: | Coherent synchrotron radiation from an electron storage ring is observed in the THz spectral range when the bunch length is shortened down to the sub-mm-range. With increasing stored current, the bunch becomes longitudinally unstable and modulates the THz emission in the time domain. These micro-instabilities are investigated at the electron storage ring BESSY II by means of cross-correlation of the THz fields from successive bunches. The investigations allow deriving the longitudinal length scale of the micro bunch fluctuations and show that it grows faster than the current-dependent bunch length. Our findings will help to set the limits for the possible time resolution for pump-probe experiments achieved with coherent THz synchrotron radiation from a storage ring. |
| Databáze: | OpenAIRE |
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