Sensor for the Carrier-envelope Phase of Short Laser Pulses: A Measuring Device and a Laser Control Device
Sensoren, Geräte und Komponenten
A conventional approach for stabilizing the CE phase is based on correlation techniques using an interferometric superposition of successive pulses in a so-called f-to-2f interferometer. The correlation technique may have disadvantages in terms of complexity of the experimental setup with many expensive components and complexity of the interferometric superposition in practical applications as well as with regard to the required laser power.
The method offered here is based on a photoemission measurement with improved sensitivity, improved reproducibility, reduced requirements with regard to laser pulse power and/or reduced complexity of the detector setup.
The comparison of both measurements shows that the photoemission signal is varied with the same frequency (here: fCEO = 1 Hz) like the correlation signal obtained with the f-2f-interferometer.
- M. Krüger, M. Schenk, P. Hommelhoff, Attosecond control of electrons emitted from a nanoscale metal tip, Nature 475, 78 (2011).
- M. Schenk, M. Krüger, P. Hommelhoff, Carrier-envelope phase dependent photoemission from a nanometric metal tip, Proceedings of the IEEE Int. Frequency Control Symp. and Exposition 2011, 404 (2011).
- M. Krüger, M. Schenk, M. Förster, P. Hommelhoff, Attosecond physics in photoemission from a metal nanotip, J. Phys. B. At. Mol. Opt. Phys. 45, 074006 (2012).
- G. Wachter, Chr. Lemell, J. Burgdörfer, M. Schenk, M. Krüger, P. Hommelhoff, Electron rescattering at metal nanotips induced by ultrashort laser pulses, Phys. Rev. B 86, 035402 (2012).
- Ref.-Nr.: 1202-4253-WT (357,6 KiB)
PD Dr. Wolfgang Tröger
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