AS-1
AS-1 is our first-generation attosecond beamline at MPQ, with its basic conceptual design based on the world’s first attosecond metrology apparatus commissioned at Vienna University of Technology in 2000. AS-1 is in operation since 2006. It is seeded with 3-3.5fs, ~0.3mJ, ∼720-nm laser pulses at a repetition rate of 3kHz from FP-1
. Permanent advancement of this system has recently culminated in the generation of robust isolated 80-as, 0.5-nJ XUV pulses carried at a photon energy of ∼80eV. These pulses come in sub-100-as synchronism with their near-single-cycle NIR driver pulses and serve together with them as our standard tools for attosecond metrology and spectroscopy, which – thanks to these advances – is now approaching a temporal resolution close to the atomic unit of time (∼24as). The NIR and XUV beam co-propagate collinearly to the target, with an attosecond delay being introduced by a two-component focusing mirror. The beamline can incorporate sophisticated diagnostics and detection systems. These include electron or ion spectrometers, momentum detectors, or an XUV transmission spectrometer, allowing attosecond streaking, tunnelling or transient absorption spectroscopy to be implemented.
contact: E. Goulielmakis, M. Kling
. Permanent advancement of this system has recently culminated in the generation of robust isolated 80-as, 0.5-nJ XUV pulses carried at a photon energy of ∼80eV. These pulses come in sub-100-as synchronism with their near-single-cycle NIR driver pulses and serve together with them as our standard tools for attosecond metrology and spectroscopy, which – thanks to these advances – is now approaching a temporal resolution close to the atomic unit of time (∼24as). The NIR and XUV beam co-propagate collinearly to the target, with an attosecond delay being introduced by a two-component focusing mirror. The beamline can incorporate sophisticated diagnostics and detection systems. These include electron or ion spectrometers, momentum detectors, or an XUV transmission spectrometer, allowing attosecond streaking, tunnelling or transient absorption spectroscopy to be implemented. contact: E. Goulielmakis
, M. Kling
Fig. 1. Schematic of the first attosecond metrology beamline using waveform-controlled few-cycle light and isolated sub-fs XUV pulses realized at the Photonics Institute of Vienna University of Technology.
Fig. 2. Schematic of a the AS-1 attosecond beamline at LAP.
Fig. 3. The AS-1 beamline. (© thn)