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We demonstrate an electron streaking measurement combining sub-femtosecond temporal and sub-2 eV spectral resolution utilizing a narrow-band multilayer mirror at 112 eV. This enables time-resolved attosecond experiments investigating dynamics in semiconductors and other small-bandgap materials.
A time of flight-photoemission electron microscope is combined with a single-shot stereographic above-threshold ionization phase meter for studying attosecond control of electrons in tailored plasmonic nanostructures spatially and energetically via a carrier-envelope phase tagging technique. First carrier-envelope phase-resolved measurements of gold nanoparticles on gold plane and surface roughness...
We report the synthesis, sampling and tailoring of ultrafast optical transients of light spanning over 1.5 octaves and their first application in attosecond experiments. Extension of the synthesizer to the deep ultraviolet is being demonstrated.
We report on the cavity enhancement of a 78MHz, 200fs ytterbium-fiber laser system. Constant enhancement up to a record intra-cavity average power of 18kW has been observed. Beyond the linear regime, 40kW have been achieved.
Abstract.Shock Waves (SW) were produced in air by focusing the (0.25J, 6ns) second-harmonic (=532nm) Nd:YAG laser light into a stainless-steel cylindrical cell at a pressure from 200 to 760Torr. The laser fluence at the focal point is 5GW/cm2. The spatial variation and consequently the time evolution of the radial propagation velocity U of the generated shock waves were measured via a simple optical...
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