Berlin 2012 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 1: Tutorial: Attosecond Electron Dynamics
HL 1.3: Tutorium
Sunday, March 25, 2012, 17:20–17:55, EW 201
Attosecond science at nanometric needle tips — •Peter Hommelhoff — Max-Planck-Institut für Quantenoptik
Attosecond science, namely the steering of electrons with the electric field of well-controlled femtosecond laser pulses, has led to the generation of high-harmonic radiation, even to the generation of single isolated extreme-ultraviolet pulses with durations below 100 attoseconds (1 as = 10−18 s), as well as to the measurement of intramolecular dynamics and ultrafast electron holography. These effects have been observed with atoms, molecules and clusters in the gas phase. We will report on the steering of electrons emitted from nanoscale metal tips with the help of phase-controlled low-power few-cycle femtosecond laser pulses. We will highlight the commonalities as well as the differences to the atomic physics system, and will give an outlook on future techniques such as ultrafast surface imaging.