Relative phase measurement of a stark wave packet in the vicinity of the saddle point
نویسندگان
چکیده
A gas of Rb atoms in a static electric field has been photoexcited to just above the classical ionization threshold by a phase-locked sequence of two far infrared pulses. A single laser pulse generates a series of ejected electron packets emerging at the saddle point of the potential; each of the ejected packets is characterized by a phase and a chirp. We calculate and measure these phases and chirps using the time dependent interference of the electronic wave function controlled by the delay between the two light pulses.
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عنوان ژورنال:
- Physical review letters
دوره 85 20 شماره
صفحات -
تاریخ انتشار 2000