High-Intensity Kapitza-Dirac Effect

Observation of the Kapitza–Dirac effect

“…The idea 6 that the underlying interaction with light is resonantly enhanced for electrons in an atom led to the observation 7 that atoms could be diffracted by a standing wave of light. Deflection of electrons by high-intensity laser light, which is also a consequence of the Kapitza-Dirac effect, has also been demonstrated 8 . But the coherent interference that characterizes wave diffraction has not hitherto been observed 9,10 .…”

“…At much higher laser intensities the important 1988 experiment 8 by Bucksbaum et al showed that electrons could be deflected by the ponderomotive potential. Bucksbaum observed two classical rainbow scattering peaks separated by about 1,000 photon recoils.…”

Intensity-dependent interference effect in high-order harmonic generation from alignedH2 +molecules

“…The nonperturbative quantum electrodynamics theory developed by Guo et al [20] made a notable success in explanation of the strong-field phenomena such as the angular splitting observed by Bucksbaum et al [21] (see also [22]) and the jetlike structure in photoelectron angular distributions observed by Nandor et al [23] (see also [24]). In the framework of this theory, Gao et al [25] derived a quantum scattering theory of HHG.…”

Precise calculation of quasienergies of a driven two-level atom based on the Guo–Wu–Van Woerkom solution

“…The solution of GWV made accurate numerical calculations possible. This solution eventually will be built into the nonperturbative quantum electrodynamics developed earlier by Guo et al [13], and further verified by Guo and Drake [14] using Bucksbaum et al's experimental result [15]. While the quasienergies of this solution are expressed in terms of an infinite number of determinants with infinite ranks, these determinants may be called infinite determinants.…”