Vibrationally resolved K-shell photoionization of CO with circularly polarized light.

Vibrationally resolved partial cross sections and asymmetry parameters for carbon K-shell photoionization of the CO2 molecule

We have measured the vibrationally resolved partial cross sections σv′ 1 and asymmetry parameters βv′ 1 for C K-shell photoionization of the CO2 molecule in the u shape resonance region above the C K-shell ionization threshold. The positions of both the maxima of σv′ 1 and the minima of βv′ 1 move towards the C K-shell threshold with increasing symmetric stretching vibrational excitation v′ 1 i...

Garcia, Gustavo A. and Nahon, Laurent and Daly, Steven and Powis, Ivan (2013) Vibrationally induced inversion of photoelectron forward-backward asymmetry in chiral molecule photoionization by circularly polarized

Relativistic effects in time delay of atomic photoionization

We study relativistic effects in time delay of atomic photoionization using an example of the Xe atom subjected to a circularly polarized electromagnetic pulse. We find that while relativistic effects play only a fairly small role for both the ionization probabilities and the time-delay of the co-rotating electron with the same sign of the angular momentum projection as the circularly polarized...

Complete description of molecular photoionization from circular dichroism of rotationally resolved photoelectron angular distributions.

The photoionization process NO A2Z+(c =0, N=22) NO+ X'Z+(v+=0, lV+)+e is studied with suScient energy resolution that the photoelectron angular distributions associated with individual rotational levels N+ of the ion are determined. By ionizing with left and right circularly polarized light and observing the change in the rotationally resolved photoelectron angular distributions, we can deduce ...

Threshold alignment reversal and circularly polarized fluorescence in rotationally resolved H2.

Using H2 and D2 targets, we have measured the polarization of Fulcher-band fluorescence resulting from spin-polarized electron-impact excitation of vibrationally and rotationally resolved d 3Π(u) → a 3Σ(g)+ transitions for incident electron energies from 14.3 to 28.5 eV. Near threshold, the linear polarization P1 descends from positive values through zero to negative values, indicating a dynami...