✦ LIBER ✦

Intensity and polarization of light emitted in slow ion-atom collisions

✍ Scribed by Herbert F. M. Dacosta; David A. Micha; Keith Runge

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 531 KB
Volume: 60
Category: Article
ISSN: 0020-7608
DOI: 10.1002/(sici)1097-461x(1996)60:7<1469::aid-qua28>3.0.co;2-y

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✦ Synopsis

We study the intensity and polarization of light emitted during slow ion-atom collisions. We describe the nuclei as moving along classical trajectories while the electronic rearrangement is treated using time-dependent molecular orbitals. The intensity of emitted light is calculated from the diatomic time-dependent dipole. We evaluate the diatomic dipole matrix elements involving 1 s, 2 s, and 2 p traveling atomic orbitals suitable for time-dependent collision studies. We calculate the intensity and the polarization of light emitted in p + H(ls) collisions at kinetic energies from 10 to 1000 eV, for several impact parameters, changing over time. The emitted intensity goes through a maximum as the collision energy increases and lasts between 10 and 1 fs; the polarized light components parallel and perpendicular to the incoming beam direction show pronounced dependences on impact parameters and time.

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