Izvorni znanstveni članak
Study of velocity-dependent collision effects on Lamb dip and crossover resonances in three-level system
Bibhas K. Dutta
; Department of Physics, J. K. College, Purulia - 723 101, India
Prasanta K. Mahapatra
; Department of Physics and Technophysics, Vidyasagar University, Midnapore - 721 102, India
Sažetak
We discuss the effects of phase-dephasing and velocity-changing collisions on saturated absorption line shapes studied in an open V-type system under the semi-classical density-matrix formalism. It has been noted that the traces of Lamb dips and crossover resonance dip lying within the Doppler-broadened contour can vanish in the presence of a strong saturating field if a sufficient contribution of collisional dephasing effect is present. Asymmetry may be introduced in the wings of saturated line profiles for a small contribution of collision kernel.
Ključne riječi
three level systems; saturation spectroscopy; Lamb dip and crossover resonances; phase-dephasing and velocity-changing collisions
Hrčak ID:
302141
URI
Datum izdavanja:
1.10.2006.
Posjeta: 185 *