Stimulated hyper-Raman adiabatic passage. II. Static compensation of dynamic Stark shifts

Citation
S. Guerin et al., Stimulated hyper-Raman adiabatic passage. II. Static compensation of dynamic Stark shifts, PHYS REV A, 58(6), 1998, pp. 4691-4704
Citations number
10
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW A
ISSN journal
10502947 → ACNP
Volume
58
Issue
6
Year of publication
1998
Pages
4691 - 4704
Database
ISI
SICI code
1050-2947(199812)58:6<4691:SHAPIS>2.0.ZU;2-O
Abstract
When one extends the conventional stimulated Raman adiabatic passage method of population transfer; involving a pump pulse preceded by a Stokes pulse, to situations in which the pump (or pump and Stokes) interaction involves a two-photon transition, there occur unavoidable dynamic Stark shifts which prevent maintenance of the relevant resonance conditions. Such shifts can prevent the desired population transfer. We show, through numerical modelin g and analytic considerations, that the detrimental effects of dynamic shif ts can be compensated by a suitable choice of (static) detunings of the car rier frequencies of the two pulses, so that population transfer can be achi eved. We present simple analytic expressions for bounding the range of detu nings for which population transfer can occur, and we present numerical res ults supporting the simple picture of the two-step linewidth. We illustrate these remarks by considering specific examples. [S1050-2947(98)09311-1].