Phase control of a two-photon transition with shaped femtosecond laser-pulse sequences

Journal Article · Wed Dec 01 00:00:00 EST 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.70.063407· OSTI ID:20649963

Praekelt, A; Wollenhaupt, M; Sarpe-Tudoran, C; Baumert, T ^[1]

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1. University of Kassel, Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), Heinrich-Plett-Strasse 40, D-34132 Kassel (Germany)

Phase effects in a quantum control experiment on the two-photon transition 4s <-<- 3s of atomic sodium are studied. In our experiment, we combine the generation of phase-locked interferometrically generated pulses with pulse-shaping techniques to study in detail the interplay of optical and quantum-mechanical phases. Subtle differences in the physical realization of the pulse sequences produce large difference in the control objective--the 4s population. The control mechanisms of more complex pulse sequences generated by periodic and discontinuous phase-modulation functions are investigated systematically and analyzed on the basis of quantum-mechanical interference.

• OSTI ID: 20649963
• Journal Information: Physical Review. A, Vol. 70, Issue 6; Other Information: DOI: 10.1103/PhysRevA.70.063407; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CONTROL
ENERGY-LEVEL TRANSITIONS
INTERFERENCE
LASER RADIATION
MODULATION
PERIODICITY
PHOTONS
PULSES
QUANTUM MECHANICS
SODIUM