Optimal Bichromatic Two-Photon Excitation with Near-Resonant Chirped Pulses

Journal Article · Wed Dec 26 00:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2836212· OSTI ID:21049458

Serrat, Carles ^[1]; Biegert, Jens ^[2]

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1. DFEN-Universitat Politecnica de Catalunya, Colom 1, 08222 Terrassa, Barcelona (Spain)
2. ICREA and ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860 Castelldefels, Barcelona (Spain)

We investigate a method for creating complete population inversion in a three level system by using bichromatic two-photon coherent excitations with laser pulses, and study the dependence of the optimal population transfer on the chirp of the pulses. We observe that the population inversion does not monotonously decrease with increasing the time-bandwidth product, and that the excitation depends on the sign of the chirp of the individual pulses. Our results, which evidence a worthwhile strategy for coherent population transfer in three level systems, are particularized to the level structure of atomic sodium, with regard to applications in bichromatic mesospheric guide stars.

• OSTI ID: 21049458
• Journal Information: AIP Conference Proceedings, Vol. 963, Issue 2; Conference: ICCMSE 2007: International conference on computational methods in science and engineering, Corfu (Greece), 25-30 Sep 2007; Other Information: DOI: 10.1063/1.2836212; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ENERGY LEVELS
EXCITATION
LASER RADIATION
MULTI-PHOTON PROCESSES
OPTICAL PUMPING
PHOTONS
POPULATION INVERSION
PULSES
QUANTUM COMPUTERS
SODIUM