Light effects in the atomic-motion-induced Ramsey narrowing of dark resonances in wall-coated cells

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.063810· OSTI ID:21528970

Breschi, E; Schori, C; Di Domenico, G; Mileti, G ^[1]; Kazakov, G; Litvinov, A; Matisov, B ^[2]

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1. Laboratoire Temps-Frequence-University of Neuchatel, CH-2000 Neuchatel (Switzerland)
2. St. Petersburg State Polytechnic University, RU-195251 St. Petersburg (Russian Federation)

We report on light shift and broadening in the atomic-motion-induced Ramsey narrowing of dark resonances prepared in alkali-metal vapors contained in wall-coated cells without buffer gas. The atomic-motion-induced Ramsey narrowing is due to the free motion of the polarized atomic spins in and out of the optical interaction region before spin relaxation. As a consequence of this effect, we observe a narrowing of the dark resonance linewidth as well as a reduction of the ground states' light shift when the volume of the interaction region decreases at constant optical intensity. The results can be intuitively interpreted as a dilution of the intensity effect similar to a pulsed interrogation due to the atomic motion. Finally the influence of this effect on the performance of compact atomic clocks is discussed.

• OSTI ID: 21528970
• Journal Information: Physical Review. A, Vol. 82, Issue 6; Other Information: DOI: 10.1103/PhysRevA.82.063810; (c) 2010 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALKALI METALS
ATOMIC CLOCKS
ATOMS
GROUND STATES
INTERACTIONS
REDUCTION
RELAXATION
RESONANCE
SPECTRAL SHIFT
SPIN
VAPORS
VISIBLE RADIATION
ANGULAR MOMENTUM
CHEMICAL REACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY LEVELS
FLUIDS
GASES
METALS
PARTICLE PROPERTIES
RADIATIONS