Transient coherence oscillation induced by a detuned Raman field in a rubidium {lambda} system

Journal Article · Sun Feb 01 00:00:00 EST 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.69.023806· OSTI ID:20640781

Park, Sung Jong; Cho, Hyuck; Kwon, Taeg Yong; Lee, Ho Seong ^[1]

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1. Department of Physics, Chungnam National University, Daejeon 305-764 (Korea, Republic of)

The temporal evolution of coherent population trapping (CPT) was observed in rubidium atomic vapor when sudden changes were made to the detuning of a weak Raman field. The subsequent creation and destruction of CPT are caused by the temporal oscillations of optically induced Raman coherence, with their period depending on the Raman detuning. The oscillating signal was observed over a time of order of tens of milliseconds, and the dependence of the relaxation time on the cell temperature and laser power were investigated. The main features of the experimental observations were well explained by the time-dependent density-matrix equations.

• OSTI ID: 20640781
• Journal Information: Physical Review. A, Vol. 69, Issue 2; Other Information: DOI: 10.1103/PhysRevA.69.023806; (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
DENSITY MATRIX
EVOLUTION
HYPERFINE STRUCTURE
LASER RADIATION
OPTICAL PUMPING
OPTICS
OSCILLATIONS
PHOTON-ATOM COLLISIONS
RELAXATION TIME
RUBIDIUM
TIME DEPENDENCE
TRANSIENTS
TRAPPING
VAPORS