Amplitude and phase control of spontaneous emission in a double-driven four-level atom
Department of Physics, Harbin Institute of Technology, 150001, Harbin, P.R. China
Corresponding author: a firstname.lastname@example.org
Revised: 17 July 2009
Published online: 26 September 2009
The spontaneous emission property of a coherent microwacve-driven four-level atomic system is investigated. It is shown that a few interesting phenomena due to microwave generated coherence (MGC) such as spectral narrowing, partial cancellation, and spectral-line enhancement can be achieved by varying the Rabi frequency and the phase of microwave field coupling the two upper levels in the atomic system.
PACS: 42.50.Gy – Effects of atomic coherence on propagation, absorption, and amplification of light; electromagnetically induced transparency and absorption / 32.80.Qk – Coherent control of atomic interactions with photons / 32.50.+d – Fluorescence, phosphorescence
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2009