Sublevel echoes induced by resonant light pulses: Quantum beat echoes |
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Authors: | Y Fukuda K Yamada T Hashi |
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Institution: | Department of Physics, Faculty of Science, Kyoto University, Kyoto 606, Japan |
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Abstract: | We predict and observe a new class of echoes of atomic sublevel coherences induced by two impact excitations with resonant light pulses which may be either coherent or incoherent. The Zeeman-sublevel echoes in 3 2S of sodium were observed by using polarization selective detection technique under the excitation condition that the optical T2 (5 × 10-11 s) was much shorter than the pulse width (5 ns). Theoretical analysis also predicts the echoes involving coherence transfer between ground and excited states. |
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