Acta Optica Sinica, Volume. 19, Issue 4, 445(1999)
Polarization Beats in a Four-Level System
Based on the interference between two-photon and two-photon processes, we have studied the ultrafast modulation spectroscopy(UMS) in a four-level system. The possibility of using UMS in a four-level system to measure the energy difference with Doppler-free precision has been demonstrated.
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[in Chinese], [in Chinese], [in Chinese]. Polarization Beats in a Four-Level System[J]. Acta Optica Sinica, 1999, 19(4): 445