Theory of optical ramsey resonance in three separated fields produced by a corner reflector
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In this paper we study the optical Ramsey resonance signal of two-level molecules in three separated fields consisting of one standing wave and two traveling waves of opposite directions with each other. Their separations and phase differences are given by a corner reflector. The transition probability of a molecule that traverses the three interaction regions is calculated by using an optical Bloch vector formalism. It is then integrated over distributions of molecular velocities and positions to evaluate the signal observed with a gas cell. The result is applied to compute the optical Ramsey resonance signal in the absorption line of CH4 at 3.39 μm. Variations of the Ramsey resonance lineshape and the intensity with the gas pressure and the field intensity are obtained.
PACS42.65 07.65 33.90
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