A coherent nonlinear mechanism for optical bistability from three level atoms |
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| Authors: | DF Walls P Zoller |
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| Institution: | Physics Department, University of Waikato, Hamilton, New Zealand |
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| Abstract: | A novel scheme for optical bistability in a coherently driven three level atomic system is proposed. The scheme utilizes the non absorption resonance which occurs due to a population trapping in a coherent superposition of the ground state sublevels. The resulting optical bistability occurs for a lower threshold power than for a two level system and is insensitive to Doppler and laser bandwidth effects. |
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