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Steady-state population inversion by multiphoton electromagnetically induced transparency

2004; Optica Publishing Group; Volume: 21; Issue: 4 Linguagem: Inglês

10.1364/josab.21.000806

1520-8540

Yifu Zhu, Joseph Saldana, Lingling Wen, Ying Wu,

Quantum Information and Cryptography

We show that electromagnetically induced transparency suppresses nonlinear absorption of all orders in a multilevel atomic system and leads to selective, multiphoton excitation of resonantly coupled atomic states. Under appropriate conditions, higher-order nonlinear absorption becomes dominant and selective steady-state population inversion is created among the resonantly coupled states.