【摘 要】
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Since the famous work of Isidor Rabi in 1936, it is well known that in quantum systems, different energy levels may resonantly interact with an appropriate
【机 构】
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InstituteofPhysicsandPhysicalTechnologies,ClausthalUniversityofTechnology,38678Clausthal-Zellerfeld,
【出 处】
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International Conference Nonlinear Waves-Theory and Applicat
论文部分内容阅读
Since the famous work of Isidor Rabi in 1936, it is well known that in quantum systems, different energy levels may resonantly interact with an appropriate periodic modulation [1].A typical example is a two-level atomic system, where an electromagnetic wave whose frequency is tuned to the energy gap between the two states, causes periodic population exchanges accompanied by emission and re-absorption of a photon.Here, we realize the optical analogue of this process, by a transversely-periodic photonic lattice that is ad ditionally modulated along the propagation direction [2,3].We demonstrate all-optical Rabi-like transitions of extended Floquet-Bloch (FB) modes occurring when the corre sponding selection rules of momentum and parity conservation are fulfilled.
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