- 作者: Min Yan, Edward G. Rickey and Yifu Zhu
- 中文摘要:
Department of Physics, Florida International University, Miami, Florida 33199, U.S.A.
We report experimental studies of electromagnetically induced transparency and enhancement of third-order optical nonlinearities in L-type atomic systems realized in 87Rb atoms cooled and confined in a magneto-optical trap. We observed complete transparency of a weak probe laser in the L-type Rb system with a moderate coupling field. With a third pump laser tuned to a fourth atomic state, the atomic system exhibits the interference-enhanced third-order susceptibility and only absorbs two photons, but not one photon. Our experiment demonstrates large nonlinear absorption of the weak probe laser, from which greatly enhanced Kerr nonlinearity in the Rb system is inferred. - 英文摘要: --
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