Abstract
We reviewed the recent progress in coherent manipulation on light fields based on the electromagnetically-induced transparency (EIT) effect in Pr3+-doped Y2SiO5 crystal. The results show that, on one hand, the atomic coherence grating, formed when the light pulse is stored in Pr3+:Y2SiO5 crystal under the EIT condition has similar properties to the traditional holographic grating. On the other hand, the atomic coherence grating has its own unique characteristics that are different from those of traditional holographic grating. The EIT-induced nonlinearity and atomic coherence gratings can be used to manipulate the amplitude, the phase and the polarization state of light fields; therefore, they are of important applications for optical signal processing, quantum information processing and imaging processing.
Highlights
Coherent manipulation of the optical fields and material properties via the quantum interference effect is an important issue in both fundamental physics and applied physics.The electromagnetically-induced transparency (EIT) effect [1,2,3] is the result of destructive quantum interference among different atomic transitions and is an effective way of modifying the material properties and manipulating the light fields
We review the recent progress on the manipulation of light fields and its application in optical signal processing based on the EIT effect in Pr:YSO crystal
Even in the early 1990s, that material properties, such as absorptance, spectral dispersion and optical nonlinearity can be coherently modified through the EIT effect, resulting in novel phenomena, such as giant optical nonlinearity and extremely strong spectral dispersion
Summary
Coherent manipulation of the optical fields and material properties via the quantum interference effect is an important issue in both fundamental physics and applied physics. Special phase structures, such as optical vortexes, could be stored and manipulated in EIT media [41,42,43], even at the single photon level [28], which has great practical application in optical communications and quantum information processing. It was realized, even in the early stages, that the EIT effect can enhance nonlinear optical effects. We review the recent progress on the manipulation of light fields and its application in optical signal processing based on the EIT effect in Pr:YSO crystal
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