Abstract

Utilizing dipole blockade of Rydberg excitations, we study an ensemble of stationary atoms driven into the four-level $N$ configuration for achieving a new kind of electromagnetically induced grating in the presence of a traveling-wave and a standing-wave classical control fields. This grating shows cooperative optical nonlinearities as manifested by the sensitivity of output diffraction patterns to input light intensities (photon correlations) of a quantum probe field, promising then an essential opportunity for distinguishing weaker and stronger (bunched and anti-bunched) light fields.

© 2016 Optical Society of America

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