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Gradient Echo Quantum Memory in Warm Atomic Vapor
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Arithmetic with optical topological charges in stepwise-excited Rb vapor

Alexander M Akulshin, Irina Novikova, Eugeniy E Mikhailov

    Optics Letters
    |March 16, 2016
    PubMed
    Summary

    Researchers observed orbital angular momentum (OAM) addition, subtraction, and cancellation during parametric four-wave mixing in Rb vapor, demonstrating OAM conservation in coherent blue light generation.

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