We experimentally demonstrate an angularly-multiplexed holographic memory capable of intrinsic generation, storage and retrieval of multiple photons, based on off-resonant Raman interaction in warm rubidium-87 vapors. The memory capacity of up to 60 independent atomic spin-wave modes is evidenced by analyzing angular distributions of coincidences between Stokes and time-delayed anti-Stokes light, observed down to the level of single spin-wave excitation during several-μs memory lifetime. We also propose how to practically enhance rates of single and multiple photons generation by combining our multimode emissive memory with existing fast optical switches.
@article{arxiv.1604.06049,
title = {High-Capacity Angularly-Multiplexed Holographic Memory Operating at the Single Photon Level},
author = {Radosław Chrapkiewicz and Michał Dąbrowski and Wojciech Wasilewski},
journal= {arXiv preprint arXiv:1604.06049},
year = {2017}
}
Comments
8 pages, 6 figures (article + supplemental material), accepted for publication in Phys. Rev. Lett