This research demonstrates enhanced generation efficiencies for photon pairs in semiconductors, indicating superior tunable entangled states.
We present an ultra-thin source of down-converted photon pairs. These semiconductor-based devices are periodically poled to enhance generation efficiencies, yielding high-fidelity, maximally-entangled, tunable polarization states, without any walk-off compensation or interferometric techniques.
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Braun et al. (2025) studied this question.
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