TY - GEN
T1 - Spatially entangled pairs of photons from lithium niobate nonlocal metasurfaces
AU - Zhang, Jihua
AU - Ma, Jinyong
AU - Parry, Matthew
AU - Cai, Marcus
AU - Morales, Rocio Camacho
AU - Xu, Lei
AU - Neshev, Dragomir N.
AU - Sukhorukov, Andrey A.
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - We predict and demonstrate experimentally, for the first time to our knowledge, the generation of spatially entangled photon pairs through spontaneous parametric down-conversion from a metasurface incorporating a nonlinear thin film of lithium niobate covered by a silica meta-grating. We identify the spatial entanglement of the photon pairs through violation of the classical Cauchy-Schwartz inequality. Simultaneously, the photon-pair rate is strongly enhanced by 450 times compared to unpatterned films.
AB - We predict and demonstrate experimentally, for the first time to our knowledge, the generation of spatially entangled photon pairs through spontaneous parametric down-conversion from a metasurface incorporating a nonlinear thin film of lithium niobate covered by a silica meta-grating. We identify the spatial entanglement of the photon pairs through violation of the classical Cauchy-Schwartz inequality. Simultaneously, the photon-pair rate is strongly enhanced by 450 times compared to unpatterned films.
UR - http://www.scopus.com/inward/record.url?scp=85142817141&partnerID=8YFLogxK
U2 - 10.1109/Metamaterials54993.2022.9920945
DO - 10.1109/Metamaterials54993.2022.9920945
M3 - Conference contribution
T3 - 2022 16th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2022
SP - X496-X498
BT - 2022 16th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 16th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2022
Y2 - 12 September 2022 through 17 September 2022
ER -