TY - JOUR
T1 - Metalens-array–based high-dimensional and multiphoton quantum source
AU - Li, Lin
AU - Liu, Zexuan
AU - Ren, Xifeng
AU - Wang, Shuming
AU - Su, Vin-Cent
AU - Chen, Mu-Ku
AU - Chu, Cheng Hung
AU - Kuo, Hsin Yu
AU - Liu, Biheng
AU - Zang, Wenbo
AU - Guo, Guangcan
AU - Zhang, Lijian
AU - Wang, Zhenlin
AU - Zhu, Shining
AU - Tsai, Din Ping
N1 - Funding Information:
Funding: The authors acknowledge financial support from the
Publisher Copyright:
© 2020 American Association for the Advancement of Science. All rights reserved.
PY - 2020/6/26
Y1 - 2020/6/26
N2 - The development of two-dimensional metasurfaces has shown great potential in quantum-optical technologies because of the excellent flexibility in light-field manipulation. By integrating a metalens array with a nonlinear crystal, we demonstrate a 100-path spontaneous parametric down-conversion photon-pair source in a 10 × 10 array, which shows promise for high-dimensional entanglement and multiphoton-state generation. We demonstrate two-, three- and four-dimensional two-photon path entanglement with different phases encoded by metalenses with fidelities of 98.4, 96.6, and 95.0%, respectively. Furthermore, four-photon and six-photon generation is observed with high indistinguishability of photons generated from different metalenses. Our metalens-array-based quantum photon source is compact, stable, and controllable, indicating a new platform for integrated quantum devices.
AB - The development of two-dimensional metasurfaces has shown great potential in quantum-optical technologies because of the excellent flexibility in light-field manipulation. By integrating a metalens array with a nonlinear crystal, we demonstrate a 100-path spontaneous parametric down-conversion photon-pair source in a 10 × 10 array, which shows promise for high-dimensional entanglement and multiphoton-state generation. We demonstrate two-, three- and four-dimensional two-photon path entanglement with different phases encoded by metalenses with fidelities of 98.4, 96.6, and 95.0%, respectively. Furthermore, four-photon and six-photon generation is observed with high indistinguishability of photons generated from different metalenses. Our metalens-array-based quantum photon source is compact, stable, and controllable, indicating a new platform for integrated quantum devices.
UR - http://www.scopus.com/inward/record.url?scp=85087141917&partnerID=8YFLogxK
U2 - 10.1126/science.aba9779
DO - 10.1126/science.aba9779
M3 - Journal article
SN - 0036-8075
VL - 368
SP - 1487
EP - 1490
JO - Science
JF - Science
IS - 6498
ER -