Figure 1 (IMAGE) Compuscript Ltd Caption |Quantum photonics based on metasurfaces.(a)Quantum sources based on metasurfaces.(b)Using metasurfaces for quantum state tomography.(c)Realizing the entanglement between polarization and orbital angular momentum of single photon through geometric phase of metasurfaces.(d)Realizing the entanglement between two quantum emitters through metasurfaces. Credit OEA Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.