Zhang and colleagues report an orbital angular momentum detection device for vortex microwave photons. Specifically, the device is able to distinguish the intrinsic orbital angular momentum mode of the vortex microwave photons with the diffraction pattern of the coupled vortex electrons at room temperature, occupying a much smaller area compared to a particle accelerator system. The device enables application of microwave photons in practical scenarios.
- Chao Zhang
- Xuefeng Jiang
- Wanyu Tian
