量子态轨道角动量涡旋电磁波多模态解复用装置和方法
By combining a mode sorting module, a sorting extension module, and an electron collection module, the problem of multimodal identification and sorting of vortex electron beams in orbital angular momentum (OAM) is solved, achieving high-precision signal separation and identification, which is suitable for quantum state orbital angular momentum electromagnetic wave transmission.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TSINGHUA UNIVERSITY
- Filing Date
- 2023-11-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing vortex electron beam OAM multimodal identification and sorting technology has difficulty in determining signal strength, has a slow resolution rate, and has extremely small sorting distance between modes, making it difficult to apply in engineering.
A combination of a modal sorting module, a sorting distance extension module, and an electron collection module is used to achieve preliminary sorting and spatial distance extension of multimodal vortex electron beams through holograms and electrostatic double prism structures, and the electron collection module is used to record the magnitude and changes of current.
The signal can be successfully separated and identified for each modal component. The distance between modes is relatively large, and the accuracy of identifying the magnitude, strength and changes of electronic signals is high. It is suitable for multiplexing and demodulation of quantum state orbital angular momentum electromagnetic wave transmission architecture.
Smart Images
Figure CN117639956B_ABST