Junyu YAO, Min CHANG, Xuejing LIU, Xiantong YU. Velocity detection based on superpised vortex beams' Doppler effect[J]. Optical Instruments, 2023, 45(4): 54

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- Optical Instruments
- Vol. 45, Issue 4, 54 (2023)

Fig. 1. Skew angle between Poynting vector and its optical axis

Fig. 2. Deviation between the optical axis and the spinning center

Fig. 3. |1
+|4
Superposed Bessel-Gaussian beams detecting spinning object
|1
+|4
的叠加态的贝塞尔高斯光束对旋转物体探测

Fig. 4. Vortex beams detect a spinning object with linear velocity

Fig. 5. Vortex beams detect the Doppler effect caused by complex motion

Fig. 6. Beat frequency in multi-OAM mode vortex beam detection compound motion

Fig. 7. Motion of object portrayed by superposed vortex beams

Fig. 8. Doppler effect caused by transverse motion

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