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Photonics
Volume 9
Issue 7
10.3390/photonics9070441
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Review

Rotational Doppler Effect in Vortex Light and Its Applications for Detection of the Rotational Motion

by
Tian-Yu Cheng
1,2,3,
Wen-Yue Wang
1,2,3,
Jin-Song Li
1,2,3,
Ji-Xiang Guo
1,2,3,
Shuo Liu
1,2,3 and
Jia-Qi Lü
1,2,3,*
1
Center for Advanced Laser Technology, Hebei University of Technology, Tianjin 300401, China
2
Hebei Key Laboratory of Advanced Laser Technology and Equipment, Tianjin 300401, China
3
National Demonstration Center for Experimental (Electronic and Communication Engineering) Education, Hebei University of Technology, Tianjin 300401, China
*
Author to whom correspondence should be addressed.
Photonics 2022, 9(7), 441; https://doi.org/10.3390/photonics9070441
Submission received: 5 May 2022 / Revised: 18 June 2022 / Accepted: 20 June 2022 / Published: 22 June 2022
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Abstract

The linear Doppler effect has been widely used to detect the translational motion of objects. However, it suffers difficulties in measuring the angular motion of a rotating target. In recent years, the rotational Doppler effect based on a vortex beam has been helpful to solve the problem of rotational measurement and has attracted extensive attention in remote sensing. This paper expounds the theoretical and experimental basis of the rotational Doppler effect and briefly summarizes its development for the detection of macro and micro targets. Specifically, the properties and analysis methods of a rotational Doppler shift when the vortex beam is misaligned with the rotation axis are described in detail. In addition, the existing problems and further developments in rotation detection based on the rotational Doppler effect are discussed.
Keywords: vortex beam; rotational doppler effect; orbital angular momentum; beat frequency; angular velocity vortex beam; rotational doppler effect; orbital angular momentum; beat frequency; angular velocity

Share and Cite

MDPI and ACS Style

Cheng, T.-Y.; Wang, W.-Y.; Li, J.-S.; Guo, J.-X.; Liu, S.; Lü, J.-Q. Rotational Doppler Effect in Vortex Light and Its Applications for Detection of the Rotational Motion. Photonics 2022, 9, 441. https://doi.org/10.3390/photonics9070441

AMA Style

Cheng T-Y, Wang W-Y, Li J-S, Guo J-X, Liu S, Lü J-Q. Rotational Doppler Effect in Vortex Light and Its Applications for Detection of the Rotational Motion. Photonics. 2022; 9(7):441. https://doi.org/10.3390/photonics9070441

Chicago/Turabian Style

Cheng, Tian-Yu, Wen-Yue Wang, Jin-Song Li, Ji-Xiang Guo, Shuo Liu, and Jia-Qi Lü. 2022. "Rotational Doppler Effect in Vortex Light and Its Applications for Detection of the Rotational Motion" Photonics 9, no. 7: 441. https://doi.org/10.3390/photonics9070441

APA Style

Cheng, T.-Y., Wang, W.-Y., Li, J.-S., Guo, J.-X., Liu, S., & Lü, J.-Q. (2022). Rotational Doppler Effect in Vortex Light and Its Applications for Detection of the Rotational Motion. Photonics, 9(7), 441. https://doi.org/10.3390/photonics9070441

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