ArticleNanophotonics (Berlin, Germany)2023
Rotating axis measurement based on rotational Doppler effect of spliced superposed optical vortex.
Article in Nanophotonics (Berlin, Germany), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Scalable Multi-Target Illusion via a Segmented Spatiotemporal Metasurface.Nanophotonics (Berlin, Germany) · 2026Article
- Doppler effect tailoring: extra-red shift of structured light.Nature communications · 2025Article
- Metrology with a twist: probing and sensing with vortex light.Light, science & applications · 2025Review
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Authors and funding
8 authors.
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Abstract
In most rotational Doppler effect (RDE) measurements, the optical axis and the rotating axis of the object are required to be aligned. However, the condition is very difficult to achieve in practical applications of rotation detection, which seriously affects the received signal. Moreover, it is necessary to focus the beam on the rotating axis of a rotating surface in applications ranging from manufacturing to physical experiments. For example, the manufacture of diffraction optical elements requires aligning the beam to the rotating axis of the spindle. Therefore, how to determine the azimuth of the rotating axis has become an urgent problem to be solved. Based on a new type of superposed vortex beam with multiple topological charges (TCs), we report a new scheme for determining the position of rotating axis by only single RDE measurement, which greatly improves the measurement efficiency. According to the mode decomposition and conservation of angular momentum and energy, we reveal the RDE mechanism of the new structured beam named spliced superposed optical vortex (SSOV) and explain why the SSOV with asymmetrical defect is sensitive to the rotating axis of the object. In addition, in order to prove the effectiveness of the method, a proof-of-concept experiment is conducted to detect the position of object's rotating axis in eight azimuth ranges, i.e., [
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