Acta Optica Sinica, Volume. 45, Issue 5, 0526001(2025)
Three‑Dimensional Orientation of Ellipsoidal Particles with Arbitrarily Polarized Vector Beams
Fig. 2. Polarization state schematic within the tight focusing field. (a) Normalized intensity distribution within the tightly focused focal field; (b) schematic of the polarization orientation angle of vector beam, asterisk denotes the coordinate origin
Fig. 4. Normalized intensity distributions of vector beams with different polarization directions within the focal field range. (a) θ0=0°, φ0=0°; (b) θ0=45°, φ0=45°; (c) θ0=90°, φ0=0°; (d) θ0=-30°, φ0=-70°
Fig. 5. Three-dimensional projection distributions of vector beams with different polarization directions within the focal field range. (a) θ0=0°, φ0=0°; (b) θ0=45°, φ0=45°; (c) θ0=90°, φ0=0°; (d) θ0=-30°, φ0=-70°
Fig. 6. Light force distributions experienced by the ellipsoidal particles within the focal field range when vector beams with different polarization directions capture ellipsoidal particles. (a) θ0=0°, φ0=0°; (b) θ0=45°, φ0=45°; (c) θ0=90°, φ0=0°; (d) θ0=-30°, φ0=-70°
Fig. 7. Distributions of gradient force
Fig. 8. Trapping potential distributions in focal plane of optical forces exerted on ellipsoidal particles when trapped by vector beams polarized along directions. (a) θ0=0°, φ0=0°; (b) θ0=45°, φ0=45°; (c) θ0=90°, φ0=0°; (d) θ0=-30°, φ0=-70°
Fig. 9. Relationship between trapping potential and polar angle
Fig. 10. Distributions of torques and the directions of rotation of ellipsoidal particles stably trapped by vector beams polarized along directions. (a) θ0=0°, φ0=0°; (b) θ0=45°, φ0=45°; (c) θ0=90°, φ0=0°; (d) θ0=-30°, φ0=-70°
Fig. 11. Spatial orientation diagrams of ellipsoidal particles when trapped by vector beams with different polarization directions
Get Citation
Copy Citation Text
Xiaohe Zhang, Xin Ning. Three‑Dimensional Orientation of Ellipsoidal Particles with Arbitrarily Polarized Vector Beams[J]. Acta Optica Sinica, 2025, 45(5): 0526001
Category: Physical Optics
Received: Nov. 7, 2024
Accepted: Jan. 8, 2025
Published Online: Mar. 24, 2025
The Author Email: Xiaohe Zhang (xiaohe.zhang@nuist.edu.cn)
CSTR:32393.14.AOS241727