Chuqi Wei, Xinlin Chen, Guangzong Xiao, Xiang Han, Hui Luo. Mechanical Characteristics of Four-Beam Optical Trap on Chip[J]. Laser & Optoelectronics Progress, 2020, 57(13): 131401
- Laser & Optoelectronics Progress
- Vol. 57, Issue 13, 131401 (2020)
Fig. 1. Working principle diagram. (a) Dual-beam optical trap; (b) four-beam optical trap
Fig. 2. Relevant parameters of light incident on the surface of the microsphere
Fig. 3. Geometry of microsphere illuminated by Gaussian beam
Fig. 4. Distribution of light trapping forces on microspheres. (a) Dual-beam optical trap; (b) four-beam optical trap
Fig. 5. Curves of trapping force in the dual-beam optical trap. (a) x direction; (b) z direction; (c) y direction
Fig. 6. Curves of trapping force in the four-beam optical trap. (a) x direction; (b) z direction; (c) y direction
Fig. 7. Trap stiffness versus the input power
Fig. 8. Structure of the chip. (a) Dual-beam optical trap; (b) four-beam optical trap
Fig. 9. Experimental structure of the four-beam optical trap
Fig. 10. Microsphere captured in the four-beam optical trap. (a) Microsphere moves to the capture chamber; (b) microsphere enters the capture chamber; (c) successfully captured
Fig. 11. Varying curves of relative replacement in the dual-beam optical trap. (a) z direction; (b) x direction
Fig. 12. Varying curves of relative replacement in the four-beam optical trap. (a) z direction; (b) x direction
Fig. 13. Optical trap stiffness varies with optical power in the experiment
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