Laser & Optoelectronics Progress, Volume. 59, Issue 21, 2105001(2022)
Super-Diffraction Focusing Based on Bessel Beam Controlled by Composited Light Field
Figures & Tables(6)
Fig. 2. Optical intensity distribution of beam under modulation of Bessel beam and focusing lens
Fig. 3. Optical intensity distribution of focused beam under dual modulation of Bessel beam and annular aperture
Fig. 4. Optical intensity distributions of bottle beams in anterior focal field. (a)-(c) Experimental diagram; (d)-(f) simulation diagram
Fig. 5. Optical intensity distributions of bottle beams at long distances. (a)-(e) Experimental diagram; (f)-(j) simulation diagram
Table 1. FWHM of central spot with different propagation distances
View tableTable 1. FWHM of central spot with different propagation distances
Experiment Distance /mm 500 760 1000 1500 2000 FWHM
（λ/NA）
0.3392 0.3148 0.4164 0.4125 0.4529 0.3747 0.3851 0.4817 0.4489 0.3997 0.3568 0.3481 0.4478 0.4303 0.4244 Simulation Distance /mm 580 820 1075 1575 2080 FWHM （λ/NA） 0.4093 0.3794 0.4192 0.4130 0.3967
Tools
Get Citation
Copy Citation Text
Xiaotong Zhu, Pengcheng Zheng, Xiangsheng Xie. Super-Diffraction Focusing Based on Bessel Beam Controlled by Composited Light Field[J]. Laser & Optoelectronics Progress, 2022, 59(21): 2105001
Paper Information
Category: Diffraction and Gratings
Received: Sep. 20, 2021
Accepted: Oct. 29, 2021
Published Online: Oct. 24, 2022
The Author Email: Xiangsheng Xie (xxs@stu.edu.cn)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20