Experimental generation and observation of a super-resolution optical tube

Journal of Innovative Optical Health Sciences

Jianghua Xu¹  Liping Jiang¹  Jinbing Hu¹  Houfei Zhu¹  Lingling Liu¹  Songlin Zhuang¹  Haifeng Wang¹ 

[1] Institute of Imaging Optics, Ministry of Education and Shanghai Key Lab of Modern Optical Systems, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China;

关键词: Laser beam shaping;    photodetectors;    binary optics;    fluorescence microscopy;    polarization;   

DOI  :  10.1142/S1793545816410029

来源: DOAJ

【 摘 要 】

We generated a super-resolution optical tube by tightly focusing a binary phase modulated azimuthally polarized laser beam. The binary phase modulation is achieved by a glass substrate with multi-belt concentric ring grooves. We also characterized the 3D beam profile by using a cross-shaped knife-edge fabricated on a silicon photo-detector. The size of the super-resolution dark spot in the tube is 0.32λ, which remains unchanged for ∼4λ within the tube. This optical tube may find applications in super-resolution microscopy, optical trapping and particle acceleration.

【 授权许可】

Unknown