Experimental generation and observation of a super-resolution optical tube

Experimental generation and observation of a super-resolution optical tube

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-ed...

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Bibliographic Details
Main Authors: Jianghua Xu, Liping Jiang, Houfei Zhu, Lingling Liu, Jinbing Hu, Haifeng Wang, Songlin Zhuang
Format: Article
Language:English
Published: World Scientific Publishing 2016-05-01
Series:Journal of Innovative Optical Health Sciences
Subjects:
Laser beam shaping
photodetectors
binary optics
fluorescence microscopy
polarization
Online Access:http://www.worldscientific.com/doi/pdf/10.1142/S1793545816410029
Description
Summary: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.
ISSN:1793-5458
1793-7205

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