Generation of super-resolution longitudinally polarized beam with ultra-long depth of focus using radially polarized hollow Gaussian beam

2014 ◽  
Vol 331 ◽  
pp. 87-93 ◽  
Author(s):  
Zhongquan Nie ◽  
Guang Shi ◽  
Xueru Zhang ◽  
Yuxiao Wang ◽  
Yinglin Song
Keyword(s):  
Gaussian Beam ◽  
Super Resolution ◽  
Depth Of Focus ◽  
Polarized Beam ◽  
Radially Polarized

scholarly journals Optimized anti-reflection core-shell microspheres for enhanced optical trapping by structured light beams

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Vahid Shahabadi ◽  
Ebrahim Madadi ◽  
Daryoush Abdollahpour
Keyword(s):  
Gaussian Beam ◽  
Optical Trapping ◽  
Structured Light ◽  
Core Shell ◽  
Amorphous Titania ◽  
Radially Polarized Beam ◽  
Polarized Beam ◽  
The Common ◽  
Light Beams ◽  
Radially Polarized

AbstractIn this paper, we study the optical trapping of anti-reflection core-shell microspheres by regular Gaussian beam and several structured beams including radially polarized Gaussian, petal, and hard-aperture-truncated circular Airy beams. We show that using an appropriate anti-reflection core-shell microsphere for the optical trapping by several structured light beams can dramatically enhance the strength of the trap compared to the trapping by the common Gaussian beam. The optimal core-shell thickness ratio that minimizes the scattering force is obtained for polystyrene-silica and anatase-amorphous titania microspheres, such that the core-shells act as anti-reflection coated microspheres. We show that the trapping strength of the anti-reflection coated microparticles trapped by the common Gaussian beam is enhanced up to 2-fold compared to that of trapped uncoated microparticles, while the trapping of anti-reflection coated microparticles, by the radially polarized beam, is strengthened up to 4-fold in comparison to that of the trapped uncoated microparticles by the Gaussian beam. Our results indicate that for anatase-amorphous titania microparticles highest trap strength is obtained by radially polarized beam, while for the polystyrene-silica microparticles, the strongest trapping is achieved by the petal beam.

scholarly journals Optimized anti-reflection core-shell microspheres for enhanced optical trapping by structured light beams

2020 ◽  
Author(s):  
Vahid Shahabadi ◽  
Ebrahim Madadi ◽  
Daryoush Abdollahpour
Keyword(s):  
Gaussian Beam ◽  
Optical Trapping ◽  
Structured Light ◽  
Core Shell ◽  
Amorphous Titania ◽  
Radially Polarized Beam ◽  
Polarized Beam ◽  
The Common ◽  
Light Beams ◽  
Radially Polarized

Abstract In this paper, we study the optical trapping of anti-reflection core-shell microspheres by regular Gaussian beam and several structured beams including radially polarized Gaussian, petal, and hard-aperture-truncated circular Airy beams. We show that using an appropriate anti-reflection core-shell microsphere for the optical trapping by several structured light beams can dramatically enhance the strength of the trap compared to the trapping by the common Gaussian beam. The optimal core-shell thickness ratio that minimizes the scattering force is obtained for polystyrene-silica and anatase-amorphous titania microspheres, such that the core-shells act as anti-reflection coated microspheres. We show that the trapping strength of the anti-reflection coated microparticles trapped by the common Gaussian beam is enhanced up to 2-folds compared to that of trapped uncoated microparticles, while the trapping of anti-reflection coated microparticles, by the radially polarized beam, is strengthened up to 4-folds in comparison to that of the trapped uncoated microparticles by the Gaussian beam. Our results indicate that for anatase-amorphous titania microparticles highest trap strength is obtained by radially polarized beam, while for the polystyrene-silica microparticles, the strongest trapping is achieved by the petal beam.

Efficient conversion of a radially polarized beam to a nearly Gaussian beam

2007 ◽  
Vol 32 (8) ◽  
pp. 924 ◽  
Author(s):  
G. Machavariani ◽  
Y. Lumer ◽  
I. Moshe ◽  
S. Jackel ◽  
N. Davidson
Keyword(s):  
Gaussian Beam ◽  
Efficient Conversion ◽  
Radially Polarized Beam ◽  
Polarized Beam ◽  
Radially Polarized

scholarly journals Image scanning microscopy with a long depth of focus generated by an annular radially polarized beam

2020 ◽  
Vol 28 (26) ◽  
pp. 39288
Author(s):  
Weibo Wang ◽  
Baoyuan Zhang ◽  
Biwei Wu ◽  
Xiaojun Li ◽  
Jie Ma ◽  
...  
Keyword(s):  
Scanning Microscopy ◽  
Depth Of Focus ◽  
Image Scanning ◽  
Radially Polarized Beam ◽  
Polarized Beam ◽  
Radially Polarized
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