Generation of needle of longitudinally polarized beam by tight focusing of double-ring-shaped radially polarized beam with high NA lens axicon

2010 ◽  
Author(s):  
P. M. Anbarasan ◽  
K. B. Rajesh ◽  
Dan Dumitras
Keyword(s):  
Double Ring ◽  
Radially Polarized Beam ◽  
Tight Focusing ◽  
Polarized Beam ◽  
Radially Polarized ◽  
High Na Lens

Tight focusing of double ring shaped radially polarized beam with high NA lens axicon

2011 ◽  
Vol 43 (7) ◽  
pp. 1037-1040 ◽  
Author(s):  
K.B. Rajesh ◽  
N. Veerabagu Suresh ◽  
P.M. Anbarasan ◽  
K. Gokulakrishnan ◽  
G. Mahadevan
Keyword(s):  
Double Ring ◽  
Radially Polarized Beam ◽  
Tight Focusing ◽  
Polarized Beam ◽  
Radially Polarized ◽  
High Na Lens

Tight focusing of phase modulated double ring shaped radially polarized beam with high NA lens

2013 ◽  
Vol 42 (4) ◽  
pp. 382-387 ◽  
Author(s):  
K. Prabakaran ◽  
K. B. Rajesh ◽  
T. V. S. Pillai ◽  
Haresh M. Pandya
Keyword(s):  
Double Ring ◽  
Radially Polarized Beam ◽  
Tight Focusing ◽  
Polarized Beam ◽  
Radially Polarized ◽  
High Na Lens

Tight focusing of partially coherent radially polarized beam with high NA lens axicon

Optik ◽  
2013 ◽  
Vol 124 (21) ◽  
pp. 4956-4959
Author(s):  
C. Mariyal ◽  
P. Suresh ◽  
K.B. Rajesh ◽  
T.V.S. Pillai
Keyword(s):  
Partially Coherent ◽  
Radially Polarized Beam ◽  
Tight Focusing ◽  
Polarized Beam ◽  
Radially Polarized ◽  
High Na Lens

Tight Focusing of Double-Ring-Shaped Bessel-Gaussian Radially Polarized Beam Through a Dielectric Interface

2016 ◽  
Vol 36 (4) ◽  
pp. 0426001
Author(s):  
郑晓 Zheng Xiao ◽  
杨艳芳 Yang Yanfang ◽  
何英 He Ying ◽  
罗祝裕 Luo Zhuyu
Keyword(s):  
Dielectric Interface ◽  
Double Ring ◽  
Radially Polarized Beam ◽  
Tight Focusing ◽  
Polarized Beam ◽  
Radially Polarized

scholarly journals Partially Coherent, Radially Polarized Beam with Annular Apodization

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
C. Mariyal ◽  
P. Suresh ◽  
K. B. Rajesh ◽  
T. V. S. Pillai
Keyword(s):  
Focal Depth ◽  
Focal Region ◽  
Debye Theory ◽  
Partially Coherent ◽  
Tight Focusing ◽  
Polarized Beam ◽  
Microscopy Techniques ◽  
Radially Polarized ◽  
High Na Lens ◽  
Focusing Properties

Based on the vectorial Debye theory, the tight focusing properties of partially coherent, radially polarized vortex beams are investigated in detail. In this paper, we propose to use an amplitude modulated filter in combination with a high NA lens to generate long focal depth in the focal region. Numerical results show that the generation of long focal depth of FWHM (22.08λ) is achieved, which finds useful application in microscopy techniques such as particle acceleration, laser processing, optical micromanipulation, and beam shaping.

scholarly journals Tight focusing of a higher-order radially polarized beam transmitting through multi-zone binary phase pupil filters

2013 ◽  
Vol 21 (5) ◽  
pp. 5363 ◽  
Author(s):  
Hanming Guo ◽  
Xiaoyu Weng ◽  
Man Jiang ◽  
Yanhui Zhao ◽  
Guorong Sui ◽  
...  
Keyword(s):  
Higher Order ◽  
Binary Phase ◽  
Radially Polarized Beam ◽  
Tight Focusing ◽  
Polarized Beam ◽  
Radially Polarized
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