Tight focusing properties of a circular partially coherent Gaussian beam

2018 ◽  
Vol 35 (12) ◽  
pp. 1974 ◽  
Author(s):  
Huichuan Lin ◽  
Xiaoming Zhou ◽  
Ziyang Chen ◽  
Osami Sasaki ◽  
Yan Li ◽  
...  
2016 ◽  
Vol 49 (1) ◽  
Author(s):  
C. Mohana Sundaram ◽  
K. Prabakaran ◽  
P. M. Anbarasan ◽  
K. B. Rajesh ◽  
A. Mohamed Musthafa ◽  
...  

2017 ◽  
Vol 37 (11) ◽  
pp. 1126001
Author(s):  
朱 洁 Zhu Jie ◽  
唐慧琴 Tang Huiqin ◽  
李晓利 Li Xiaoli

2011 ◽  
Vol 375 (32) ◽  
pp. 2958-2963 ◽  
Author(s):  
Ziyang Chen ◽  
Jixiong Pu ◽  
Daomu Zhao

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
C. Mariyal ◽  
P. Suresh ◽  
K. B. Rajesh ◽  
T. V. S. Pillai

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.


2016 ◽  
Vol 48 (11) ◽  
Author(s):  
C. Mohana Sundaram ◽  
K. Prabakaran ◽  
K. B. Rajesh ◽  
M. Udhayakumar ◽  
P. M. Anbarasan ◽  
...  

Author(s):  
K. Prabakaran ◽  
R. Loganathan ◽  
A. Kesavan ◽  
K. B. Rajesh ◽  
A. Mohamed Musthafa ◽  
...  

2020 ◽  
Vol 476 ◽  
pp. 126312
Author(s):  
Lixun Wu ◽  
Tianhui Hu ◽  
Xinxiang Lai ◽  
Xiangbo Yang ◽  
Hongzhan Liu ◽  
...  

Optik ◽  
2014 ◽  
Vol 125 (18) ◽  
pp. 5339-5342 ◽  
Author(s):  
R.C. Saraswathi ◽  
K. Prabakaran ◽  
K.B. Rajesh ◽  
Z. Jaroszewicz

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