FOV expanded upconversion imaging based on tight focusing system

2021 ◽  
Author(s):  
Yuqi Jiang ◽  
Daquan Yu ◽  
Guohua Gu ◽  
Weiji He ◽  
Qian Chen
Keyword(s):  
Tight Focusing

scholarly journals Tight focusing of second-order cylindrical vector beam by Mikaelian lens

2021 ◽  
Vol 1745 ◽  
pp. 012013
Author(s):  
S. S. Stafeev ◽  
E. S. Kozlova ◽  
A. G. Nalimov ◽  
V. V. Kotlyar
Keyword(s):  
Second Order ◽  
Vector Beam ◽  
Tight Focusing ◽  
Cylindrical Vector Beam

Tight focusing polychromatic structured light

2021 ◽  
Author(s):  
Manuel F. Ferrer-Garcia ◽  
Alessio D'Errico ◽  
Hugo Larocque ◽  
Alicia Sit ◽  
Ebrahim Karimi
Keyword(s):  
Structured Light ◽  
Tight Focusing

Emission of molecular nitrogen at tight focusing of femtosecond laser pulses in air

2021 ◽  
pp. 42-48
Author(s):  
A.A. Ilyin ◽  
◽  
K.A. Shmirko ◽  
S.S. Golik ◽  
D.Yu. Proschenko ◽  
...  
Keyword(s):  
Particle Density ◽  
Molecular Nitrogen ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Plasma Particle ◽  
Sharp Drop ◽  
Radiation Level ◽  
Femtosecond Radiation ◽  
Tight Focusing ◽  
Good Agreement

A numerical model describing the dynamics of plasma particle density upon filamentation of femtosecond radiation in the air is presented. The simulation results are in good agreement with the experimental data. The pumping processes of the N2 and N2+ radiative levels are investigated. The model predicts a sharp drop in electron temperature and density within 1 ns. For the first positive nitrogen system, an excess of the population of the upper radiation level over the population of the lower one is observed for 550 ps.

scholarly journals Analysis of coherent combination characteristics of beam array via tight focusing

2020 ◽  
Vol 69 (9) ◽  
pp. 094204
Author(s):  
Zhe-Qiang Zhong ◽  
Jie Mu ◽  
Xiao Wang ◽  
Bin Zhang
Keyword(s):  
Beam Array ◽  
Tight Focusing

Tight focusing properties of phase modulated transversely polarized sinh Gaussian beam

2016 ◽  
Vol 49 (1) ◽  
Author(s):  
C. Mohana Sundaram ◽  
K. Prabakaran ◽  
P. M. Anbarasan ◽  
K. B. Rajesh ◽  
A. Mohamed Musthafa ◽  
...  
Keyword(s):  
Gaussian Beam ◽  
Tight Focusing ◽  
Focusing Properties

Tight focusing of J0-correlated azimuthally polarized vortex beams

2013 ◽  
Vol 25 (8) ◽  
pp. 1945-1950
Author(s):  
饶连周 Rao Lianzhou ◽  
林惠川 Lin Huichuan ◽  
许国忠 Xu Guozhong
Keyword(s):  
Tight Focusing ◽  
Vortex Beams

Bipolar-variant spin angular momentum and its evolution in a tight focusing process

2020 ◽  
Vol 102 (6) ◽  
Author(s):  
Xu-Zhen Gao ◽  
Jia-Hao Zhao ◽  
Meng-Shuai Wang ◽  
Jin-Jin Liu ◽  
Guang-Bo Zhang ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Spin Angular Momentum ◽  
Tight Focusing
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