Propagation of Elegant Hermite-Gaussian Beams in Strongly Nonlocal Nonlinear Media

2011 ◽  
Vol 31 (11) ◽  
pp. 1119002
Author(s):  
张霞萍 Zhang Xiaping
Keyword(s):  
Gaussian Beams ◽  
Nonlinear Media ◽  
Nonlocal Nonlinear Media ◽  
Strongly Nonlocal Nonlinear Media ◽  
Nonlocal Nonlinear

Numerical Simulations of Elliptical Hollow Gaussian Beams Propagating in Strongly Nonlocal Media

2015 ◽  
Vol 713-715 ◽  
pp. 2085-2088
Author(s):  
Zhen Feng Yang
Keyword(s):  
Numerical Simulations ◽  
Beam Width ◽  
Input Power ◽  
Gaussian Beams ◽  
Nonlinear Media ◽  
Nonlocal Nonlinear Media ◽  
Strongly Nonlocal Nonlinear Media ◽  
Nonlocal Media ◽  
Nonlocal Nonlinear ◽  
Evolution Period

The evolution of elliptical hollow Gaussian beams propagating in strongly nonlocal nonlinear media is investigated. As examples, this paper mainly focuses on the evolutions of the transverse intensity and the beam width of elliptical hollow Gaussian beams with the beam order being 1 and 3. The results show that the evolutions of the transverse intensity and the beam width are both periodical and the size of the evolution period is determined by the input power. There exists the transverse reverse transform for the beam width when selecting a proper input power, which is quiet different from the circularly symmetric hollow Gaussian beams.

Propagation dynamics of modified hollow Gaussian beams in strongly nonlocal nonlinear media

Laser Physics ◽  
2014 ◽  
Vol 25 (2) ◽  
pp. 025401 ◽  
Author(s):  
Zhiping Dai ◽  
Zhenjun Yang ◽  
Shumin Zhang ◽  
Zhaoguang Pang ◽  
Kaiming You
Keyword(s):  
Gaussian Beams ◽  
Nonlinear Media ◽  
Nonlocal Nonlinear Media ◽  
Strongly Nonlocal Nonlinear Media ◽  
Propagation Dynamics ◽  
Nonlocal Nonlinear

Propagation of four-petal Gaussian beams in strongly nonlocal nonlinear media

2010 ◽  
Vol 283 (4) ◽  
pp. 595-603 ◽  
Author(s):  
Zhenjun Yang ◽  
Daquan Lu ◽  
Dongmei Deng ◽  
Shaohua Li ◽  
Wei Hu ◽  
...  
Keyword(s):  
Gaussian Beams ◽  
Nonlinear Media ◽  
Nonlocal Nonlinear Media ◽  
Strongly Nonlocal Nonlinear Media ◽  
Nonlocal Nonlinear

scholarly journals Propagation Property of an Astigmatic sin–Gaussian Beam in a Strongly Nonlocal Nonlinear Media

2018 ◽  
Vol 9 (1) ◽  
pp. 71 ◽  
Author(s):  
Kaicheng Zhu ◽  
Jie Zhu ◽  
Qin Su ◽  
Huiqin Tang
Keyword(s):  
Light Field ◽  
Propagation Distance ◽  
Gaussian Beams ◽  
Propagation Property ◽  
Nonlinear Media ◽  
Phase Singularities ◽  
Nonlocal Nonlinear Media ◽  
Strongly Nonlocal Nonlinear Media ◽  
Beam Parameters ◽  
Nonlocal Nonlinear

Based on the Snyder and Mitchell model, a closed-form propagation expression of astigmatic sin-Gaussian beams through strongly nonlocal nonlinear media (SNNM) is derived. The evolutions of the intensity distributions and the corresponding wave front dislocations are discussed analytically and numerically. It is generally proved that the light field distribution varies periodically with the propagation distance. Furthermore, it is demonstrated that the astigmatism and edge dislocation nested in the initial sin-Gaussian beams greatly influence the pattern configurations and phase singularities during propagation. In particular, it is found that, when the beam parameters are properly selected, a vortex beam with perfect doughnut-shaped profile can be obtained for astigmatic sin-Gaussian beams with two-lobe pattern propagating in SNNM.

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