Universal dispersion and power curves for transverse magnetic waves propagating in slab waveguides with a nonlinear self‐focusing substrate

1991 ◽  
Vol 69 (5) ◽  
pp. 2826-2834 ◽  
Author(s):  
Marie Fontaine
2012 ◽  
Vol 30 (3) ◽  
pp. 509-516 ◽  
Author(s):  
Tarsem Singh Gill ◽  
Ranju Mahajan ◽  
Ravinder Kaur ◽  
Suhail Gupta

AbstractThis paper presents an investigation of a self-consistent, theoretical model, which explains the ring formation in a super-Gaussian laser beam propagating in plasma with transverse magnetic field, characterized by relativistic nonlinearity. Higher order terms (up to r4) in the expansion of the dielectric function and the eikonal have been taken into account. The condition for the formation of a dark and bright ring has been used to study focusing/defocusing of the beam. It is seen that inclusion of higher order terms does significantly affect the dependence of beam width parameter on the distance of propagation. Self-focusing of super-Gaussian beam is studied at various values of super-Gaussian coefficient, m and magnetic field. Further, we have studied some distinct features of critical power curves for varying values of magnetic field.


2009 ◽  
Vol 16 (11) ◽  
pp. 112306 ◽  
Author(s):  
Don S. Lemons ◽  
Kaijun Liu ◽  
Dan Winske ◽  
S. Peter Gary

1947 ◽  
Vol 18 (8) ◽  
pp. 766-769 ◽  
Author(s):  
G. G. Bruck ◽  
E. R. Wicher

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