scholarly journals PROPAGATION OF OPTICAL PULSE WITH TIME-SPACE ASYMMETRY IN SATURABLE SELF-FOCUSING KERR MEDIUM

1998 ◽  
Vol 47 (1) ◽  
pp. 19
Author(s):  
LI JIAN-QING ◽  
ZHOU GUO-SHENG ◽  
YANG BO-JUN ◽  
XU DA-XIONG
Keyword(s):  
Optical Pulse ◽  
Kerr Medium ◽  
Self Focusing ◽  
Time Space

Dynamics of self-focusing and self-phase modulation of elliptic Gaussian laser beam in a Kerr-medium

Pramana ◽  
2000 ◽  
Vol 55 (3) ◽  
pp. 423-431 ◽  
Author(s):  
Tarsem Singh ◽  
Nareshpal Singh Saini ◽  
Shyam Sunder Kaul
Keyword(s):  
Laser Beam ◽  
Phase Modulation ◽  
Kerr Medium ◽  
Gaussian Laser Beam ◽  
Self Phase Modulation ◽  
Self Focusing

Extremely short optical pulses and superstrings

2020 ◽  
Vol 35 (27) ◽  
pp. 2050221
Author(s):  
Mikhail B. Belonenko ◽  
Natalia N. Konobeeva ◽  
Alexander V. Zhukov
Keyword(s):  
Numerical Solution ◽  
Effective Action ◽  
Optical Pulse ◽  
Optical Pulses ◽  
Maxwell’S Equation ◽  
Pulse Dynamics ◽  
Short Optical Pulse ◽  
Time Space ◽  
Extremely Short Optical Pulses ◽  
Schwinger Mechanism

We analyze the propagation of an extremely short optical pulse from the numerical solution of the Maxwell’s equation related to the effective action obtained in the framework of the theory of superstrings in flat time space. The pulse dynamics turned out to be unstable and eventually leads to a collapse. We particularly analyze the Schwinger mechanism which occurs during the collapse of the pulse.

scholarly journals The Influence of the Self-focusing Effect on the Optical Force Acting on Dielectric Particle Embedded in Kerr Medium

2013 ◽  
Vol 23 (2) ◽  
pp. 155
Author(s):  
Hoang Van Nam ◽  
Cao Thanh Le ◽  
Ho Quang Quy
Keyword(s):  
Refractive Index ◽  
Nonlinear Coefficient ◽  
Optical Tweezer ◽  
Optical Force ◽  
The Self ◽  
Stable Region ◽  
Kerr Medium ◽  
Optical Forces ◽  
Focusing Effect ◽  
Self Focusing

The influence of the self-focusing effect arised from Kerr effect on the optical force acting on the dielecric particle embedded in the Kerr medium, which is irradiated by the Gaussian beam, is proposed to concern. The expressions of the optical forces with the nonlinear refractive index and nonlinear focal length are derived. Using them, the distribution of the optical forces in the trapping region of the optical tweezer is simulated and discussed for same distinguished case of the Kerr medium with different nonlinear coefficients. The results show that the stabe region of the optical tweezer depends on the nonlinear coefficient of refractive index. Moreover, the stable region could be brokendown with a critical value of the nonlinear coefficient of refractive index of the surrounding medium irradiated by Gaussian laser pulse described by given parameters as  intensity, duration and radius of beam waist. 

Observation of Optical Pulse Shaping by the Self-Focusing Effects

1968 ◽  
Vol 21 (24) ◽  
pp. 1648-1649 ◽  
Author(s):  
G. L. McAllister ◽  
J. H. Marburger ◽  
L. G. DeShazer
Keyword(s):  
Pulse Shaping ◽  
Optical Pulse ◽  
The Self ◽  
Self Focusing ◽  
Optical Pulse Shaping
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