Controlling Weak Laser Beam to Nonlinear Focusing Based on Induced Nonlinear Effects

Feng Lin; Chao Tan; Yuan Zhou; Xi Quan Fu

doi:10.4028/www.scientific.net/AMR.710.385

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 710Controlling Weak Laser Beam to Nonlinear Focusing...

Controlling Weak Laser Beam to Nonlinear Focusing Based on Induced Nonlinear Effects

Abstract:

In this paper, we theoretically and experimentally investigated the controllable nonlinear focusing of the weak laser based on the induced nonlinear effects. We obtained an exact analytical solution to the weak laser beam when the high power laser beam is unchangeable during propagation. We also discussed the different pump parameters how to influence the focusing and experimentally partly verify the theoretical analysis. The results show that the focusing of weaker beam was jointly controlled by the power, width and wavelength of pump laser.