Structural features of self-action of laser radiation in the electromagnetic induced transparency mode

Journal Article · Thu Nov 15 00:00:00 EST 2007 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776107110040· OSTI ID:21075670

Litvak, A G; Mironov, V A ^[1]

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1. Russian Academy of Sciences, Institute of Applied Physics (Russian Federation)

Structural features of the laser radiation self-focusing dynamics in the electromagnetic induced transparency (EIT) band are studied for an atomic system with a {lambda}-type energy level diagram. Effective nonlinearity of an EIT medium is manifested primarily as nonlinear dispersion (dependence of the group velocity on the wave amplitude). Qualitative analysis of the dynamics of self-action of laser pulses, which is confirmed by numerical simulation, shows that nonlinear evolution of a 3D wave packet follows the scenario of self-focusing, which serves as the background on which the envelope profile turnover and the formation of a shock wave occur at an advanced rate.

• OSTI ID: 21075670
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 105, Issue 5; Other Information: DOI: 10.1134/S1063776107110040; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLITUDES
DIAGRAMS
ENERGY LEVELS
EVOLUTION
FOCUSING
LASER RADIATION
LASERS
NONLINEAR PROBLEMS
OPACITY
PULSES
SHOCK WAVES
SIMULATION
WAVE PACKETS