Discrete velocities of slow soliton-like excitations in copper: comparison of two independent experimetal results

Eugene M. Kudriavtsev; Sergey D. Zotov

doi:10.1117/12.514923

2 September 2003 Discrete velocities of slow soliton-like excitations in copper: comparison of two independent experimetal results

Eugene M. Kudriavtsev, Sergey D. Zotov

Author Affiliations +

Proceedings Volume 5121, Laser Processing of Advanced Materials and Laser Microtechnologies; (2003) https://doi.org/10.1117/12.514923
Event: Laser Processing of Advanced Materials and Laser Microtechnologies, 2002, Moscow, Russian Federation

Abstract

Single exciting pulse with a threshold about (10-100)kW/cm² produces in solids (and even possible more generally in condense matter) the whole series from more than i=30 of solitary waves - soliton-like excitations as it was shown in our group since first findings in 1992. They are spread on a stuff with constant velocity U_i, the values by which one "are quantized" - decrease twice for each subsequent (i+1)-th component, and all - on nine orders, starting from a longitudinal speed of sound v_l. With the purpose of confirmation and study of this fundamental property there were analyzed results for poly-crystal copper samples obtained by different methods and in two different labs. Many components of laser-induced solitary wave structure were registered in copper by IR-detector and thermocouple. Their velocities U_i(with i= 10-17, 29-31) less than longitudinal speed of sound v_l are in agreement with expression (expression available in paper) The first part of results was measured in the P.N. Lebedev Physical Institute. We obtained another part of results from measurements of heat conduction, made in Prokhorov General Physics Institute. This work was sponsored as project 00-02-17249 by RFBR.

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Eugene M. Kudriavtsev and Sergey D. Zotov "Discrete velocities of slow soliton-like excitations in copper: comparison of two independent experimetal results", Proc. SPIE 5121, Laser Processing of Advanced Materials and Laser Microtechnologies, (2 September 2003); https://doi.org/10.1117/12.514923

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