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The Two Mode Thermal Klein–Gordon Equation for Ultra-Short Laser Pulse Interaction With Matter
J. Marciak-Kozlowska, M. Pelc and M. Kozlowski

In this paper the two mode thermal Klein–Gordon equation was derived and solved. It was shown that the interaction of ultra-short laser pulses with matter leads to a two mode excitation of electrons and phonons, which then diffuse with finite speeds.

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