
AbstractWe describe experiments to study the propagation of phonon solitons in crystalline solids. A picosecond light pulse is used to generate a short strain pulse. As this pulse propagates, its shape changes as a result of phonon dispersion and elastic non‐linearity. After traveling a sufficient distance, the pulse breaks up into a number of solitons. The amplitude and number of these solitons are in excellent agreement with theoretical expectations. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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