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VOLUME 31 (1980) | ISSUE 6 | PAGE 377
Inversion of the wave front by a surface
A method of wave-front inversion produced by a profiled destruction of an aluminum film sputtered on a glass surface is used. The coefficient of reflection to an inverted wave as a result of a 30% inversion reached 39% in total energy and 130% in instantaneous intensity. A theoretical model, which satisfactorily accounts for the power and for the dynamics of the process, is proposed.