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Observations of higher-order laser-induced surface ripples on 〈111〉 germanium

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Abstract

We report the observation and analysis of higher-order optical diffraction patterns arising from linear combinations of the primary laser-induced gratings or ripples on germanium surfaces. These higher-order surface structures presumably arise from nonlinear interactions between superimposed primary gratings with different grating wave vectors. For gratings produced by normally incident laser beams on Ge 〈111〉 surfaces, the diffraction patterns exhibit a strongly hexagonal symmetry.

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Authors and Affiliations

  1. Edward L. Ginzton Laboratory, Stanford University, 94305, Stanford, CA, USA

    P. M. Fauchet & A. E. Siegman

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  1. P. M. Fauchet
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  2. A. E. Siegman
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Fauchet, P.M., Siegman, A.E. Observations of higher-order laser-induced surface ripples on 〈111〉 germanium. Appl. Phys. A 32, 135–140 (1983). https://doi.org/10.1007/BF00616609

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  • DOI: https://doi.org/10.1007/BF00616609

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