Manifestation of weak localization and long-range correlation in disordered wave functions from conical second harmonic generation

Y. F. Chen, K. W. Su, T. H. Lu, K. F. Huang

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We experimentally demonstrate that the near-field patterns of conical second harmonic generation of a laser in random domain structures can be used to explore the spatial structure of two-dimensional disordered wave functions with weak localization. The statistics of the experimental near-field patterns agree very well with the theoretical distributions. In addition to the short-range correlation, the localization effects are found to contribute a nearly constant value to the long-range correlation. The result of this Letter also confirms the possibility of using conical second harmonic generation as a diagnostic tool for topographical characterization of crystals.

Original languageEnglish
Article number033905
JournalPhysical Review Letters
Issue number3
Publication statusPublished - 2006 Jan 27


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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