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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/066/02/0473-0478

    • Keywords

       

      Optical phase-conjugation; laser-induced gratings; dye-doped thin films; four-wave mixing

    • Abstract

       

      Optical phase-conjugation (OPC) has been demonstrated in erioglaucine (acid blue 9) dye-doped gelatin films via continuous-wave degenerate four-wave mixing (DFWM) using a low-power He-Ne laser at 633 nm. DFWM and holographic processes are found to contribute to the observed phase-conjugate signal. A maximum phase-conjugate beam reflectivity of about 0.24% has been observed in these dye-doped gelatin films.

    • Author Affiliations

       

      T Geethakrishnan1 P K Palanisamy1

      1. Centre for Laser Technology, Department of Physics, Anna University, Chennai - 600 025, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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