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ISSN: 1546-9239 (Print)
ISSN: 1554-3641 (Online)
Research Article Open Access

Demonstration of Optical Phase-conjugation in Methyl Green Dye-doped Thin Film

T. Geethakrishnan and P. K. Palanisamy

Abstract

Optical Phase-Conjugation (OPC) has been observed in Methyl Green (MG) dye sensitized gelatin films in Degenerate Four-Wave Mixing (DFWM) configuration at 633 nm radiation from a He-Ne laser of total power 35 mW. The mechanism of Phase-Conjugate (PC) wave generation associated with this dye-doped system was discussed. The dependence of the PC wave generation on the incident angle between the forward-pump and the probe beams and time of evolution were also studied. A maximum phase-conjugate beam reflectivity of about 0.13% has been observed in this dye-doped gelatin films.

American Journal of Applied Sciences
Volume 2 No. 8, 2005, 1228-1231

DOI: https://doi.org/10.3844/ajassp.2005.1228.1231

Submitted On: 8 August 2005 Published On: 31 August 2005

How to Cite: Geethakrishnan, T. & Palanisamy, P. K. (2005). Demonstration of Optical Phase-conjugation in Methyl Green Dye-doped Thin Film. American Journal of Applied Sciences, 2(8), 1228-1231. https://doi.org/10.3844/ajassp.2005.1228.1231

Open AccessCopyright: © 2005 T. Geethakrishnan and P. K. Palanisamy. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Keywords

  • Optical phase-conjugation
  • laser-induced gratings
  • organic dyes
  • four-wave mixing