Click here to view fulltext PDF

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

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

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.

T Geethakrishnan¹ P K Palanisamy¹

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

Published

February 2006

Manuscript received

4 August 2005

Manuscript revised

8 November 2005

Accepted

17 December 2005