We report the observation of a self-written waveguide inside a bulk methylene blue sensitized poly/vinyl alcohol)/acrylamide photopolymer material. Light from a low power He–Ne laser is focused into the material, and the evolution of the beam is monitored. The refractive index of the material is modulated in the region of high intensity due to photobleaching and photopolymerization effects occurring in the material. As a result, the beam propagates through the medium without any diffraction effects.
© 2008 Optical Society of America
Original Manuscript: July 8, 2008
Revised Manuscript: October 20, 2008
Manuscript Accepted: October 30, 2008
Published: December 3, 2008
C. P. Jisha, V. C. Kishore, Beena Mary John, V. C. Kuriakose, K. Porsezian, and C. Sudha Kartha, "Self-written waveguide in methylene blue sensitized poly(vinyl alcohol)/acrylamide photopolymer material," Appl. Opt. 47, 6502-6507 (2008)