Nonlinear photoinduced transmission in polymeric poly (Methyl Methacrylate)‎ doped cerasin red thin films

Abstract EN

Investigation of nonlinear photoinduced transmission in polymeric Poly (methylmethacrylate) doped Cerasin Red thin films was performed with visible polarized parallel and perpendicular laser light.

The change of transmission in Poly (methyl methacrylate) doped Cerasin Red samples is observed upon illumination.Results showed that the level of transmission and the time to achieve the saturation level increased with respect to pump beam intensity.

Transmission increased in an exponential fashion with increasing the pump intensity.

Transmitted parallel polarized laser light is greater by one order of magnitude than that of the transmitted perpendicular polarized laser light.

Photobleaching effect was observed at 4 mWof pump beam intensity, which was attributed to the degradation of the chromophore molecules