Effect of polarization state of laser irradiation on absorption in 1-((4-(phenyldiazenyl)‎phenyl)‎ azonaphthalen-2-ol doped in poly(methyl 2-methylpropenoate)‎ polymeric thin films

Abstract EN

The excitation of the dye molecules by polarized light induces an anisotropy in Poly (methyl 2-methylpropenoate)/1-((4-(phenyldiazenyl) phenyl) azonaphthalen – 2 - ol polymeric thin films.

The orientation of the 1-((4-(phenyldiazenyl) phenyl) azonaphthalen-2-ol molecules was controlled by the polarization of the laser electric field, which enabled the contrast ratio of the dye to be obtained by photooptically switching.

The maximum absorbance (parallel and perpendicular to the polarization state of the laser beam), contrast ratio of nonionic diazo 1-((4-(phenyldiazenyl) phenyl) azonaphthalen-2-ol dye in Poly (methyl 2- methylpropenoate) polymeric host were investigated using Ar-ion polarized laser light.

Results showed that the parallel probe beam absorbance (A||) is much greater than that of the perpendicular (A^) one.

The high value of the contrast ratio reveals that Poly (methyl 2-methylpropenoate) / 1- ((4- (phenyldiazenyl) phenyl) azonaphthalen-2-ol is a promising candidate for photoswitching applications