3D orientational structures in azopolymers studied by UV absorption method

UV absorption method supplemented by null ellipsometry technique is applied for the estimation of spatial orientational structures of azopolymer layer s. The components of the order parameter tensor of azobenzene fragments are estimated for the non-irradiated state as well as for the various irradiat ion doses. The method is applicable fbr the polymers with short lifetime of tis photoisomers and in-plane uniaxial structure at some moment of structu ral changes.