2c02 Control of surface relief structure in azobenzene polymer films induced by two-beam interference irradiation

Abstract

It’s well known that surface relief (SR) structures in azobenzene polymer films are fabricated due to molecular migration by holography with intensity and polarization patterns of two beams interference. Blazed SR gratings, which exhibit asymmetric SR structures, exhibit asymmetrical diffraction properties, so those are useful as diffraction optical devices. Because molecular migration occurs symmetrically according to the symmetrical interference pattern, the blazed SR formation using conventional holographic techniques have not been reported. In this work, we demonstrated control of SR structure in azobenzene polymer films using controlled polarized two-beam interference.