Photo-induced formation of surface relif in amorphous As₂S₃ films

摘要

In this report we study the formation of surface relief in arsenic trisulphide films under laser light radiation. Recording was performed with only one laser beam with lateral modulated polarisation direction. The photo-induced changes on the surface were initiated by DPSS laser light (532 nm). The formation process was studied measuring the depth and profile of recorded surface relief. Results are presented graphically as reliefs’ depth dependence on various recording parameters (polarisation configuration, exposure doze and recording geometry).