Abstract
Azobenzene polymers have been the subject of intensive research due to their unique and unexpected properties that allow various applications. Many interesting properties of azopolymers are caused by or related with photoinduced trans–cis isomerization of azo chromophores, where the azo group undergoes a transition from the lower energy trans-form to less stable cis-form through the excited states. One of the most investigated properties of the azobenzene polymers is the capability to generate surface relief gratings (SRG). The effort to understand the SRG formation process remains unclear until now in defiance to many explorations. This chapter presents a study concerning the azopolymer response to the pulse laser irradiation, in the context of the SRG inscription.
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