Synthesis and optical properties of Azo-methacrylic copolymers with rigid tolane moiety

Enhanced photochemical‐shift of reflection band from an inverse opal film based on larger birefringent polymer liquid crystals: Effect of tolane group on the photochemical shift behavior

“…It is well known that a tolane group has larger birefringence because of its rigid π‐conjugated electronic structure 29–31. Furthermore, the azobenzene copolymers having tolane group were reported to show cooperative molecular reorientation during light irradiation 32–35. Therefore, it is expected that the copolymer having both azobenzene and tolane groups induces photo‐orientation and larger change in the birefringence.…”

Holographic gratings formed in photosensitive polymer materials with a liquid crystalline monomer

“…It is possible to form holographic gratings in photopolymer systems via a singlestep process at a relatively high speed [5,6]. Several types of photopolymer systems for holographic recording have been reported [7][8][9][10]. Photopolymeric materials have the advantages of selfdevelopment, high angular selectivity, and high resolution, which make them more suitable for applications, such as optical storage, holographic optical elements, optical computing, and holographic interferometry [11][12][13].…”