From Event: SPIE Organic Photonics + Electronics, 2015
We studied the photo-induced dynamics in a LC polymer film including azobenzene by using a time-resolved and a
microscopic technique. The film was confined in a liquid crystal cell, while it is a photomobile film under a free standing
condition, which is triggered by the photoisomerization of azobenezene. From the result of the time-resolved
measurements, the change inside the film induced by UV irradiation was highly anisotropic polarization change.
Microscopic observation revealed that the film was consisted of ordered and disordered region with a patched structure,
and the UV induced change was travelled in the ordered region on the order of seconds.
Kenji Katayama, Shota Kuwahara, and Tomiki Ikeda, "Structural dynamics in azobenzene liquid crystal polymer films studied by microscopic and time-resolved technique," Proc. SPIE 9565, Liquid Crystals XIX, 95650I (Presented at SPIE Organic Photonics + Electronics: August 09, 2015; Published: 5 September 2015); https://doi.org/10.1117/12.2186414.
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