Ordering of azobenzenes by two-photon isomerization |
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| Authors: | Ishitobi Hidekazu Sekkat Zouheir Kawata Satoshi |
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| Institution: | Nanophotonics Laboratory, RIKEN (The Institute of Physical and Chemical Research), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. ishitobi@riken.jp |
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| Abstract: | We report on light induced orientation by two-photon isomerization of azobenzenes in films of polymer. The dynamics of isomerization and orientation by one-photon absorption and two-photon absorption (TPA) are similar, and TPA creates a degree of molecular orientation which is comparable to that achieved by single-photon isomerization, in agreement with the theoretical predictions of two-photon isomeric orientation. |
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