Photoinduced Optical Anisotropy in Azo-Dye Doped Polyimide Films

• Autorzy: Miniewicz A. , Komorowska K. , Sek .D. , Schab-Balcerzak E. , Solyga M.
• Języki publikacji: EN

Abstrakty

EN

Using a two-wave mixing technique supplemented by the illumination of the second laser, we studied the dynamics of the photoinduced anisotropy in polyimide free-standing films doped by azo-dyes containing one or two N=N bonds.We have measured the characteristics of grating recording using a He-Ne laser source (_ = 632.8 nm) under influence of light coming from a cw YAG laser doubled in frequency (_ = 532 nm). The experiments in polyimide-Disperse Red 1 (4-[N-ethyl-N-(2-hydroxyethyl)]amino-4_-nitro-azobenzene) system revealed complex kinetics of photoinduced birefringence leading to grating recording and light self-diffraction. The two main processes were identified during the grating build-up in this high Tg polymer matrix. Preliminary results on possibility of dynamic color and polarization holographic recording in polyimide containing newly synthesized molecule having two N=N bonds 1,3 diamino-4-azo(4_-nitroazobenzene)benzene are also presented.

Słowa kluczowe

EN

polyimide; holography; azo dye; molecular orientation; photoinduced reorientation

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2002
• Tom: Vol. 76 / nr 2-3
• Strony: 395--407
• Opis fizyczny: Bibliogr. 26 poz., rys.

Twórcy

autor

Miniewicz A.

• Institute of Physical and Theoretical Chemistry, Wrocław University of Technology 50-370 Wrocław, Poland

autor

Komorowska K.

• Institute of Physical and Theoretical Chemistry, Wrocław University of Technology 50-370 Wrocław, Poland

autor

Sek .D.

• Centre of Pofymer Chemistry, Polish Academy of Sciences, 41-819 Zabrze, Poland

autor

Schab-Balcerzak E.

• Centre of Pofymer Chemistry, Polish Academy of Sciences, 41-819 Zabrze, Poland

autor

Solyga M.

• Institute of Physical and Theoretical Chemistry, Wrocław University of Technology 50-370 Wrocław, Poland

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