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Birefringence Properties and Surface Relief Grating Formation on Methylacrylate Polymers with Photochromic Side Chains

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Figure

Table 1: Wavelength of maximum absorbance λ max and dipole moment μ of chromophores
Fig. 3 The experimental setup for measurements of  light-induced birefringence. The polarization  direction of pump beam is in 45° with respect to  polarizer and analyzer direction of probe beam
Fig. 6 AFM profile of the formed SRG on the azo- azo-polymer film.
Fig. 8 Diffraction efficiencies of SRG formed on  the surface of azo polymer films with different Tg  as a function of time
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