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Chemical structures of the materials used.
Absorption spectra of thin films of (a) DR1 in PS, (b) DR1 in PVPh, and (c) DR1 in P4VP.
Photoinduced birefringence as a function of dye concentration for DR1 in PS, P4VP, and PVPh. The reported values are the saturation values of the birefringence while the writing beam is applied on the sample. The writing beam intensity was .
Writing/relaxation curves for samples containing of DR1 in PS, PVPh, and P4VP. The irradiation period was and the writing beam intensity was .
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