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Single and three pulse photoselection of dye probes in nematic liquid crystals

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Figure

Figure 1. (a) A schematic representation of the experimental arrangement and 180� H[FLWDWLRQ�GHWHFWLRQ JHRPHWU\ IRU VLQJOH SXOVHSRODULVHG SKRWRVHOHFWLRQ� 7KH H[FLWDWLRQ SRODULVDWLRQ DQJOH � LV YDULHG WR FUHDWH YDU\LQJ GHJUHHV RI F\OLQGULFDOO\ V\PPHWULF DQG
Figure 2. Excitation polarisation dependence of the cylindrically symmetric and asymmetric contributions to the initialfluorescence anisotropy for oxazine 4 in 5CB (solid lines) and for an isotropic system (dashed lines)
Figure 3. In an isotropic medium, three beam photoselection allows for the control of excited state alignment whilst retainingcylindrical symmetry as beam ratio B(I) is varied
Figure 4. A plot of the variation in the initial anisotropy with angle of incidence (ground state moments
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