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Photoisomerization polarizability switching

PHOTOISOMERIZATION EFFECTS IN ORGANIC NONLINEAR OPTICS PHOTO-ASSISTED POLING AND DEPOLINGAND POLARIZABILITY SWITCHING... [Pg.271]

FIG. 8.8 Nonlinear polarizability switching by reversible photoisomerization of the NLO azo chromophore in PI-2 observed by EFISH, a feature that leads to all-optlcaHight modulation of the SH signal of the Pf-2 polymer. The irradiation and sample conditions are those explained in dte caption to Figure 8,6, and the moments of turning on and off the irradiation are indicated. Adapted from reference 9, and redrawn by permission of ACS. [Pg.282]

One concludes from these facts that pseudo-stilbenes are not suitable for persistent switching of the molecular form. Any information based on E-Z isomerization is quickly lost. If, however, fast interconversion of E- and Z-forms is the aim, as it is in the alignment of the higher-order polarizability tensor of donor/acceptor azobenzenes, then thermal isomerization supports the photoisomerization process. [Pg.30]

See other pages where Photoisomerization polarizability switching is mentioned: [Pg.271]    [Pg.271]    [Pg.272]    [Pg.280]    [Pg.271]    [Pg.271]    [Pg.272]    [Pg.280]    [Pg.279]    [Pg.280]    [Pg.279]    [Pg.280]   
See also in sourсe #XX -- [ Pg.280 , Pg.281 ]

See also in sourсe #XX -- [ Pg.280 , Pg.281 ]



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