Poling of visible chromophores in millimeter-thick PMMA host

We report the direct high-voltage poling of the chromophores 4-methoxy-4’-nitrostilbene (MNS) and 2-methyl-4-nitroaniline (MNA) in a 1.2 mm thick polymethylmethacrylate (PMMA) host. The DC fields used to pole the guest-host system varied in strength from 58 to 67 Vμm−1, and the presence of chromophore orientation in the poled samples was subsequently analyzed via Maker fringe analysis. We observed values of the SHG coefficient d33 of 0.7 to 1.75pm/V at 532nm.