An Investigation into the Role of Capping on Second Harmonic Generation from Nonlinear Organic Polymer and Guest-Host Thin Films by In-Situ Poling
作者： P. M. Ushasree , M. Szablewski
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摘要: In attempts to fabricate thermally stable second-order nonlinear polymer thin films, we have investigated the second harmonic generation (SHG) from both and guest-host films. We also role of capping on SHG, temporal stability relaxation dipole alignment. Corona poling techniques were employed orient dopants into noncentrosymmetric structure required obtain SHG. The effect with a polymeric encapsulant below glass transition temperature polymers unpoled corona poled films was studied. Capping guest host resulted in high SHG good stability. signal falls drastically during first 8 days after while no further significant decay observed about 33 days. Our investigations identified characteristics for non-con-ductive surface.
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