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TitleZ-scan characterization of zwitterionic chromophores for optoelectronic switching
Publication TypeJournal Article
Year of Publication2011
AuthorsSkrzypczak, U., Williams G.V.M., Miclea M., Bhuiyan M.D.H., Janseens S., and Schweizer S.
JournalApplied Physics A: Materials Science and Processing
Pagination947 - 951
Date Published2011
ISSN09478396 (ISSN)
KeywordsAmorphous films, Amorphous polycarbonates, Chromophores, Device application, Refractive index, Second-order nonlinear optical, Single beam, Third order, Two photon processes, Two-photon absorptions, Z-scan measurement
AbstractSingle beam z-scan measurements have been made on films containing amorphous polycarbonate and the zwitterionic chromophore, PYR-3, that has a very high second order nonlinear optical (NLO) figure of merit. The third order NLO figure of merit is ≈ 1.6 at 1030 nm and is comparable to that found in organic compounds optimized for high n2 values. The two-photon absorption coefficient is 2.1 × 10-12 m/W, which is very low and advantageous for NLO device applications. The third order NLO refractive index is -1.4×10-18m2/W. © Springer-Verlag 2011.

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