z-Scan characterization of zwitterionic chromophores for optoelectronic switching

Single 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 or...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2011-09, Vol.104 (3), p.947-951
Main Authors: Skrzypczak, U., Williams, G. V. M., Miclea, M., Bhuiyan, M. D. H., Janseens, S., Schweizer, S.
Format: Article
Language:English
Subjects:
Beams (radiation)
Characterization and Evaluation of Materials
Chromophores
Condensed Matter Physics
Figure of merit
Machines
Manufacturing
Nanotechnology
Optical and Electronic Materials
Optoelectronics
Organic compounds
Physics
Physics and Astronomy
Polycarbonates
Processes
Refractive index
Surfaces and Interfaces
Switching
Thin Films
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Summary:Single 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 n 2 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 −18  m 2 /W.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-011-6450-9