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Conference Paper Balancing the Trade-Off Between Absorption And Nonlinearity In NLO Polymers For Practical Applications
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Authors
Min-Su Kim, Jung Jin Ju, Seung Koo Park, Jung Yun Do, Myung-Hyun Lee
Issue Date
2005-08
Citation
Linear and Nonlinear Optics of Organic Materials V (SPIE 5935), v.5935, pp.1-8
Publisher
SPIE
Language
English
Type
Conference Paper
DOI
https://dx.doi.org/10.1117/12.618182
Abstract
Despite many advantages toward nonlinear optical (NLO) waveguide devices, NLO polymers have not been adopted successfully into practical wavelength converters due to their high absorption losses. Empirical and theoretical understandings about NLO susceptibilities imply the fundamental trade-off between optical absorption and nonlinearity. Our theoretical analysis elucidates the effect of absorption losses on second-harmonic generation, difference-frequency generation, and cascaded wavelength conversion. We compare analytically maximum conversion efficiencies for those NLO processes with several NLO polymers and suggest that the cascaded wavelength conversion is a plausible application of NLO polymers. Furthermore, we found a convincing approach for the development of NLO polymers with the optimum combination of high optical nonlinearity and low material absorption, which leads us to realize efficient polymeric wavelength converters.
KSP Keywords
Conversion efficiency(C.E.), High absorption, Material absorption, Nonlinear optical, Optical nonlinearity, Second Harmonic Generation, Theoretical Analysis, Trade-off, Waveguide devices, difference frequency generation, optical absorption