Evaluation of nonlinear optical polymers for second-harmonic generation: toward the balance of absorption and nonlinearity against intrinsic trade-off |
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| Institution: | 1. Basic Research Laboratory, Electronics and Telecommunications Research Institute, 161 Gajeong-dong, Yuseong-gu, Daejeon 305-700, Republic of Korea;2. Chemistry Education Major, Pusan National University, Busan 609-735, Republic of Korea;1. School of Mathematical Science, Inner Mongolia University, Hohhot, Inner Mongolia 010021, PR China;2. School of Mathematics and Statistics, Inner Mongolia University of Finance and Economics, Hohhot, Inner Mongolia 010071, PR China;1. Faculty of Chemistry and Technology, University of Split, Croatia;2. Faculty of Science, University of Split, Croatia;3. Institute of Oceanography and Fisheries, Split, Croatia;4. Laboratoire Matières et Systèmes Complexes, UMR 7057 du CNRS and Université de Paris Cité, Paris, France;5. Doctoral study of Biophysics, Faculty of Science, University of Split, Croatia;1. Hubei Province Key Laboratory of Coal Conversion and New Carbon Material, Wuhan University of Science and Technology, Wuhan 430081, China;2. College of Life Sciences and Health, Wuhan University of Science and Technology, Wuhan 430081, China;1. Division of Polymer and Chemical Engineering Technology, Institute of Technology University of Moratuwa, Diyagama, Homagama, Sri Lanka;2. Centre for the Future Materials, University of Southern Queensland, Toowoomba, Australia;3. School of Mechanical and Electrical Engineering, Faculty of Health, Engineering & Sciences, University of Southern Queensland, Toowoomba, Australia;4. Department of Engineering Technology, Faculty of Technological Studies, Uva Wellassa University, Badulla, Sri Lanka;1. University of Bucharest, Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, 90-92 Panduri Road, Bucharest, Romania;3. Cytogenomic Medical Laboratory, 35 Calea Floreasca, 014462 Bucharest, Romania;4. National Institute for Research and Development in Biological Sciences, 296 Splaiul Independentei, 060031 Bucharest, Romania;5. University of Bucharest, Faculty of Biology, Department of Microbiology, 1-3 Aleea Portocalelor St., 60101 Bucharest, Romania;6. “Carol Davila” University of Medicine and Pharmacy, Center for Research Synthesis and Organic Chemistry, 6-Traian Vuia St., Bucharest, Romania;7. University of Bucharest, Faculty of Chemistry, Department of Inorganic Chemistry, 23 Dumbrava Rosie, Bucharest, Romania |
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| 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 susceptibility imply the fundamental trade-off between optical absorption and nonlinearity. Our theoretical analysis elucidates the effect of absorption losses on second-harmonic generation (SHG). We compare analytically maximum conversion efficiencies for several NLO polymers and 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 SHG devices. |
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