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dc.contributor.advisorKonu, Jari
dc.contributor.authorAyeah, Vera
dc.date.accessioned2019-05-02T07:16:16Z
dc.date.available2019-05-02T07:16:16Z
dc.date.issued2019
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/63692
dc.description.abstractThe present work is committed to organic nonlinear optical materials (NLO materials) and their prospective applications. The literary part consists of the theoretical background of organic NLO materials. Properties of organic and inorganic compounds as NLO materials are compared and the reason why most commercial NLO products are inorganic compounds despite the numerous and better NLO properties of organic molecules over inorganic molecules is justified. Characteristics of good NLO crystals such as phase matchability, wide optical transparency second order nonlinear susceptibility, thermal and chemical stability, availability of large single crystals and environmental stability, high second harmonic generation (SHG) efficiency, high mechanical strength and high laser damage resistance are discussed in detail. Second order nonlinear optical phenomena for instance SHG, optical mixing and optical parametric oscillation are considered. Attention is paid to amino acid based compounds and quanidine compounds as organic NLO materials. In the experimental part, pyridinium salts of inorganic anions were synthesized and the structures of the products were identified with the help of 1H NMR spectroscopy and Xray crystallography. The inorganic acids used during the synthesis are HBF4, H3PO4, HNO3 and H2SO4. Synthesis with H2SO4 was carried out twice in 1:1 and 1:2 molar ratios with the pyridine compounds. The SHG efficiencies of the synthesized compounds were investigated using the Kurtz and Perry powder method. Compounds 26, 28, 30, 32, 35, 39, 44, 46 and 50 showed some NLO activity by displaying some SHG efficiencies with intensities about 1-5% that of urea reference.en
dc.format.extent152
dc.language.isoen
dc.subject.othernonlinear optical activity
dc.subject.othersecond harmonic generation
dc.subject.otherguanidine compounds
dc.subject.otherpyridinium salts of inorganic anions
dc.titleSecond order nonlinear optical activity of amino acids, guanidines and pyridinium salts of inorganic anions
dc.identifier.urnURN:NBN:fi:jyu-201905022369
dc.type.ontasotMaster’s thesisen
dc.type.ontasotPro gradu -tutkielmafi
dc.contributor.tiedekuntaMatemaattis-luonnontieteellinen tiedekuntafi
dc.contributor.tiedekuntaFaculty of Sciencesen
dc.contributor.laitosKemian laitosfi
dc.contributor.laitosDepartment of Chemistryen
dc.contributor.yliopistoJyväskylän yliopistofi
dc.contributor.yliopistoUniversity of Jyväskyläen
dc.contributor.oppiaineEpäorgaaninen ja analyyttinen kemiafi
dc.contributor.oppiaineInorganic and Analytical Chemistryen
dc.rights.copyrightJulkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty.fi
dc.rights.copyrightThis publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.en
dc.contributor.oppiainekoodi4031
dc.subject.ysokiteet
dc.subject.ysoaminohapot
dc.subject.ysoSURFACE
dc.subject.ysoreaktiot
dc.subject.ysokontaktit
dc.subject.ysocrystals
dc.subject.ysoamino acids
dc.subject.ysoSURFACE
dc.subject.ysoreactions
dc.subject.ysocontacts


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