Investigation on optical, laser damage threshold and non linear optical behavior of creatininium p-toluenesulfonate crys
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Investigation on optical, laser damage threshold and non linear optical behavior of creatininium p-toluenesulfonate crystal for electro-optical applications V. Thayanithi1,2 and P. Praveen Kumar1,* 1 2
Department of Physics, Presidency College, Chennai 600 005, Tamilnadu, India Department of Physics, Karpagam Academy of Higher Education, Coimbatore, Tamilnadu, India
Received: 14 July 2020
ABSTRACT
Accepted: 18 October 2020
Organic proton transferred nonlinear crystal of Creatininium p-Toluenesulfonate (CPT) has crystallized in with the help of typical solvent evaporation method. The crystal system of grown CPT crystal is orthorhombic with noncentrosymmetric space group P212121 and its crystalline perfection of grown CPT crystals was identified by HRXRD. Functional groups of the grown CPT crystal were identified by FTIR. The optical transmittance of grown CPT crystal starts from the lower visible region to IR region. The surface damage of grown CPT crystal induced by laser was studied and their threshold value was calculated. The emission region of the grown CPT crystals is in yellow wavelength region. The mechanical strength of CPT crystals resides to soft material category. The Second order nonlinearity was studied and compared with standard KDP. The Differential scanning calorimetric (DSC) confirms grown CPT crystal is thermally stable upto 190 8C and the result confirm that the crystal has good thermal stability and it is suggested for electro-optical applications.
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Springer Science+Business
Media, LLC, part of Springer Nature 2020
1 Introduction Interesting factor of recent research over a decade is to develop a noncentrosymmetric Nonlinear Optical (NLO) crystals towards potential laser application in day-to-day application. The wide range applications are optical data storage, optical power limiting devices, frequency mixing, optical parametric oscillation, information processing etc. The Nonlinear
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https://doi.org/10.1007/s10854-020-04712-w
optical phenomenon arise as a repercussions of the modification of the optical properties of a noncentrosymmetric materials by presence of high electromagnetic radiation. NLO sources are based on the process of NLO either harmonic generation or optical rectification. Requirements of NLO materials are the high second order susceptibility and should satisfy the phase-matching condition [1–3].
J Mater Sci: Mater Electron
Organic molecules have raised a demand because of high nonlinear susceptibility due their p-electron conjugated moiety simulated by an electron acceptor group of one end to an electron donor group of another end, which forms push-pull conjugated structure [4]. The nonlinear polarization in organic molecules are mainly due to the strong interaction between strong electromagnetic radiation and their delocalized p electrons. The organic molecules are designed by the introduction of conjugated system of an electron withdrawing group (acceptor) or an electron donating group (donor) to increas
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