Growth and characterization of new semiorganic nonlinear optical zinc guanidinium sulfate single crystal

Growth and Characterization of Guanidinium Trifluoroacetate – Second Harmonic Generation from a Centrosymmetric Crystal

“…The guanidinium cations can also be used in designing molecular complexes with exactly planned chemical and physical properties suitable for nonlinear optics (NLO) [7]. For example, zinc guanidinium sulfate [8], guanidinium L-monohydrogen tartrate [9] and many other guanidine based compounds have been studied as promising materials for second harmonic generation (SHG). Herein, GTFA crystals have been grown by the submerged seed solution method at room temperature.…”

Synthesis, Crystal Growth, Structural, Optical, Thermal and Mechanical Properties of Semiorganic Nonlinear Optical Material: L-Cystine Dihydrochloride

“…Inorganic crystals have excellent mechanical and thermal properties but possess relatively low optical nonlinearities because of the lack of -electron delocalization. Combining the high optical nonlinearity and chemical flexibility of organics with thermal stability and excellent transmittance of inorganics, semiorganic materials have been proposed and are attracting a great deal of attention in the field of nonlinear optics 3,4 .…”

Studies on L-cystine hydrobromide single crystals for nonlinear optical applications

“…[1]. Recently, a variety of semiorganic crystals for NLO applications have been developed [2][3][4][5]; among them, the amino acids are found to have a definite edge over other materials due to the following special features: (i) the absence of strongly conjugated bonds and (ii) the zwitterionic nature of the molecules, which favours a wide transparency window in the visible region and physicochemical stability of the materials. In view of this, a series of amino acids used as semi-organic materials, such as L-arginine phosphate [6], L-histidine hydrobromide [7], L-cystine hydrochloride [8], L-valine hydrochloride [9], betaalanine zinc chloride [10] and L-phenylalanine L-phenylalaninium perchlorate [11] as potential NLO crystals has been reported.…”