Temat: optical materials - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Growth and study of nonlinear optical crystals at the Hungarian Academy of Sciences
Autorzy:: Földvári, I.
Polgár, K.
Péter, A.
Beregi, E.
Szaller, Z.
Powiązania:: https://bibliotekanauki.pl/articles/308743.pdf
Data publikacji:: 2000
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: crystal growth
nonlinear optical materials
Opis:: The former Research Laboratory for Crystal Physics continues the growth and defect structure investigation of nonlinear optical single crystals in a new organization, as a part of the Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences. The aim of the activity is to prepare specific crystals for basic and applied research as well as for applications. We improve the quality or modify the properties of well known nonlinear oxide and borate crystals and develop new materials. The principle nonlinear optical crystals in our profile are the followings: Paratellurite (TeO2), congruent, Mg-doped and stoichiometric lithium niobate (LiNbO3), a variety of sillenite structured crystals (Bi12MeO20, Me=Si, Ge, Ti, etc.), bismuth tellurite (Bi2TeO5) and nonlinear borates (BBO-beta-BaB2O4, LBO-LiB3O5, LTB-Li2B4O7, CLBO-CsLiB6O10 and YAB-YAI3(BO3)4). Details of the crystal preparation and the major achievements are discussed in the paper.
Źródło:: Journal of Telecommunications and Information Technology; 2000, 1-2; 37-41
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Investigation on Nucleation Kinetics, Growth and Nonlinear Optical Properties of L-Cystine Hydrochloride Crystal
Autorzy:: Manivannan, D.
Kirubavathi, K.
Selvaraju, K.
Powiązania:: https://bibliotekanauki.pl/articles/1029827.pdf
Data publikacji:: 2018-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: crystal growth
nucleation kinetics
optical materials
NLO
Opis:: The semiorganic nonlinear optical crystal of amino-carboxyl acid family, L-cystine hydrochloride (LCHCl) was successfully grown from its aqueous solution by the slow evaporation solution growth method. The solubility, metastable zone width and induction period were determined for the first time experimentally and there by the possibility of growing bulk crystals of LCHCl using deionized water as solvent. The induction period was recorded for the different supersaturation ratios (S=1.2, 1.3, 1.4, and 1.5), which reveals that the induction period of LCHCl decreases with increase in supersaturation. The nucleation kinetic parameters such as critical free energy, change of volume free energy, critical radius, number of molecules in the critical nucleus and nucleation rate have been evaluated for LCHCl crystals. The interfacial energy values of LCHCl were determined for different supersaturation ratio by means of varying temperatures. The single crystal X-ray diffraction gives the lattice parameters value of the grown crystals. The second harmonic generation efficiency was confirmed by the Kurtz-Perry powder method. The laser damage threshold energy of the grown crystal indicates that grown crystal has excellent resistance to laser radiation also compared with known other nonlinear optical crystals.
Źródło:: Acta Physica Polonica A; 2018, 133, 1; 63-67
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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