1 History of discovery of the low temperature phase barium metaborate （BBO）——an excel-lent new-type ultraviolet radiation frequency-doubling crystalline materialTHE first laser excitation in 1960 with ruby （α-Al...1 History of discovery of the low temperature phase barium metaborate （BBO）——an excel-lent new-type ultraviolet radiation frequency-doubling crystalline materialTHE first laser excitation in 1960 with ruby （α-Al<sub>2</sub>O<sub>3</sub>: Cr） as a laser crystal and the first dou-bling of frequency （347. 15 nm） in 1961 by irradiating quartz crystal （α-SiO<sub>2</sub>） with a 694. 3nm laser beam have laid the basis for the study of laser and nonlinear optical （NLO） crystals,展开更多
The title compound 4, 5-bis ( 2,-dinitrophenylthio )-1, 3-dithiole-2-thione [C3S5(C6H3N2O4)2] crystallizes in the orthogonal system, space group P212121,with a=10. 134(3) , b=20. 488(4), c=9. 656(3)A , V=2005. 1 A3, D...The title compound 4, 5-bis ( 2,-dinitrophenylthio )-1, 3-dithiole-2-thione [C3S5(C6H3N2O4)2] crystallizes in the orthogonal system, space group P212121,with a=10. 134(3) , b=20. 488(4), c=9. 656(3)A , V=2005. 1 A3, D_c=1. 76 g/cm￣3 , Z=4, M.=530. 56, λ=0. 71069 A, F(000)= 1072 , μ=6.1 cm￣(-1), T=296K.Final R= 0. 038, R.= 0. 045 for 1799 reflections with I≥3.5σ(I). In this nonplanar neutral molecule both nitrobenzol rings are approximately perpendicular to the dithiole ring with an asymmetric configuration.展开更多
Materials with large non-linear optical properties are good candidates for applications in the fields of telecommunications, solar energy conversion, laser treatment and so on. In the present study, a crystal of Ammon...Materials with large non-linear optical properties are good candidates for applications in the fields of telecommunications, solar energy conversion, laser treatment and so on. In the present study, a crystal of Ammonium Dihydrogen Orthophosphate doped with Acridine Orange, possessing excellent nonlinear optical properties were grown by the slow solvent evaporation technique at 25°C using a constant temperature bath. Ammonium dihydrogen orthophosphate doped with Acridine Orange were synthesized in a large quantity via solution growth method using aqueous mixtures of Ammonium Dihydrogen Orthophosphate and Acridine Orange. The morphological characteristics were studied by field emission scanning electron microscopy which revealed that the synthesized product possesses needle shaped microstructures. The mechanical properties are studied by Vicker’s micro hardness test.展开更多
文摘1 History of discovery of the low temperature phase barium metaborate （BBO）——an excel-lent new-type ultraviolet radiation frequency-doubling crystalline materialTHE first laser excitation in 1960 with ruby （α-Al<sub>2</sub>O<sub>3</sub>: Cr） as a laser crystal and the first dou-bling of frequency （347. 15 nm） in 1961 by irradiating quartz crystal （α-SiO<sub>2</sub>） with a 694. 3nm laser beam have laid the basis for the study of laser and nonlinear optical （NLO） crystals,
文摘The title compound 4, 5-bis ( 2,-dinitrophenylthio )-1, 3-dithiole-2-thione [C3S5(C6H3N2O4)2] crystallizes in the orthogonal system, space group P212121,with a=10. 134(3) , b=20. 488(4), c=9. 656(3)A , V=2005. 1 A3, D_c=1. 76 g/cm￣3 , Z=4, M.=530. 56, λ=0. 71069 A, F(000)= 1072 , μ=6.1 cm￣(-1), T=296K.Final R= 0. 038, R.= 0. 045 for 1799 reflections with I≥3.5σ(I). In this nonplanar neutral molecule both nitrobenzol rings are approximately perpendicular to the dithiole ring with an asymmetric configuration.
文摘Materials with large non-linear optical properties are good candidates for applications in the fields of telecommunications, solar energy conversion, laser treatment and so on. In the present study, a crystal of Ammonium Dihydrogen Orthophosphate doped with Acridine Orange, possessing excellent nonlinear optical properties were grown by the slow solvent evaporation technique at 25°C using a constant temperature bath. Ammonium dihydrogen orthophosphate doped with Acridine Orange were synthesized in a large quantity via solution growth method using aqueous mixtures of Ammonium Dihydrogen Orthophosphate and Acridine Orange. The morphological characteristics were studied by field emission scanning electron microscopy which revealed that the synthesized product possesses needle shaped microstructures. The mechanical properties are studied by Vicker’s micro hardness test.
