全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:ALEKSANDAR GOLUBOVIC , SLOBODANKA NIKOLIC , STEVAN DJURIC ...
来源:[J].Journal of the Serbian Chemical Society(IF 0.912), 2005, Vol.70 (1), pp.87DOAJ
摘要:Ruby (Cr:Al2O3) single crystals were grown by the Czochralski technique in an argon atmosphere. The critical crystal diameter dc = 1.0 cm and the critical rate of rotation wc = 20 rpm were calculated by equations of the hydrodynamics of the melt. The rate of crystal growthwas exp...
作者:V. V. Valyavko , A. A. Mozgo
来源:[J].Journal of Applied Spectroscopy(IF 0.686), 2002, Vol.69 (3), pp.418-422Springer
摘要:Abstract(#br)We have investigated the absorption spectra of excited laser single crystals of ruby. The long‐lived increase in absorption depending on the degree of excitation is observed in optically excited crystals of ruby in a wide spectral range. Moreover, in the absorp...
作者:Christo Guguschev , Jens Götze , Matthias Göbbels
来源:[J].American Mineralogist(IF 2.204), 2015, Vol.95 (4), pp.449-455De Gruyter
摘要:Abstract Synthetic rubies were grown by the optical floating zone method and characterized by cathodoluminescence (CL) microscopy and spectroscopy in combination with microprobe analysis. The measured intensity of the Cr3+-induced CL of corundum is influenced by d...
作者:Elena S. Sorokina , Wolfgang Hofmeister , Tobias Häger ...
来源:[J].American Mineralogist(IF 2.204), 2016, Vol.101 (12), pp.2716-2722De Gruyter
摘要:Abstract The term “ontogeny,” which is commonly used in biology, was introduced into the Earth sciences in 1961 to include the genesis and evolution of single crystals and crystal aggregates. The term encompasses nucleation, growth, alteration , and destruction . We present...
作者:B J Reddy , L Rama Moorthy
来源:[J].Pramana(IF 0.562), 1982, Vol.19 (5), pp.449-454Springer
摘要:Abstract(#br)Two sharp line-like bands called N and R lines on the red side, a close doublet ( B lines) on the violet side and two broad bands are observed for natural ruby. At liquid air temperature the splitting of R line was found and also three sharp-bands called R, R′ and...
作者:Danielle E. Chandler , Zigurts K. Majumdar , Gregor J. Heiss ...
来源:[J].Journal of Fluorescence(IF 1.789), 2006, Vol.16 (6), pp.793-807Springer
摘要:... The sample is ruby crystal, which has a lifetime of about 3.5 milliseconds, and is easy to use as a class-room demonstration. The experiments and methods of data analysis are used in the lab section of a class on optical spectroscopy, where we go through the theory and applic...
作者:Takaomi Suzuki , Eiichi Iguchi , Hisashi Soga
来源:[J].Journal of Crystal Growth(IF 1.552), 2009, Vol.312 (8), pp.1210-1212Elsevier
摘要:Abstract(#br)Ruby single crystals were synthesized from MoO 3 , PbF 2 , and PbF 2 –B 2 O 3 fluxes. Mo-based flux gave hexagonal bipyramidal crystals. On the other hand, plate-like crystals were given from Pb-based fluxes. The specific surface free energy of the ruby single crystal...
作者:J.R. Alcala , S-C. Liao , J. Zheng
来源:[J].Medical Engineering and Physics(IF 1.779), 1996, Vol.18 (1), pp.51-56Elsevier
摘要:Abstract(#br)The excited state phosphorescence lifetime of ruby crystals is used to monitor temperature in the physiological range from 15° to 45°C with precision and accuracy less than 1°C, in real time. Precision of 0.1°C is attained with 3 min integration times. A 500 ...
作者:N.I. Leonyuk , A.V. Lyutin , V.V. Maltsev ...
来源:[J].Journal of Crystal Growth(IF 1.552), 2005, Vol.280 (3), pp.551-556Elsevier
摘要:Abstract(#br)Single crystals of ruby have been obtained from fluxed melts based on the systems Li 2 O–MoO 3 , Li 2 O–WO 3 , Na 2 O–WO 3 , 2PbO–3V 2 O 5 , PbO–V 2 O 5 –WO 3 , PbF 2 –Bi 2 O 3 and Na 3 AlF 6 by both the TSSG method and spontaneous crystallization ...

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