Optical absorption spectrum of Cr 3+ in natural ruby
作者: B J ReddyL Rama Moorthy
作者单位: 1Department of Physics, Sri Venkateswara University
刊名: Pramana, 1982, Vol.19 (5), pp.449-454
来源数据库: Springer Nature Journal
DOI: 10.1007/BF02847378
关键词: Optical absorptionelectronic spectranatural rubycrystal field parametersoscillator strengthsemission spectrochemical analysis
原始语种摘要: 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 B lines are identified with spin-forbidden transitions of 2 E , 2 T 1 and 2 T 2 . The two broad bands called U band and Y band are assigned accordingly to the spin-allowed transitions 4 T 2 and 4 T 1 respectively. The observed bands of natural ruby have been attributed to Cr 3+ ion in an octahedral environment with trigonal distortion. The crystal field parameters which gave a good fit to the observed band positions are B =732 cm −1 , C =4.25 B , Dq =1830 cm −1 , V =−1996 cm −1 and λ =34 cm −1 .
全文获取路径: Springer Nature  (合作)
影响因子:0.562 (2012)

  • absorption 吸收
  • spectrum 光谱
  • natural 自然的