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  • Homogeneous and stable glasses from (80GeS220In2S3)100-x(Pr2S3)x system, where x=0-7, were prepared using conventional method (direct synthesis from elements in evacuated silica ampoules). In the transmission spectra of studied glasses, narrow absorption bands, which were assigned to the intra-f electron transitions from the ground to higher energy levels of Pr3+ ions, are identified. The experimental values of oscillator strengths of individual electron transitions were calculated from the transmission spectra. The Judd-Ofelt parameters ( 2, 4, 6) of Pr3+ ions in studied glasses were determined from the values of oscillator strengths. Absolute minimization as well as relative minimization fitting procedures using five or six transitions were applied for the determination of Judd-Ofelt parameters. Obtained values of Judd-Ofelt parameters are discussed in relation with different concentration of Pr3+ ions in studied glasses and with the type of calculation. The values of probabilities of radiative spo
  • Homogeneous and stable glasses from (80GeS220In2S3)100-x(Pr2S3)x system, where x=0-7, were prepared using conventional method (direct synthesis from elements in evacuated silica ampoules). In the transmission spectra of studied glasses, narrow absorption bands, which were assigned to the intra-f electron transitions from the ground to higher energy levels of Pr3+ ions, are identified. The experimental values of oscillator strengths of individual electron transitions were calculated from the transmission spectra. The Judd-Ofelt parameters ( 2, 4, 6) of Pr3+ ions in studied glasses were determined from the values of oscillator strengths. Absolute minimization as well as relative minimization fitting procedures using five or six transitions were applied for the determination of Judd-Ofelt parameters. Obtained values of Judd-Ofelt parameters are discussed in relation with different concentration of Pr3+ ions in studied glasses and with the type of calculation. The values of probabilities of radiative spo (en)
  • Homogenní a stabilní skla systému (80GeS220In2S3)100-x(Pr2S3)x pro x=0-7, byla připravena konvenční metodou (přímá syntéza z prvků v evakuovaných křemenných ampulích). Transmisní spektra studovaných skel obashují slabé absorpční pásy,které přísluší intra-f elektronovým přechodům ze základní na výše položené energetické hladiny iontů Pr3+. Experimentální hodnoty oscillatorových sil jednotlivých elektronových přechodů byly zpočítány z transmisních spekter. Judd-Ofelt parametry ( 2, 4, 6) of Pr3+ iontů ve studovaných sklech byly určeny z hodnot oscilátorových sil. Byla vypočítána absolutní i relativní odchylka pro případ 5 a 6 přechodů. Zíslkané hodnoty Judd-Ofelt parametrů byly diskutovány pro různé koncentrace Pr3+ iontů. Dále pak byly zpočítány pravděpodobnosti zářivých elektronových přechodů mezi jednotlivými energetickými hladinami Pr3+ iontů. Také byla měřena luminiscenční spektra studovaných skel. (cs)
Title
  • Spectroscopic properties of Pr3+ ions in Ge-In-S chalcogenide glasses
  • Spectroscopic properties of Pr3+ ions in Ge-In-S chalcogenide glasses (en)
  • Spektroskopické vlastnosti chalkogenidových skel s obsahem Pr3+ iontů (cs)
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  • Spectroscopic properties of Pr3+ ions in Ge-In-S chalcogenide glasses
  • Spectroscopic properties of Pr3+ ions in Ge-In-S chalcogenide glasses (en)
  • Spektroskopické vlastnosti chalkogenidových skel s obsahem Pr3+ iontů (cs)
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  • RIV/00216305:26310/05:PU53334!RIV07-MSM-26310___
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  • rare ions, Judd-Ofelt theory, chalcogenide glasses (en)
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  • Frumar, Miloslav
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