Publication detail

Spectroscopic properties of Pr3+ ions in Ge-In-S chalcogenide glasses

REPKOVÁ, M. NĚMEC, P. FRUMAR, M.

Original Title

Spectroscopic properties of Pr3+ ions in Ge-In-S chalcogenide glasses

Type

journal article - other

Language

English

Original Abstract

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 spontaneous electron transitions between Pr3+ energy levels and other important quantities characterizing Pr3+ ions were determined using Judd-Ofelt parameters. The photoluminescence spectra of studied glasses were measured. From the results of Judd-Ofelt analysis, the individual bands of emission spectra were assigned to radiative spontaneous electron transitions between discrete energy states of Pr3+ ions.

Keywords

optical properties, Judd-Ofelt theory, rare elements, chalcogenide glasses, thermal properties, Raman and Infrared spectroscopy

Authors

REPKOVÁ, M.; NĚMEC, P.; FRUMAR, M.

RIV year

2005

Released

20. 10. 2005

Location

Rumunsko

ISBN

1454-4164

Periodical

Journal of Optoelectronics and Advanced Materials

Year of study

7

Number

5

State

Romania

Pages from

2247

Pages to

2253

Pages count

7

BibTex

@article{BUT46340,
  author="Martina {Repková} and Petr {Němec} and Miloslav {Frumar}",
  title="Spectroscopic properties of Pr3+ ions in Ge-In-S chalcogenide glasses",
  journal="Journal of Optoelectronics and Advanced Materials",
  year="2005",
  volume="7",
  number="5",
  pages="2247--2253",
  issn="1454-4164"
}