Optical properties of Ge28Ga6.2S65.3: Er0.5 glass: Stark levels and optical gain coefficient

C. Koughia; M. G. Brik; Gokulakrishnan Soundararajan; S. Kasap

doi:10.1016/j.jnoncrysol.2013.01.045

Optical properties of Ge₂₈Ga_6.2S_65.3: Er_0.5 glass: Stark levels and optical gain coefficient

C. Koughia^*
, M. G. Brik
, Gokulakrishnan Soundararajan
, S. Kasap

^*Corresponding author for this work

University of Saskatchewan
University of Tartu

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The absorption and emission spectra corresponding to optical transitions between the ⁴I_15/2, ⁴I_13/2 and ⁴S_3/2 manifolds in Er³⁺ ions in a Ge ₂₈Ga_6.2S_65.3:Er_0.5 (a stoichiometrically derived composition) chalcogenide glass have been investigated at temperatures varying from 12 to 293 K. The combined analysis of spectra corresponding to ⁴I_15/2 → ⁴S _3/2, ⁴S_3/2 → ⁴I_15/2 and ⁴I_13/2 → ⁴I_15/2 transitions has allowed us to determine, in a self-consistent way, the energy positions of the Stark levels in the ⁴I_15/2, ⁴I _13/2 and ⁴S_3/2 manifolds. The Stark levels are then used to calculate the emission cross-section and examine its spectral shape, and hence calculate the dependence of spectral optical gain coefficient on the relative population of the ⁴I_15/2 and ⁴I_13/2 manifolds.

Original language	English
Pages (from-to)	90-94
Number of pages	5
Journal	Journal of Non-Crystalline Solids
Volume	377
DOIs	https://doi.org/10.1016/j.jnoncrysol.2013.01.045
Publication status	Published - 2013
Externally published	Yes

Keywords

Absorption and emission cross section
Er-doped chalcogenide glass
Optical gain
Optical properties
Photoluminescence

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10.1016/j.jnoncrysol.2013.01.045

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@article{7e97a49aa74b413389ed29baac5fa6d3,

title = "Optical properties of Ge28Ga6.2S65.3: Er0.5 glass: Stark levels and optical gain coefficient",

abstract = "The absorption and emission spectra corresponding to optical transitions between the 4I15/2, 4I13/2 and 4S3/2 manifolds in Er3+ ions in a Ge 28Ga6.2S65.3:Er0.5 (a stoichiometrically derived composition) chalcogenide glass have been investigated at temperatures varying from 12 to 293 K. The combined analysis of spectra corresponding to 4I15/2 → 4S 3/2, 4S3/2 → 4I15/2 and 4I13/2 → 4I15/2 transitions has allowed us to determine, in a self-consistent way, the energy positions of the Stark levels in the 4I15/2, 4I 13/2 and 4S3/2 manifolds. The Stark levels are then used to calculate the emission cross-section and examine its spectral shape, and hence calculate the dependence of spectral optical gain coefficient on the relative population of the 4I15/2 and 4I13/2 manifolds.",

keywords = "Absorption and emission cross section, Er-doped chalcogenide glass, Optical gain, Optical properties, Photoluminescence",

author = "C. Koughia and Brik, \{M. G.\} and Gokulakrishnan Soundararajan and S. Kasap",

year = "2013",

doi = "10.1016/j.jnoncrysol.2013.01.045",

language = "English",

volume = "377",

pages = "90--94",

journal = "Journal of Non-Crystalline Solids",

issn = "0022-3093",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Optical properties of Ge28Ga6.2S65.3

T2 - Er0.5 glass: Stark levels and optical gain coefficient

AU - Koughia, C.

AU - Brik, M. G.

AU - Soundararajan, Gokulakrishnan

AU - Kasap, S.

PY - 2013

Y1 - 2013

N2 - The absorption and emission spectra corresponding to optical transitions between the 4I15/2, 4I13/2 and 4S3/2 manifolds in Er3+ ions in a Ge 28Ga6.2S65.3:Er0.5 (a stoichiometrically derived composition) chalcogenide glass have been investigated at temperatures varying from 12 to 293 K. The combined analysis of spectra corresponding to 4I15/2 → 4S 3/2, 4S3/2 → 4I15/2 and 4I13/2 → 4I15/2 transitions has allowed us to determine, in a self-consistent way, the energy positions of the Stark levels in the 4I15/2, 4I 13/2 and 4S3/2 manifolds. The Stark levels are then used to calculate the emission cross-section and examine its spectral shape, and hence calculate the dependence of spectral optical gain coefficient on the relative population of the 4I15/2 and 4I13/2 manifolds.

AB - The absorption and emission spectra corresponding to optical transitions between the 4I15/2, 4I13/2 and 4S3/2 manifolds in Er3+ ions in a Ge 28Ga6.2S65.3:Er0.5 (a stoichiometrically derived composition) chalcogenide glass have been investigated at temperatures varying from 12 to 293 K. The combined analysis of spectra corresponding to 4I15/2 → 4S 3/2, 4S3/2 → 4I15/2 and 4I13/2 → 4I15/2 transitions has allowed us to determine, in a self-consistent way, the energy positions of the Stark levels in the 4I15/2, 4I 13/2 and 4S3/2 manifolds. The Stark levels are then used to calculate the emission cross-section and examine its spectral shape, and hence calculate the dependence of spectral optical gain coefficient on the relative population of the 4I15/2 and 4I13/2 manifolds.

KW - Absorption and emission cross section

KW - Er-doped chalcogenide glass

KW - Optical gain

KW - Optical properties

KW - Photoluminescence

UR - https://www.scopus.com/pages/publications/84884292518

U2 - 10.1016/j.jnoncrysol.2013.01.045

DO - 10.1016/j.jnoncrysol.2013.01.045

M3 - Article

AN - SCOPUS:84884292518

SN - 0022-3093

VL - 377

SP - 90

EP - 94

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

ER -

Optical properties of Ge₂₈Ga_6.2S_65.3: Er_0.5 glass: Stark levels and optical gain coefficient

Abstract

Keywords

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