Spectral and fluorescent kinetics features of Nd 3+ ion in Nb 2O 5, Ta 2O 5 and La 2O 3 mixed lithium zirconium silicate glasses

T. Srikumar; M. G. Brik; Ch Srinivasa Rao; Y. Gandhi; D. Krishna Rao; V. Ravi Kumar; N. Veeraiah

doi:10.1016/j.saa.2011.06.043

Spectral and fluorescent kinetics features of Nd ³⁺ ion in Nb ₂O ₅, Ta ₂O ₅ and La ₂O ₃ mixed lithium zirconium silicate glasses

T. Srikumar
, M. G. Brik
, Ch Srinivasa Rao
, Y. Gandhi
, D. Krishna Rao
, V. Ravi Kumar
, N. Veeraiah^*

^*Corresponding author for this work

Acharya Nagarjuna University
University of Tartu

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

22 Citations (Scopus)

Abstract

Li ₂O-ZrO ₂-SiO ₂: Nd ³⁺ glasses mixed with Nb ₂O ₅, Ta ₂O ₅ and La ₂O ₃ were prepared. Optical absorption and photoluminescence spectra of these glasses have been recorded at room temperature. The Judd-Ofelt theory was successfully applied to characterize Nd ³⁺ spectra of all the three glasses. From this theory, various radiative properties like transition probability A, branching ratio β _r, the radiative lifetime τ _r, for ⁴F _3/2 emission level in the spectra of these glasses has been evaluated. The radiative life time for ⁴F _3/2 level of Nd ³⁺ ions has also been measured and quantum efficiencies were estimated. Among the three glasses studied, the La ₂O ₃ mixed glass has exhibited the highest quantum efficiency. The reasons for such higher value have been discussed based on the relationship between the structural modifications taking place around the Nd ³⁺ ions.

Original language	English
Pages (from-to)	498-503
Number of pages	6
Journal	Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume	81
Issue number	1
DOIs	https://doi.org/10.1016/j.saa.2011.06.043
Publication status	Published - 15 Oct 2011
Externally published	Yes

Keywords

Li O-ZrO -(Nb O , Ta O and La O )-SiO : Nd glasses
Quantum efficiency
Spectroscopic properties

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10.1016/j.saa.2011.06.043

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Srikumar, T., Brik, M. G., Srinivasa Rao, C., Gandhi, Y., Krishna Rao, D., Ravi Kumar, V., & Veeraiah, N. (2011). Spectral and fluorescent kinetics features of Nd ³⁺ ion in Nb ₂O ₅, Ta ₂O ₅ and La ₂O ₃ mixed lithium zirconium silicate glasses. Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 81(1), 498-503. https://doi.org/10.1016/j.saa.2011.06.043

@article{016a3e51d0e64614babee610d325f50d,

title = "Spectral and fluorescent kinetics features of Nd 3+ ion in Nb 2O 5, Ta 2O 5 and La 2O 3 mixed lithium zirconium silicate glasses",

abstract = "Li 2O-ZrO 2-SiO 2: Nd 3+ glasses mixed with Nb 2O 5, Ta 2O 5 and La 2O 3 were prepared. Optical absorption and photoluminescence spectra of these glasses have been recorded at room temperature. The Judd-Ofelt theory was successfully applied to characterize Nd 3+ spectra of all the three glasses. From this theory, various radiative properties like transition probability A, branching ratio β r, the radiative lifetime τ r, for 4F 3/2 emission level in the spectra of these glasses has been evaluated. The radiative life time for 4F 3/2 level of Nd 3+ ions has also been measured and quantum efficiencies were estimated. Among the three glasses studied, the La 2O 3 mixed glass has exhibited the highest quantum efficiency. The reasons for such higher value have been discussed based on the relationship between the structural modifications taking place around the Nd 3+ ions.",

keywords = "Li O-ZrO -(Nb O , Ta O and La O )-SiO : Nd glasses, Quantum efficiency, Spectroscopic properties",

author = "T. Srikumar and Brik, \{M. G.\} and \{Srinivasa Rao\}, Ch and Y. Gandhi and \{Krishna Rao\}, D. and \{Ravi Kumar\}, V. and N. Veeraiah",

year = "2011",

month = oct,

day = "15",

doi = "10.1016/j.saa.2011.06.043",

language = "English",

volume = "81",

pages = "498--503",

journal = "Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy",

issn = "1386-1425",

publisher = "Elsevier B.V.",

number = "1",

}

Srikumar, T, Brik, MG, Srinivasa Rao, C, Gandhi, Y, Krishna Rao, D, Ravi Kumar, V & Veeraiah, N 2011, 'Spectral and fluorescent kinetics features of Nd ³⁺ ion in Nb ₂O ₅, Ta ₂O ₅ and La ₂O ₃ mixed lithium zirconium silicate glasses', Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, vol. 81, no. 1, pp. 498-503. https://doi.org/10.1016/j.saa.2011.06.043

TY - JOUR

T1 - Spectral and fluorescent kinetics features of Nd 3+ ion in Nb 2O 5, Ta 2O 5 and La 2O 3 mixed lithium zirconium silicate glasses

AU - Srikumar, T.

AU - Brik, M. G.

AU - Srinivasa Rao, Ch

AU - Gandhi, Y.

AU - Krishna Rao, D.

AU - Ravi Kumar, V.

AU - Veeraiah, N.

PY - 2011/10/15

Y1 - 2011/10/15

N2 - Li 2O-ZrO 2-SiO 2: Nd 3+ glasses mixed with Nb 2O 5, Ta 2O 5 and La 2O 3 were prepared. Optical absorption and photoluminescence spectra of these glasses have been recorded at room temperature. The Judd-Ofelt theory was successfully applied to characterize Nd 3+ spectra of all the three glasses. From this theory, various radiative properties like transition probability A, branching ratio β r, the radiative lifetime τ r, for 4F 3/2 emission level in the spectra of these glasses has been evaluated. The radiative life time for 4F 3/2 level of Nd 3+ ions has also been measured and quantum efficiencies were estimated. Among the three glasses studied, the La 2O 3 mixed glass has exhibited the highest quantum efficiency. The reasons for such higher value have been discussed based on the relationship between the structural modifications taking place around the Nd 3+ ions.

AB - Li 2O-ZrO 2-SiO 2: Nd 3+ glasses mixed with Nb 2O 5, Ta 2O 5 and La 2O 3 were prepared. Optical absorption and photoluminescence spectra of these glasses have been recorded at room temperature. The Judd-Ofelt theory was successfully applied to characterize Nd 3+ spectra of all the three glasses. From this theory, various radiative properties like transition probability A, branching ratio β r, the radiative lifetime τ r, for 4F 3/2 emission level in the spectra of these glasses has been evaluated. The radiative life time for 4F 3/2 level of Nd 3+ ions has also been measured and quantum efficiencies were estimated. Among the three glasses studied, the La 2O 3 mixed glass has exhibited the highest quantum efficiency. The reasons for such higher value have been discussed based on the relationship between the structural modifications taking place around the Nd 3+ ions.

KW - Li O-ZrO -(Nb O , Ta O and La O )-SiO : Nd glasses

KW - Quantum efficiency

KW - Spectroscopic properties

UR - https://www.scopus.com/pages/publications/80052924379

U2 - 10.1016/j.saa.2011.06.043

DO - 10.1016/j.saa.2011.06.043

M3 - Article

C2 - 21752699

AN - SCOPUS:80052924379

SN - 1386-1425

VL - 81

SP - 498

EP - 503

JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

IS - 1

ER -

Spectral and fluorescent kinetics features of Nd ³⁺ ion in Nb ₂O ₅, Ta ₂O ₅ and La ₂O ₃ mixed lithium zirconium silicate glasses

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Keywords

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