Fluorescence investigation of Ho3+ in Yb3+ sensitized mixed-alkali bismuth gallate glasses

H. Lin; Y. Y. Zhang; E. Y.B. Pun

doi:10.1016/j.saa.2008.05.019

Fluorescence investigation of Ho³⁺ in Yb³⁺ sensitized mixed-alkali bismuth gallate glasses

H. Lin^*
, Y. Y. Zhang
, E. Y.B. Pun

^*Corresponding author for this work

City University of Hong Kong
Dalian Polytechnic University

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

29 Scopus citations

Abstract

Efficient 2.0 μm infrared and visible upconversion emissions have been observed in Ho³⁺/Yb³⁺ co-doped mixed-alkali bismuth gallate (LKBBG) glasses having a maximum-phonon energy of 673 cm^-1. The Judd-Ofelt parameters Ω₂, Ω₄ and Ω₆ of Ho³⁺ indicate that there is a high asymmetry and strong covalent environment in LKBBG glasses. The large absorption and emission cross-sections of Yb³⁺ confirm that it is a suitable sensitizer for capturing and transferring pump energy to Ho³⁺. The emission cross-section profile for the ⁵I₇ →⁵I₈ transition is derived using the reciprocity method and the peak value is 5.54 × 10^-21 cm², which is much larger than the value in fluorozircoaluminate glasses. LKBBG glasses exhibit low maximum-phonon energy and large refractive index, and it is possible to achieve an effective 1.66 μm U-band emission of Ho³⁺ under 900nm laser radiation.

Original language	English
Pages (from-to)	1547-1550
Number of pages	4
Journal	Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume	71
Issue number	4
DOIs	https://doi.org/10.1016/j.saa.2008.05.019
State	Published - 15 Dec 2008
Externally published	Yes

Keywords

Ho/Yb
Infrared and upconversion emission
Mixed-alkali bismuth gallate glasses
Radiative parameters

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10.1016/j.saa.2008.05.019

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title = "Fluorescence investigation of Ho3+ in Yb3+ sensitized mixed-alkali bismuth gallate glasses",

abstract = "Efficient 2.0 μm infrared and visible upconversion emissions have been observed in Ho3+/Yb3+ co-doped mixed-alkali bismuth gallate (LKBBG) glasses having a maximum-phonon energy of 673 cm-1. The Judd-Ofelt parameters Ω2, Ω4 and Ω6 of Ho3+ indicate that there is a high asymmetry and strong covalent environment in LKBBG glasses. The large absorption and emission cross-sections of Yb3+ confirm that it is a suitable sensitizer for capturing and transferring pump energy to Ho3+. The emission cross-section profile for the 5I7 → 5I8 transition is derived using the reciprocity method and the peak value is 5.54 × 10-21 cm2, which is much larger than the value in fluorozircoaluminate glasses. LKBBG glasses exhibit low maximum-phonon energy and large refractive index, and it is possible to achieve an effective 1.66 μm U-band emission of Ho3+ under 900nm laser radiation.",

keywords = "Ho/Yb, Infrared and upconversion emission, Mixed-alkali bismuth gallate glasses, Radiative parameters",

author = "H. Lin and Zhang, \{Y. Y.\} and Pun, \{E. Y.B.\}",

year = "2008",

month = dec,

day = "15",

doi = "10.1016/j.saa.2008.05.019",

language = "英语",

volume = "71",

pages = "1547--1550",

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

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TY - JOUR

T1 - Fluorescence investigation of Ho3+ in Yb3+ sensitized mixed-alkali bismuth gallate glasses

AU - Lin, H.

AU - Zhang, Y. Y.

AU - Pun, E. Y.B.

PY - 2008/12/15

Y1 - 2008/12/15

N2 - Efficient 2.0 μm infrared and visible upconversion emissions have been observed in Ho3+/Yb3+ co-doped mixed-alkali bismuth gallate (LKBBG) glasses having a maximum-phonon energy of 673 cm-1. The Judd-Ofelt parameters Ω2, Ω4 and Ω6 of Ho3+ indicate that there is a high asymmetry and strong covalent environment in LKBBG glasses. The large absorption and emission cross-sections of Yb3+ confirm that it is a suitable sensitizer for capturing and transferring pump energy to Ho3+. The emission cross-section profile for the 5I7 → 5I8 transition is derived using the reciprocity method and the peak value is 5.54 × 10-21 cm2, which is much larger than the value in fluorozircoaluminate glasses. LKBBG glasses exhibit low maximum-phonon energy and large refractive index, and it is possible to achieve an effective 1.66 μm U-band emission of Ho3+ under 900nm laser radiation.

AB - Efficient 2.0 μm infrared and visible upconversion emissions have been observed in Ho3+/Yb3+ co-doped mixed-alkali bismuth gallate (LKBBG) glasses having a maximum-phonon energy of 673 cm-1. The Judd-Ofelt parameters Ω2, Ω4 and Ω6 of Ho3+ indicate that there is a high asymmetry and strong covalent environment in LKBBG glasses. The large absorption and emission cross-sections of Yb3+ confirm that it is a suitable sensitizer for capturing and transferring pump energy to Ho3+. The emission cross-section profile for the 5I7 → 5I8 transition is derived using the reciprocity method and the peak value is 5.54 × 10-21 cm2, which is much larger than the value in fluorozircoaluminate glasses. LKBBG glasses exhibit low maximum-phonon energy and large refractive index, and it is possible to achieve an effective 1.66 μm U-band emission of Ho3+ under 900nm laser radiation.

KW - Ho/Yb

KW - Infrared and upconversion emission

KW - Mixed-alkali bismuth gallate glasses

KW - Radiative parameters

UR - https://www.scopus.com/pages/publications/53949119554

U2 - 10.1016/j.saa.2008.05.019

DO - 10.1016/j.saa.2008.05.019

M3 - 文章

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AN - SCOPUS:53949119554

SN - 1386-1425

VL - 71

SP - 1547

EP - 1550

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

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

IS - 4

ER -

Fluorescence investigation of Ho³⁺ in Yb³⁺ sensitized mixed-alkali bismuth gallate glasses

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Keywords

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