Disordered laser gain media: Er3+ doped CaGdAlO4 and Ca3Ga2Ge4O14

Jon-Paul R. Wells; Thomas P.J. Han; Mitsuo Yamaga; Nobuhiro Kodama; Hugh G. Gallagher

doi:10.1016/S0022-2313(99)00552-9

Disordered laser gain media: Er3+ doped CaGdAlO4 and Ca3Ga2Ge4O14

Jon-Paul R. Wells
, Thomas P.J. Han
, Mitsuo Yamaga
, Nobuhiro Kodama
, Hugh G. Gallagher

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

17 Citations (Scopus)

Abstract

We report on the optical spectroscopy of trivalent erbium ions doped into compositionally disordered oxide host materials, CaGdAlO4 and Ca3Ga2Ge3O14. In either material, averaged spectral linewidths of close to 40 cm-1 are measured to be concentration independent up to 5 mol% of the dopant ion. For laser excitation resonant with the 4I15/24F9/2 and 4I13/24F5/2 and 4F3/2 transitions, intense blue and green upconversion fluorescence is observed. Dips in the upconversion excitation spectra are attributable to radiative energy transfer (or self-absorption) which is known to enhance energy storage and upconversion.

Original language	English
Pages (from-to)	1093-1095
Number of pages	3
Journal	Journal of Luminescence
Volume	87–89
DOIs	https://doi.org/10.1016/S0022-2313(99)00552-9
Publication status	Published - May 2000

Keywords

aluminium compounds
calcium compounds
colour centre lasers
crystal field interactions
crystal structure
erbium
fluorescence
gadolinium compounds
gallium compounds
germanium compounds
impurity absorption spectra
impurity states
multiphoton processes
optical pumping
radiative transfer
visible spectra

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10.1016/S0022-2313(99)00552-9

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@article{39e6c48631964633951b30fa1348b166,

title = "Disordered laser gain media: Er3+ doped CaGdAlO4 and Ca3Ga2Ge4O14",

abstract = "We report on the optical spectroscopy of trivalent erbium ions doped into compositionally disordered oxide host materials, CaGdAlO4 and Ca3Ga2Ge3O14. In either material, averaged spectral linewidths of close to 40 cm-1 are measured to be concentration independent up to 5 mol\% of the dopant ion. For laser excitation resonant with the 4I15/24F9/2 and 4I13/24F5/2 and 4F3/2 transitions, intense blue and green upconversion fluorescence is observed. Dips in the upconversion excitation spectra are attributable to radiative energy transfer (or self-absorption) which is known to enhance energy storage and upconversion.",

keywords = "aluminium compounds, calcium compounds, colour centre lasers, crystal field interactions, crystal structure, erbium, fluorescence, gadolinium compounds, gallium compounds, germanium compounds, impurity absorption spectra, impurity states, multiphoton processes, optical pumping, radiative transfer, visible spectra",

author = "Wells, \{Jon-Paul R.\} and Han, \{Thomas P.J.\} and Mitsuo Yamaga and Nobuhiro Kodama and Gallagher, \{Hugh G.\}",

year = "2000",

month = may,

doi = "10.1016/S0022-2313(99)00552-9",

language = "English",

volume = "87–89",

pages = "1093--1095",

journal = "Journal of Luminescence",

issn = "0022-2313",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Disordered laser gain media

T2 - Er3+ doped CaGdAlO4 and Ca3Ga2Ge4O14

AU - Wells, Jon-Paul R.

AU - Han, Thomas P.J.

AU - Yamaga, Mitsuo

AU - Kodama, Nobuhiro

AU - Gallagher, Hugh G.

PY - 2000/5

Y1 - 2000/5

N2 - We report on the optical spectroscopy of trivalent erbium ions doped into compositionally disordered oxide host materials, CaGdAlO4 and Ca3Ga2Ge3O14. In either material, averaged spectral linewidths of close to 40 cm-1 are measured to be concentration independent up to 5 mol% of the dopant ion. For laser excitation resonant with the 4I15/24F9/2 and 4I13/24F5/2 and 4F3/2 transitions, intense blue and green upconversion fluorescence is observed. Dips in the upconversion excitation spectra are attributable to radiative energy transfer (or self-absorption) which is known to enhance energy storage and upconversion.

AB - We report on the optical spectroscopy of trivalent erbium ions doped into compositionally disordered oxide host materials, CaGdAlO4 and Ca3Ga2Ge3O14. In either material, averaged spectral linewidths of close to 40 cm-1 are measured to be concentration independent up to 5 mol% of the dopant ion. For laser excitation resonant with the 4I15/24F9/2 and 4I13/24F5/2 and 4F3/2 transitions, intense blue and green upconversion fluorescence is observed. Dips in the upconversion excitation spectra are attributable to radiative energy transfer (or self-absorption) which is known to enhance energy storage and upconversion.

KW - aluminium compounds

KW - calcium compounds

KW - colour centre lasers

KW - crystal field interactions

KW - crystal structure

KW - erbium

KW - fluorescence

KW - gadolinium compounds

KW - gallium compounds

KW - germanium compounds

KW - impurity absorption spectra

KW - impurity states

KW - multiphoton processes

KW - optical pumping

KW - radiative transfer

KW - visible spectra

U2 - 10.1016/S0022-2313(99)00552-9

DO - 10.1016/S0022-2313(99)00552-9

M3 - Article

SN - 0022-2313

VL - 87–89

SP - 1093

EP - 1095

JO - Journal of Luminescence

JF - Journal of Luminescence

ER -

Disordered laser gain media: Er3+ doped CaGdAlO4 and Ca3Ga2Ge4O14

Abstract

Keywords

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