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Thermal lens study of thermo-optical properties and concentration quenching of Er3+-doped lead pyrophosphate-based glasses
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10.1063/1.4729295
/content/aip/journal/jap/111/12/10.1063/1.4729295
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/12/10.1063/1.4729295

Figures

Image of FIG. 1.
FIG. 1.

(a) Typical normalized TL signal for the Er4LP sample with excitation at 980 nm. (b) Thermal lens phase shift as a function of the incident power for the ErxLP samples under excitation at 980 nm.

Image of FIG. 2.
FIG. 2.

Thermal diffusivity versus the Er3+ concentration for the ErxLP samples.

Image of FIG. 3.
FIG. 3.

Thermal lens phase shift divided by the absorbed pump power versus the normalized lifetime, Γ, for low pump power at 980 nm.

Image of FIG. 4.
FIG. 4.

Fluorescence quantum efficiency of the 4I13/2 level as a function of the Er3+ concentration. The line is shown as a guide to the eye.

Image of FIG. 5.
FIG. 5.

(a) Typical emission of the samples under excitation at 488 nm. The two maxima were normalized. (b) Simplified energy level diagram for Er3+ ions with excitation at 488 and low-pump power.

Image of FIG. 6.
FIG. 6.

(a) Typical TL transient for the Er2LP sample under excitation at 488 nm and with a pump power of 29 mW. The solid line is the fit using the TL equation from which the values θ = −(0.02887 ± 0.00006) rad and tc = (1.83 ± 0.01) ms were obtained. (b) TL phase shift as a function of excitation power at 488 nm for the ErxLP samples.

Image of FIG. 7.
FIG. 7.

(a) Fractional thermal load for excitation at 488 nm and (b) fluorescence quantum efficiency of the level 4S3/2 + 2H11/2 as a function of Er3+ concentration.

Tables

Generic image for table
Table I.

Optical and thermal parameters of the samples investigated.

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/content/aip/journal/jap/111/12/10.1063/1.4729295
2012-06-18
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Thermal lens study of thermo-optical properties and concentration quenching of Er3+-doped lead pyrophosphate-based glasses
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/12/10.1063/1.4729295
10.1063/1.4729295
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