研究目的
Investigating the properties of Nd3+-doped mixed-anion fluoro-sulfo-phosphate glass for 1.06 μm solid-state laser applications.
研究成果
The fluoro-sulfo-phosphate glasses doped with Nd3+ exhibit promising physical and spectroscopic properties for solid-state laser applications, with enhanced stimulated radiative parameters achievable by tuning sulfate contents.
研究不足
The study is limited by the potential loss of F and S during high-temperature preparation and the effect of crucible material on glass composition.
1：Experimental Design and Method Selection:
The glasses were prepared by conventional melt-quenching method. Their physical and spectroscopic properties were analyzed.
2：Sample Selection and Data Sources:
High purity raw materials were used for preparing KPFS and Nd–KPFS glasses.
3：List of Experimental Equipment and Materials:
SEM-EDS, ICP-MS, DSC, Raman spectrometer, prism coupler system, nanoindentation, UV/VIS/NIR spectrophotometer, spectro-fluorometer.
4：Experimental Procedures and Operational Workflow:
The stoichiometric compositions were melted, poured into preheated graphite moulds, annealed, and polished for optical measurements.
5：Data Analysis Methods:
The spectroscopic properties were evaluated by the Judd-Ofelt theory, and other properties were analyzed using various characterization techniques.
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SEM-EDS
Sigma 500
Carl Zeiss Inc.
Analyzing the elements including P, F, S, O, Al and K in the glass samples.
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ICP-MS
ICP-MS 7000
Agilent Technologies Inc.
Testing the amount of P, Al, K in the glass samples.
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Nanoindentation
TTX-NHT3
Aton Paar
Determining the hardness and elastic modulus of the glass samples based on Oliver-Pharr method.
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UV/VIS/NIR spectrophotometer
Lambda 900
Perkin-Elmer
Recording the absorption spectra of Nd–KPFS.
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Function generator
TFG3051C
Tektronix Inc.
Measuring the decay curves connected to the iHR 320 spectrometer.
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Digital oscilloscope
TDS3012C
Tektronix Inc.
Measuring the decay curves connected to the iHR 320 spectrometer.
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DSC
STA449C3 Jupiter
Netzsch
Carrying out differential scanning calorimetry at a heating rate of 10 K/min in air atmosphere.
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Raman spectrometer
in Via
Renishaw
Recording the vibrational spectrum of the glass samples.
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Prism coupler system
2010/M
Metricon
Measuring liner refractive index.
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Spectro-fluorometer
iHR 320
Jobin Yvon Corp., Horiba Scientific
Obtaining fluorescence spectra equipped with an InGaAs detector and an 808 nm LD as pumping resource.
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