Thermal conductivity of Nd3+ and Yb3+ doped laser materials measured by using the thermal lens technique

Martins, V. M.; Brasse, Gurvan; Braud, Alain; Camy, Patrice; Messias, Djalmir N.; Catunda, T.; Moncorgé, R.

doi:10.1016/j.optmat.2014.05.027

Cited by 6 publications

(2 citation statements)

References 19 publications

(39 reference statements)

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“…On the contrary, TLS is highly sensitive to rather slight changes in the sample composition and also requires minimal sample preparation [ 42 , 43 ]. Emphasis of TLS application in this area is placed on the accurate calculation of thermophysical properties of nanofluids [ 36 , 43 , 44 , 45 , 46 ], biodiesel [ 47 , 48 ] solid multicomponent systems [ 49 ], nanoparticles [ 50 , 51 , 52 ], quantum dots [ 53 ], glasses [ 54 , 55 , 56 ], and semiconductors [ 57 ].…”

Section: Introductionmentioning

confidence: 99%

Accuracy of Measurements of Thermophysical Parameters by Dual-Beam Thermal-Lens Spectrometry

2023

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Thermal-lens spectrometry is a sensitive technique for determination of physicochemical properties and thermophysical parameters of various materials including heterogeneous systems and nanoparticles. In this paper, we consider the issues of the correctness (trueness) of measurements of the characteristic time of the thermal-lens effect and, thus, of the thermal diffusivity determined by dual-beam mode-mismatching thermal lensing. As sources of systematic errors, major factors—radiation sources, sample-cell and detector parameters, and general measurement parameters—are considered using several configurations of the thermal-lens setups, and their contributions are quantified or estimated. Furthermore, with aqueous ferroin and Sudan I in ethanol as inert colorants, the effects of the intermolecular distance of the absorbing substance on the correctness of finding the thermophysical parameters are considered. The recommendations for checking the operation of the thermal-lens setup to ensure the maximum accuracy are given. The results obtained help reducing the impact of each investigated factor on the value of systematic error and correctly measure the thermophysical parameters using thermal-lens spectrometry.

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Section: Introductionmentioning

confidence: 99%

Accuracy of Measurements of Thermophysical Parameters by Dual-Beam Thermal-Lens Spectrometry

2023

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“…The most important physical parameter for heat removal capability of the material is κ which was calculated using the obtained D values of the samples as depicted in Equation ( 4). In calculations, we used the reported literature value of the heat capacity (c) for the phosphate glass c = 0.73 J.g −1 .K −1 [40,41], and the measured mass density of the samples using the Archimedes method. The proportionality factor of κ and D, ρ, showed increasing values between 1.95 − 2.10 J/cm 3 .K versus the concentration of TiO 2 NPs.…”

Section: Tls Measurementsmentioning

confidence: 99%

Sulfophosphate Glass Doped with Er3+ and TiO2 Nanoparticles: Thermo-Optical Characterization by Photothermal Spectroscopy

et al. 2021

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In this work, time-resolved thermal lens and beam deflection methods were applied to determine the thermo-optical properties of Er3+ doped sulfophosphate glass in which different concentrations of Titanium dioxide (TiO2) nanoparticles (NPs) were embedded. Thermal diffusivity (D), thermal conductivity (κ), and the temperature coefficient of the optical path length (ds/dT) were determined as a function of NPs concentrations. Moreover, the growth of TiO2 NPs inside the amorphous glass matrix was evidenced by Transmission Electron Microscopy (TEM) images as well as through optical effects such as refractive index change of the glass. The outcomes indicated relatively high values for D and κ as well as a low ds/dT as required for most optical components used for laser media. The addition of TiO2 NPs with concentration of dopants up to 0.6 mol% improved the optical properties of the glass samples but did not affect its thermal properties. The results indicate that the enhanced optical and thermal performance of the proposed co-doped glass fits the quality standards for materials used in photonic devices.

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Niobium oxide influence in the phosphate glasses triply doped with Er3+/Yb3+/Eu3+ prepared by the melting process

Faleiro

Dantas

Silva

et al. 2021

Journal of Non-Crystalline Solids

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Thermal conductivity of Nd3+ and Yb3+ doped laser materials measured by using the thermal lens technique

Cited by 6 publications

References 19 publications

Accuracy of Measurements of Thermophysical Parameters by Dual-Beam Thermal-Lens Spectrometry

Accuracy of Measurements of Thermophysical Parameters by Dual-Beam Thermal-Lens Spectrometry

Sulfophosphate Glass Doped with Er3+ and TiO2 Nanoparticles: Thermo-Optical Characterization by Photothermal Spectroscopy

Niobium oxide influence in the phosphate glasses triply doped with Er3+/Yb3+/Eu3+ prepared by the melting process

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