Thermal expansion of high-silica glass

Mironova, M. L.; Chernysheva, G. L.; Oreshnikova, N. G.; Botvinkin, O. K.; Abramyan, A.G.

doi:10.1007/bf00701860

Cited by 2 publications

(1 citation statement)

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“…where l represents the dimensions W, L, H, or S. The thermal expansion coefficients of Au and SiO 2 remain nearly constant near room temperature, and the values at 298 K (= 25 °C) are adopted as [33,34], respectively. Moreover, the temperature dependence of optical parameters should also be considered.…”

Section: Model and Methodsmentioning

confidence: 99%

Design and full analysis of a metafiber-based photothermal bio-probe with perfect conversion efficiency

Zhu,

Jiang,

Zhao

2024

Phys. Scr.

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The metafiber, which involves fabricating metasurfaces at optical fiber tips, has shown potential as an integrated optical sensing or photothermal conversion platform. In this study, we present a metafiber-based photothermal bio-probe with a high optical absorption efficiency of 99.83%. Physical mechanisms underlying the efficiency are elucidated using coherent perfect absorption and multiple reflection theories. In our simulation, the probe exhibits ultra-fast heating/cooling rates, high temperature localization, steep temperature gradients, and robust response to environmental factors. In particular, only 1.0 mW of incident power is needed to generate the temperature gradient required for cell capture or drug delivery, while the corresponding temperature near the fiber tip is still safe for biological tissue. These advantages make our designed bio-probe as an ideal platform in various of applications, such as living cells capture, drug delivery, and local hyperthermia.

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Section: Model and Methodsmentioning

confidence: 99%

Design and full analysis of a metafiber-based photothermal bio-probe with perfect conversion efficiency

Zhu,

Jiang,

Zhao

2024

Phys. Scr.

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The thermal behaviour of glass fibre investigated by thermomechanical analysis

Yang

2013

J Mater Sci

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A TMA procedure has been developed with the capability of probing the thermal behaviour of glass fibre. A single glass fibre was successfully mounted into TMA fibre configuration and several thermomechanical programmes were carried out over a wide temperature range from 20°C to 900°C. It was found that measured coefficient of linear thermal expansion (CLTE) of boron-free E-glass fibre remained constant below 300°C and the values had an excellent agreement with that found in the literature. At higher temperatures an abrupt length change in glass transition region allowed for the determination of glass transition temperature (Tg). The results from isothermal measurement showed significant fibre length shrinkage, which was a function of both temperature and time. It follows that there exist two mechanisms, thermal expansion and structural relaxation, which together account for overall thermomechanical responses of glass fibre. The former is related to the decrease of Young’s modulus at elevated temperatures and the latter is considered responsible for the observed increase of room temperature Young’s modulus after thermally conditioning glass fibre at various temperatures

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Thermal expansion of high-silica glass

Cited by 2 publications

References 0 publications

Design and full analysis of a metafiber-based photothermal bio-probe with perfect conversion efficiency

Design and full analysis of a metafiber-based photothermal bio-probe with perfect conversion efficiency

The thermal behaviour of glass fibre investigated by thermomechanical analysis

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