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Compositional investigation of YB(3+)-doped glasses for laser-induced fluorescent cooling applications.

机译：YB（3+）掺杂玻璃的激光诱导荧光冷却应用的成分研究。

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In this work, a compositional analysis of Yb3+-doped glasses and transparent glass-ceramics was undertaken to determine potential hosts for use in the development of a first-generation optical cryocooler for space-borne remote sensing applications. By pumping to the lower levels of the Yb 3+ 2F5/2 manifold, followed by a thermally-driven population redistribution to higher levels within both manifolds of Yb 3+, net cooling can be achieved by anti-Stokes fluorescence back to the ground state. This thesis focused on glasses in the ZBLAN, BaF2-InF 3-GaF3 (BIG), phosphate and silicate families as well as transparent glass-ceramics which showed great promise for fluorescent cooling.;Resonant laser ablation (RLA) experiments showed the effects of electrochemical processing on fluoride glasses in reducing transition metal content which is detrimental to successful fluorescent cooling. Reduction in copper, iron, and chromium content of 18, 4.2, and 5.5 were determined for the ZBLANPb sample via RLA. However, reductions in transition metal content were only 1.9 for copper and a negligible amount for iron and chromium in the BIG glasses due to the interference of reduced indium in the electrochemical processing. The BIG and phosphate glass hosts were found to contain similar mean emission photon energies and larger long-wavelength absorption tails than those of ZBLANPb: Yb3+. The oxyfluoride-based glass-ceramics provided the low phonon energies and higher rare earth concentrations characteristic of fluorides while also containing the high temperature properties of an oxide glass which may be essential in practical fluorescent cooling applications. Optical spectra also revealed a strong potential for MCVD silica as an optical cooler, as sufficient overlap between fluorescence and absorption spectra was present. The BIG-derived glasses were determined to have a theoretical minimum operating temperature of 45 K, compared to 55 K for ZBLANPb, and 50--60 K for the Yb3+-doped glass-ceramic.;Infrared camera results showed constant levels of heating at most wavelengths in the transparent glass-ceramic samples, indicating that the temperature increase was independent of the 1.0 mum Yb3+ fluorescence and transition metal content. The presence of heating in Yb3+-doped silica was due to residual OH content in the glass, which had an appreciable absorption band at ∼940 nm.

机译：在这项工作中，对掺Yb3 +的玻璃和透明玻璃陶瓷进行了成分分析，以确定潜在的主体，这些主体可用于开发用于太空遥感应用的第一代光学低温冷却器。通过泵送至较低水平的Yb 3+ 2F5 / 2歧管，然后将热驱动的种群重新分配到较高的Yb 3+歧管中，可以通过将反斯托克斯荧光返回基态来实现净冷却。本文主要研究ZBLAN，BaF2-InF 3-GaF3（BIG），磷酸盐和硅酸盐系列中的玻璃以及对荧光冷却具有广阔前景的透明玻璃-陶瓷。共振激光烧蚀（RLA）实验证明了这种方法的效果。在氟化物玻璃上进行电化学处理以减少过渡金属的含量，这不利于成功的荧光冷却。通过RLA确定ZBLANPb样品的铜，铁和铬含量减少了18、4.2和5.5。但是，由于电化学过程中铟的减少，BIG玻璃中过渡金属含量的减少仅为1.9，而铁和铬的减少量则可以忽略不计。与ZBLANPb：Yb3 +相比，发现BIG和磷酸盐玻璃主体包含相似的平均发射光子能量和更大的长波长吸收尾巴。基于氟氧化物的玻璃陶瓷提供了氟的低声子能和较高的稀土浓度特征，同时还包含了氧化物玻璃的高温特性，这在实际的荧光冷却应用中可能是必不可少的。光谱还显示出MCVD二氧化硅作为光学冷却器的强大潜力，因为荧光和吸收光谱之间存在足够的重叠。确定BIG衍生的玻璃的理论最低工作温度为45 K，而ZBLANPb为55 K，掺Yb3 +的玻璃陶瓷为50--60 K.透明玻璃陶瓷样品中的大多数波长，表明温度升高与1.0微米Yb3 +荧光和过渡金属含量无关。掺Yb3 +的二氧化硅中存在加热是由于玻璃中残留的OH含量，在940 nm处有明显的吸收带。

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作者
Murtagh, Michael Thomas.;
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作者单位

Rutgers The State University of New Jersey - New Brunswick.;

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授予单位 Rutgers The State University of New Jersey - New Brunswick.;
学科 Engineering General.;Engineering Materials Science.
学位 Ph.D.
年度 1999
页码 147 p.
总页数 147
原文格式 PDF
正文语种 eng
中图分类工程基础科学;工程材料学;
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1. Compositional investigation of Yb~(3+)-doped heavy metal fluoride glasses for laser-induced fluorescent cooling applications [J] . M. T. Murtagh, G. H. Sigel Jr., J. C. Fajardo, Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites . 1999,第0期

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2. Laser-induced internal cooling of Yb~(3+) -doped fluoride-based glasses [J] . J. Fernandez, A. Mendioroz, A.J. Garcia Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2001,第0期

机译：激光诱导的Yb〜（3+）掺杂氟化物基玻璃的内部冷却
3. Ion-exchanged optical waveguides fabricated in novel Er~(3+) and Er~(3+)/Yb~(3+)-doped silicate glasses: Relations between glass composition, basicity and waveguide properties [J] . B. Svecova, J. Spirkova, S. Janakova, Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing . 2008,第2期

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4. Spectroscopic Investigations of Yb~(3+)/Ho~(3+) and Yb~(3+)/Tm~(3+)/Ho~(3+) Co-Doped Germanate Glasses and Optical Fibers [C] . M. Kochanowicz, J. Zmojda, P. Miluski, International Conference on Transparent Optical Networks . 2016

机译：Yb〜（3 +）/ hO〜（3+）和Yb〜（3 +）/ Tm〜（3 +）/ ho〜（3+）共掺杂锗玻璃和光纤的光谱研究
5. Laser-induced fluorescent cooling of low loss ytterbium-doped heavy metal fluoride glasses. [D] . Fajardo, James Conrad. 1996

机译：激光诱导的低损耗掺-重金属氟化物玻璃的荧光冷却。
6. Implementation of Laser-Induced Anti-Stokes FluorescencePower Cooling of Ytterbium-Doped Silica Glass [O] . Mostafa Peysokhan, Saeid Rostami, Esmaeil Mobini, 2021

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7. White light emission under 980 nm and Judd-Ofelt analysis of tellurite-zinc glasses doped with Er>sup<3+>/sup<-Yb>sup<3+>/sup<-Tm>sup<3+>/sup< [O] . Gaston Lozano Calderón -1

机译：980 nm下的白光发射和掺杂有Er> sup <3 +> / sup <-yb> sup <3 +> sup <-tm> sup <3 +> / sup <3 +> / sup <3 +> / sup <3 +> / sup <3 +> / sup <3 +> / sup <3 +> / sup <3 +> / sup <3 +> / sup <3 +> / sup <3 +> / sup <

Compositional investigation of YB(3+)-doped glasses for laser-induced fluorescent cooling applications.

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