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Properties and Structures of Bi_2O_3-B_2O_3-TeO_2 Glass

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Journal of Materials Science & Technology 2013年第3期29卷 209-214页

作者： Guoying Zhao Ying Tian Huiyan Fan Junjie Zhang Lili Hu Key Laboratory of Materials for High Power Laser Shanghai Institute of Optics and Fine MechanicsChinese Academy of Sciences Graduate School of Chinese Academy of Sciences schott Glass Technologies(Suzhou) Co. Ltd

Glass formation range of Bi2O3-B2O3-TeO2 system has been investigated （B2O3 ≤ 40 mol%）. Four glasses with compositions xBi2O3-B2O3-（70-x）TeO2 （x = 40, 50, 60 and 70 tool%） have been prepared by using melt quenching technique. The effect of Bi2O3 content on thermal stability, optical properties and structures of these four Bi2O3-B2O3-TeO2 glasses is systematically investigated by inductive coupled plasma emission spectrometer （ICP）, differential scanning calorimetry （DSC）, Raman spectra and X-ray photoelectron spectroscopy （XPS）. It is found that the density, refractive index and optical basicity increase with increasing Bi2O3. The Raman spectra and XPS spectra show that the glass network is mainly constituted by the [BiO6] octahedron, [TeO4] trigonal bipyramidal, [TeO3] trigonal pyramid, [BO3] trigonal pyramid and [B04] tetrahedron structural units. With increasing Bi2O3, the coordination number around B atom changes from 3 to 4 and [TeO4] units are converted to [TeO3] units. Bi5＋ ions may exist in Bi2O3-B2O3-TeO2 （BBT） system and their amount grows with increasing Bi2O3 content.

关键词： Bismuth glass Glass forming region Raman and X-ray photoelectron spectroscopy (XPS) spectra

Real time full-color imaging in a Meta-optical fiber endoscope

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eLight 2023年第1期3卷 147-154页

作者： Johannes E.Froch Luocheng Huang Quentin A.A.Tanguy Shane Colburn Alan Zhan Andrea Ravagli Eric J.Seibel Karl F.Bohringer Arka Majumdar Department of Physics University of WashingtonSeattleWA 98195USA Department of Electrical and Computer Engineering University of WashingtonSeattleWA 98195USA Tunoptix Fluke Hall4000 Mason Road 300WA 98195 SeattleUSA schott north america Inc.SouthbridgeMA 01550USA Department of Mechanical Engineering University of WashingtonSeattleWA 98195USA Department of Bioengineering University of WashingtonSeattleWA 98195USA Institute for Nano-Engineered Systems University of WashingtonSeattleWA 98195USA

Endoscopes are an important component for the development of minimally invasive *** size is one of the most critical aspects,because smaller and less rigid endoscopes enable higher agility,facilitate larger accessibility,and induce less stress on the surrounding *** all existing endoscopes,the size of the optics poses a major limitation in miniaturization of the imaging *** only is making small optics difficult,but their performance also degrades with ***-optics have recently emerged as a promising candidate to drastically miniaturize optics while achieving similar functionalities with significantly reduced ***,we report an inverse-designed meta-optic,which combined with a coherent fiber bundle enables a 33%reduction in the rigid tip length over traditional gradient-index(GRIN)*** use the meta-optic fiber endoscope(MOFIE)to demonstrate real-time video capture in full visible color,the spatial resolution of which is primarily limited by the fiber *** work shows the potential of meta-optics for integration and miniaturization of biomedical devices towards minimally invasive surgery.

关键词： Endoscopy Meta-optics Nano-fabrication Biomedical engineering

Plastic deformation of a Zr-based bulk metallic glass fabricated by selective laser melting

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Journal of Materials Science & Technology 2021年第1期60卷 139-146页

作者： L.Deng K.Kosiba R.Limbach L.Wondraczek U.Kühn S.Pauly IFW Dresden Institute for Complex MaterialsHelmholtzstraße 20D-01069DresdenGermany Otto schott Institute of Materials Research University of JenaFraunhoferstraße 6D-07743JenaGermany University of Applied Sciences Aschaffenburg Würzburger Straße 45D-63743AschaffenburgGermany

Fully amorphous Zr_(52.5)Cu_(17.9)Ni_(14.6)Al_(10)Ti_(5) bulk metallic glass(BMG) samples with a relative density exceeding 98% were fabricated via selective laser melting(SLM).High fracture stresses of around1700 MPa and a reproducible plastic strain of about 0.5% were obtained for cylindrical SLM *** analysis of the observed serrations during compressive loading implies that the shear-band dynamics in the additively manufactured samples distinctly differ from those of the as-cast *** phenomenon appears to originate from the presence of uniformly dispersed spherical pores as well as from the more pronounced heterogeneity of the glass itself as revealed by instrumented *** these heterogeneities,the shear bands are straight and form in the plane of maximum shear *** manufacturing,hence,might not only allow for producing large BMG samples with complex geometries but also for manipulating their deformation behaviour through tailoring porosity and structural heterogeneity.

关键词： Powder bed fusion Selective laser melting Bulk metallic glass Serrated flow Heterogeneity

Properties of Zinc Silicate Glasses and Melts

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材料科学与工程（中英文A版） 2011年第3X期1卷 312-320页

作者： Doris Ehrt Sylvia Flugel Otto-schott-lnstitut Friedrich-Schiller-Universitgit Jena Fraunhoferstr. 6 D-07743 Jena Germany

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含有化合物相的共晶转变理论模型

金属学报 2021年第10期57卷 1320-1332页

作者：许军锋张宝东 Peter K Galenko 西安工业大学材料与化工学院西安710021 Otto schott Institute of Materials Research Friedrich-Schiller-Universität Jena07743Germany

在经典理论Jackson-Hunt模型的基础上,导出有化合物相参与时的共晶生长模型表达式,补充了共晶生长扩散方程求解过程,以及溶质分配系数的确定和模型使用方法,进而类比给出其他共晶生长模型在有化合物相参与时的使用步骤。模型计算发现:... 详细信息

在经典理论Jackson-Hunt模型的基础上,导出有化合物相参与时的共晶生长模型表达式,补充了共晶生长扩散方程求解过程,以及溶质分配系数的确定和模型使用方法,进而类比给出其他共晶生长模型在有化合物相参与时的使用步骤。模型计算发现:同样过冷度下,共晶生长速率随着化合物相浓度(CB)减小而增大,这一参数变化弥补了化合物相因溶质分配系数小而生长阻力大的不足。由此可得:有化合物相参与的共晶转变,相图两端跨度一般会变窄;共晶两相溶质分配系数较小时,相图两端跨度一般比较窄。

关键词：凝固共晶生长过冷度生长速率

Low-energy ion channeling in nanocubes

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Nano Research 2023年第1期16卷 1522-1526页

作者： Shiva Choupanian Wolfhard Möller Martin Seyring Carsten Ronning Institute of Solid State Physics Friedrich Schiller University JenaMax-Wien-Platz 107743 JenaGermany Helmholtz-Zentrum Dresden-Rossendorf Bautzner Landstraße 40001328 DresdenGermany Otto schott Institute of Materials Research Friedrich Schiller University JenaLoebdergraben 3207743 JenaGermany

Focused ion beam(FIB)processing with low-energy ions has become a standard technique for the manipulation of *** underlying ion beam effects that deviate from conventional high-energy ion irradiation of bulk systems are considered today;however,ion channeling with its consequence of significant deeper penetration depth has been only theoretically investigated in this *** present here an experimental approach to determine the channeling of low-energy ions in crystalline nanoparticles by measuring the sputter yield derived from scanning electron microscopy(SEM)images taken after irradiation under various incident ion *** maps of 30 and 20 keV Ga+ions in Ag nanocubes have been identified and fit well with the ***,channeling has a significant impact on the transport of energetic ions in crystals due to the large critical angle at low ion energies,thus being relevant for any ***,the obtained sputter yield clearly differs from amorphous materials;therefore,it is recommended not to rely only on,e.g.,ion distribution depths predicted by standard Monte-Carlo(MC)algorithms for amorphous materials.

关键词： ion nanostructure interaction ion channeling metallic nanoparticles focused ion beam

Ultrahigh numerical aperture meta-fibre for flexible optical trapping

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Light(Science & Applications) 2021年第4期10卷 589-599页

作者： Malte Plidschun Haoran Ren Jisoo Kim Ronny Forster Stefan A.Maier Markus A.Schmidt Leibniz Institute of Photonic Technology 07745 JenaGermany Abbe Center of Photonics and Faculty of Physics FSU Jena07745 JenaGermany Chair in Hybrid Nanosystems Nanoinstitute MunichLMU Munchen80539 MunchenGermany Department of Physics Imperial College LondonLondon SW72AZUK Otto schott Institute of Material Research FSU Jena07745 JenaGermany

Strong focusing on diffraction-limited spots is essential for many photonic applications and is particularly relevant for optical trapping;however,all currently used approaches fail to simultaneously provide flexible transportation of light,straightforward implementation,compatibility with waveguide circuitry,and strong ***,we demonstrate the design and 3D nanoprinting of an ultrahigh numerical aperture meta-fibre for highly flexible optical *** into account the peculiarities of the fibre environment,we implemented an ultrathin meta-lens on the facet of a modified single-mode optical fibre via direct laser writing,leading to a diffraction-limited focal spot with a recordhigh numerical aperture of up to NA≈*** unique capabilities of this flexible,cost-effective,bio-and fibre-circuitrycompatible meta-fibre device were demonstrated by optically trapping microbeads and bacteria for the first time with only one single-mode fibre in combination with diffractive *** study highlights the relevance of the unexplored but exciting field of meta-fibre optics to a multitude of fields,such as bioanalytics,quantum technology and life sciences.

关键词： optical waveguide fibre

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玻璃——直接接触药品的包装材料

现代包装 2011年第4期 28-30页

作者： Michael Roessler 肖特公司schott-Rohrglas GmbH

玻璃具有众多优点，使其适合作为直接接触药品的包装材料。衡量玻璃适用于药物包装，除玻璃的化学稳定性之外，玻璃的耐水性也是一个重要的因素。玻璃的类型是按照其耐水性能来归类的。制药者的责任和义务是选择合适的材料。其中最为重... 详细信息

玻璃具有众多优点，使其适合作为直接接触药品的包装材料。衡量玻璃适用于药物包装，除玻璃的化学稳定性之外，玻璃的耐水性也是一个重要的因素。玻璃的类型是按照其耐水性能来归类的。制药者的责任和义务是选择合适的材料。其中最为重要的是，容器内表面的质量，最小化玻璃表面和药品之间的反应。

关键词：玻璃表面包装材料直接接触药品耐水性能化学稳定性药物包装内表面

Efficient 2.7-μm emission in Er^(3+)-doped bismuth germanate glass pumped by 980-nm laser diode

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Chinese Optics Letters 2012年第9期10卷 64-66页

作者：赵国营田颖范慧艳张军杰胡丽丽 Key Laboratory of Materials for High Power Laser Shanghai Institute of Optics and Fine MechanicsChinese Academy of Sciences Graduate University of Chinese Academy of Sciences schott Glass Technologies(Suzhou)Co.Ltd.

An Er3＋-doped lead-free bismuth germanate glass is synthesized. Its 2.7-μm emission property is analyzed, and the efficient 2.7-μm emission from the glass is observed under 980-nm laser diode excitation. The prepared glass possesses high spontaneous transition probability （64.8 s^-1） and a large calculated emission cross section （6.61× 10^-21 cm^2） corresponding to the ^4Ⅰ11/2 →4Ⅰ13/2 transition. The multiphonon relaxation rate for the excited state 4Ⅰ11/2 is only 236 s^-1. Therefore, the excellent spectroscopic properties and outstanding thermal stability suggest that this glass is a suitable host for developing solid-state lasers operating in the mid-infrared.

关键词： Bismuth compounds Erbium Glass Solid state lasers