Optical Materials: X最新文献_第5页

The nephelauxetic function he: A tool to locate the emission of Mn4+ in oxides and fluorides 他的浊度函数定位氧化物和氟化物中 Mn4+ 发射的工具

Optical Materials: X Pub Date : 2024-05-01 DOI: 10.1016/j.omx.2024.100310

Philippe Boutinaud

引用次数: 0

Improving interpretations of imperfections in insulating materials for current technologies 改进对绝缘材料缺陷的解释，促进当前技术的发展

Optical Materials: X Pub Date : 2024-05-01 DOI: 10.1016/j.omx.2024.100327

Peter D. Townsend , Yafang Wang

{"title":"Improving interpretations of imperfections in insulating materials for current technologies","authors":"Peter D. Townsend , Yafang Wang","doi":"10.1016/j.omx.2024.100327","DOIUrl":"10.1016/j.omx.2024.100327","url":null,"abstract":"<div>Academic studies of imperfections in insulating crystals and glasses initially assumed the sites were simple and isolated. In part this was the result of the original simplistic characterisation and modelling. Unfortunately many textbooks, teaching and publications engrained this viewpoint. More detailed techniques invariably showed those ideas to be incorrect, with numerous examples of extremely long range interactions, multi-sites packages, and even phase separations or nanoparticle inclusions. Despite these examples, current defect models still often focus on extremely localised sites. This seems particularly inappropriate, as in many modern applications the materials are heavily doped, and in a powder format. It therefore seems essential to include, or reintroduce, analysis techniques which can reveal both the long range effects, and the variations that exist as a function of powder size and method of production. Where such data exist, they reveal considerable complexity. This overview thus comments on past and future analysis techniques with the sensitivity to enhance detailed models. Site models require, and will benefit from, a wider acceptance of medium and long range interactions. Realistically, many sites exist simultaneously, so models will never be perfect, but improved characterisation can assist not only the science, but also commercial developments. Inevitably there are self citations as we have actively exploited a range of techniques that can reveal evidence of long range defect production and sensitivity to extended lattice perturbations.</div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590147824000391/pdfft?md5=27ba0b291556c07c42746aea9b0feb66&pid=1-s2.0-S2590147824000391-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141043653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Temperature behavior of Ce3+ emission in (Lu,Y)2SiO5 single crystals excited by vacuum ultraviolet synchrotron light 真空紫外同步辐射光激发 (Lu,Y)2SiO5 单晶中 Ce3+ 发射的温度特性

Optical Materials: X Pub Date : 2024-05-01 DOI: 10.1016/j.omx.2024.100322

V. Pankratova , K. Chernenko , A.I. Popov , V. Pankratov

引用次数: 0

Spectroscopic and microscopic evidence of 2D boron nitride nanoflake interaction with doxorubicin 二维氮化硼纳米片与多柔比星相互作用的光谱和显微证据

Optical Materials: X Pub Date : 2024-05-01 DOI: 10.1016/j.omx.2024.100323

Olena Gnatyuk , Galyna Dovbeshko , Andrej Dementjev , Katsiaryna Chernyakova , Oleg Posudievsky , Igor Kupchak , Denys Kolesnyk , Galyna Solyanik , Renata Karpicz

{"title":"Spectroscopic and microscopic evidence of 2D boron nitride nanoflake interaction with doxorubicin","authors":"Olena Gnatyuk , Galyna Dovbeshko , Andrej Dementjev , Katsiaryna Chernyakova , Oleg Posudievsky , Igor Kupchak , Denys Kolesnyk , Galyna Solyanik , Renata Karpicz","doi":"10.1016/j.omx.2024.100323","DOIUrl":"https://doi.org/10.1016/j.omx.2024.100323","url":null,"abstract":"<div>Doxorubicin (DOX) interaction with 2D boron nitride (BN) nanoparticles was studied experimentally and theoretically. The BN nanoparticles, namely nanoflakes, were obtained by direct liquid-phase exfoliation via preliminary stratification in a planetary ball mill from massive hexagonal BN. 2D BN nanoparticles and DOX/BN composites were characterized using visible steady-state, time-resolved fluorescence, FTIR and Raman spectroscopy, Coherent Anti-Stokes Raman Scattering (CARS) microscopy and density functional theory (DFT). The BN nanoflakes from 2 to 3 layers up to hundred nm in lateral direction possessed crystalline properties that formed the DOX/BN composites with fluorescence in the range of 520–750 nm that can be used in DOX detecting. The calculations revealed a notable electron transfer between the BN monolayer and the DOX molecule, which, however, is partly offset by the redistribution of charge within the monolayer. The energy of interaction of the BN with DOX was estimated as 1.96 eV, indicating that the DOX/BN composite formation is an exothermic process. The Fluorescence quenching of DOX/BN occurs with increased BN nanoparticle concentration. The optimal concentration for composite formation was chosen. In CARS imaging of the Lewis lung carcinoma cells after treatment with DOX/BN, brightly luminous points are observed inside the cells, indicating the accumulation of DOX/BN composites that can be used in bioimaging and theranostics.</div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590147824000354/pdfft?md5=5e50bbcd31ce272aa6ecb14a75aae9df&pid=1-s2.0-S2590147824000354-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140843738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of transparent conductive layers on the functionality of liquid crystal devices: Comparison of AZO, FTO and ITO 透明导电层对液晶器件功能的影响：AZO、FTO 和 ITO 的比较

Optical Materials: X Pub Date : 2024-05-01 DOI: 10.1016/j.omx.2024.100330

Vera Marinova , Stefan Petrov , Dimitrina Petrova , Blagovest Napoleonov , Nguyen Hong Minh Chau , Yu Pin Lan , Velichka Strijkova , Ken Yuh Hsu , Dimitre Dimitrov , Shiuan Huei Lin

{"title":"Effect of transparent conductive layers on the functionality of liquid crystal devices: Comparison of AZO, FTO and ITO","authors":"Vera Marinova , Stefan Petrov , Dimitrina Petrova , Blagovest Napoleonov , Nguyen Hong Minh Chau , Yu Pin Lan , Velichka Strijkova , Ken Yuh Hsu , Dimitre Dimitrov , Shiuan Huei Lin","doi":"10.1016/j.omx.2024.100330","DOIUrl":"10.1016/j.omx.2024.100330","url":null,"abstract":"<div>The integration of highly transparent and highly conductive layers plays a crucial role in the advancement of various next-generation optoelectronic technologies. Here, we demonstrate a comparison of optical, electrical and wettability properties of Aluminum-doped Zinc Oxide (AZO) deposited by Atomic Layer Deposition Technique (ALD) with commercially available Fluorine-doped Tin Oxide (FTO) and Indium-doped Tin Oxide (ITO) Transparent Conductive Oxide (TCO) layers. Their impact on the electro-optical modulation behavior when applied in Liquid Crystal (LC) device assemblies are compared and discussed. The AZO layers performance prove that are fully competitive to the commercial FTO and ITO layers and verify the high demand for the next generation indium tin oxide (ITO)-free technology.</div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590147824000421/pdfft?md5=b4cb7020a3cd4aed3aed23e85ea5eee5&pid=1-s2.0-S2590147824000421-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141277463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ZnSe:(Cr,Fe) laser crystal matrices: Challenges related to doping ZnSe:(Cr,Fe) 激光晶体基质：与掺杂有关的挑战

Optical Materials: X Pub Date : 2024-05-01 DOI: 10.1016/j.omx.2024.100321

K.V. Lamonova , S. Orel , A. Prokhorov , N. Kovalenko , M. Schmidbauer , A. Kwasniewski , Yu Kazarinov , J.W. Tomm

{"title":"ZnSe:(Cr,Fe) laser crystal matrices: Challenges related to doping","authors":"K.V. Lamonova , S. Orel , A. Prokhorov , N. Kovalenko , M. Schmidbauer , A. Kwasniewski , Yu Kazarinov , J.W. Tomm","doi":"10.1016/j.omx.2024.100321","DOIUrl":"https://doi.org/10.1016/j.omx.2024.100321","url":null,"abstract":"<div>We investigate co-doped ZnSe: (Cr, Fe) laser crystals with an approach that includes both optical spectroscopy and theoretical modelling. We found that concentrations of chromium and iron up to 1018 cm−3 are optimal for obtaining a homogeneous solid solution in designing laser crystals. Higher dopant concentrations lead to the formation of clusters with spinel structure in the ZnSe matrix. The optimal effectiveness of ZnSe laser media with active Cr2+ and Fe2+ elements is achieved at temperatures of around 100 K. Heating induces charge transfers like Fe2+→Fe3+ and Cr2+→Cr3+, while cooling results in phonon freezing. A theoretical model has been developed to explain the observed temperature evolution of the absorption spectrum. The types and values of distortions of the Cr- and Fe-based coordination complexes are determined. We have found that the Jahn-Teller distortions are crucial for modelling the temperature-dependent changes of the absorption spectra.</div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590147824000330/pdfft?md5=1374461fd29180d612c161e1066f2616&pid=1-s2.0-S2590147824000330-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140900943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optical and scintillation properties of Pr3+-doped (La, Y)2Si2O7 single crystals 掺杂 Pr3+ 的（La, Y）2Si2O7 单晶体的光学和闪烁特性

Optical Materials: X Pub Date : 2024-04-18 DOI: 10.1016/j.omx.2024.100318

Yuka Abe , Takahiko Horiai , Jan Pejchal , Yuui Yokota , Masao Yoshino , Rikito Murakami , Takashi Hanada , Akihiro Yamaji , Hiroki Sato , Yuji Ohashi , Shunsuke Kurosawa , Kei Kamada , Akira Yoshikawa , Martin Nikl

{"title":"Optical and scintillation properties of Pr3+-doped (La, Y)2Si2O7 single crystals","authors":"Yuka Abe , Takahiko Horiai , Jan Pejchal , Yuui Yokota , Masao Yoshino , Rikito Murakami , Takashi Hanada , Akihiro Yamaji , Hiroki Sato , Yuji Ohashi , Shunsuke Kurosawa , Kei Kamada , Akira Yoshikawa , Martin Nikl","doi":"10.1016/j.omx.2024.100318","DOIUrl":"https://doi.org/10.1016/j.omx.2024.100318","url":null,"abstract":"<div>Pr-doped scintillators are attracting attention because of their potential applications in medical devices. In this study, we focused on Pr-doped (La, Y)2Si2O7 scintillators to grow single crystals by the micro-pulling-down method and to evaluate their optical and scintillation properties. From the powder XRD results, the crystal structure and the space group were identified to be monoclinic and P21/n, respectively. The results of optical and scintillation characterization show that the luminescence from the Pr3+ 5d1–4f transition increases with increasing Pr3+ concentration. The maximum light yield was also obtained for the sample with the highest Pr3+ concentration. The Pr-doped (La, Y)2Si2O7 single crystal shows promising properties for application in radiation detection.</div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590147824000305/pdfft?md5=9152e46f85e6d1045a1959fcf24b8c80&pid=1-s2.0-S2590147824000305-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140650649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Barium chalcogenides for nonlinear optics in the mid-IR: Properties and applications 用于中红外非线性光学的铬化钡：特性与应用

Optical Materials: X Pub Date : 2024-04-16 DOI: 10.1016/j.omx.2024.100319

Valentin Petrov , Kiyoshi Kato , Kentaro Miyata

引用次数: 0

The effect of Dy3+ on the optical and radiation attenuation properties of TeO2–ZnO–Na2O–Sm2O3 glasses Dy3+ 对 TeO2-ZnO-Na2O-Sm2O3 玻璃的光学和辐射衰减特性的影响

Optical Materials: X Pub Date : 2024-04-16 DOI: 10.1016/j.omx.2024.100317

Canel Eke

{"title":"The effect of Dy3+ on the optical and radiation attenuation properties of TeO2–ZnO–Na2O–Sm2O3 glasses","authors":"Canel Eke","doi":"10.1016/j.omx.2024.100317","DOIUrl":"https://doi.org/10.1016/j.omx.2024.100317","url":null,"abstract":"<div>This paper aims to investigate theoretically addition of the Dy3+ content on the optical and radiation attenuation properties of TeO2–ZnO – Na2O–Sm2O3 glasses. The STZNDy1 possesses the greatest molar refractivity (Rm) and molar polarizability (αm) whereas the STZNDy5 possesses the lowest Rm and αm. When Dy2O3 content adds into the glass, the reflection loss sharply increases then it declines up to 1.5 mol.% of Dy2O3 content afterwards it is stable however the optical transmission sharply decreases then it increases up to 1.5 mol % of Dy2O3 content afterwards it is stable. The STZNDy5 and STZNDy6 own the greatest metallization criterion while they own the lowest static dielectric constant and optical dielectric constant. Both linear attenuation coefficient and mass attenuation coefficient of the STZNDy glasses increase with the addition of the Dy2O3 content. The STZNDy1 has the highest half value layers (HVLs) and tenth value layers (TVLs) whereas the STZNDy6 has the smallest HVLs and TVLs. The radiation protection efficiency enhances whereas mean free path declines as Dy2O3 content increases in the glasses. Consequently, the STZNDy6 owns the good radiation attenuation ability in the STZNDy glasses, and adding Dy2O3 increases the radiation attenuation characteristics of the STZNDy glasses.</div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590147824000299/pdfft?md5=918438026f1f3864ed50c041054949f0&pid=1-s2.0-S2590147824000299-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140604581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multilayered Ru/TiO2 hyperbolic material for nonlinear optics 用于非线性光学的多层 Ru/TiO2 双曲材料

Optical Materials: X Pub Date : 2024-04-04 DOI: 10.1016/j.omx.2024.100314

F.A. Araiza-Sixtos , F. Solorio-Soto , E.G. Lizarraga-Medina , H. Tiznado , R. Carriles-Jaimes , J.L. Bueno-Escobedo , R. Rangel-Rojo

{"title":"Multilayered Ru/TiO2 hyperbolic material for nonlinear optics","authors":"F.A. Araiza-Sixtos , F. Solorio-Soto , E.G. Lizarraga-Medina , H. Tiznado , R. Carriles-Jaimes , J.L. Bueno-Escobedo , R. Rangel-Rojo","doi":"10.1016/j.omx.2024.100314","DOIUrl":"https://doi.org/10.1016/j.omx.2024.100314","url":null,"abstract":"<div>In this work we present the design, fabrication and study of the optical properties of hyperbolic materials based on multilayered metal–dielectric Ru/TiO<math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math> structures. The samples were fabricated using the Atomic Layer Deposition technique, and their structure was designed to have an Epsilon Near Zero point near 800 nm to match the laser wavelength employed to study their response. The linear optical properties were studied using spectrophotometry and spectral ellipsometry. The nonlinear response was studied as a function of incident irradiance using the z-scan technique with fs pulses as a function of wavelength throughout the visible, allowing the determination of the refractive and absorptive contributions to the nonlinear response. Given that a high pulse repetition rate was employed, cumulative pulse to pulse thermal effects can be present, because of this, a modification of the z-scan technique allowed the resolution of the electronic and thermal contributions to the response.</div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590147824000263/pdfft?md5=ddd1608f8fffce5bdd49aa18ca227f89&pid=1-s2.0-S2590147824000263-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140546286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0