Journal of Nanophotonics最新文献_第9页

Asymmetric excitations of toroidal dipole resonance and magnetic dipole quasi-bound state in the continuum in hybrid graphene-dielectric metasurface 混合石墨烯介电超表面中连续介质中环形偶极共振和磁偶极准束缚态的非对称激发

IF 1.5 4区物理与天体物理

Journal of Nanophotonics Pub Date : 2022-10-01 DOI: 10.1117/1.JNP.16.046003

Zhiqiang Hao, Yun'e Gao, Cuiying Song

引用次数: 0

Challenges in surface-enhanced Raman scattering detection of pesticide carbendazim and ways to overcome 多菌灵表面增强拉曼散射检测面临的挑战及克服方法

IF 1.5 4区物理与天体物理

Journal of Nanophotonics Pub Date : 2022-10-01 DOI: 10.1117/1.JNP.16.046002

O. Kulakovich, A. Matsukovich, L. Trotsiuk

引用次数: 2

Synthesis and characteristics of BaYF5:Yb3+, Er3+@BaYF5 nanoparticles as a new near-infrared fluorescence bioimaging probe 新型近红外荧光生物成像探针BaYF5:Yb3+，Er3+@BaYF5纳米粒子的合成与表征

IF 1.5 4区物理与天体物理

Journal of Nanophotonics Pub Date : 2022-10-01 DOI: 10.1117/1.JNP.16.046009

Liqing Yang, X. Yang, F. Gao, Q. Fan

{"title":"Synthesis and characteristics of BaYF5:Yb3+, Er3+@BaYF5 nanoparticles as a new near-infrared fluorescence bioimaging probe","authors":"Liqing Yang, X. Yang, F. Gao, Q. Fan","doi":"10.1117/1.JNP.16.046009","DOIUrl":"https://doi.org/10.1117/1.JNP.16.046009","url":null,"abstract":"Abstract. Fluorescent bioimaging technology has been widely used in clinic because of its high sensitivity, quick feedback, and no radiation. Among them, NIR-II imaging has lower absorption, tissue scattering, self-fluorescence, and higher signal-to-noise ratio. As a precursor of nanoprobe, BaYF5 is an excellent material due to its low phonon energy, which makes it easy to achieve rare earth ion energy level transition and obtain strong upconversion luminescence. A near-infrared II (NIR-II) rare earth fluoride nanoparticle (NP) BaYF5 : Yb3 + , Er3 + @ BaYF5 has been constructed. The luminescence principle of the material was deeply analyzed, and the influence of different doping ion ratio on fluorescence intensity was explored. Finally, the optimal doping ratio for this matrix material was obtained. In addition, according to the surface properties of the materials, the water solubility and biocompatibility of the NPs were significantly improved by the modification. Our work also systematically tested and analyzed the cytotoxicity, hematotoxicity, and tissue toxicity of the NPs and finally realized the high-resolution fluorescence imaging in living mice. This NP can be used as an effective and safe NIR-II contrastive agent, which provides the possibility for the detection and monitoring of physiological activity under deep tissue in vivo.","PeriodicalId":16449,"journal":{"name":"Journal of Nanophotonics","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42506335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing light emission near low-refractive-index contrast nanostructures via mirror-symmetry breaking 通过镜面对称破缺增强低折射率对比纳米结构附近的光发射

IF 1.5 4区物理与天体物理

Journal of Nanophotonics Pub Date : 2022-10-01 DOI: 10.1117/1.JNP.16.046001

Hardik Vyas, Ajay Kumar, R. Hegde

{"title":"Enhancing light emission near low-refractive-index contrast nanostructures via mirror-symmetry breaking","authors":"Hardik Vyas, Ajay Kumar, R. Hegde","doi":"10.1117/1.JNP.16.046001","DOIUrl":"https://doi.org/10.1117/1.JNP.16.046001","url":null,"abstract":"Abstract. A platform of recent interest and large application potential is one in which the light emitters are directly integrated with an optical metasurface. Plasmonic metals and high-refractive-index, dielectric Mie metasurfaces have been explored in this connection but have their challenges. We propose low-refractive-index, contrast nanostructured thin films for studying metasurface-emitter systems, specifically focusing on two configurations of practical importance: LED white light generation using color converting polymers and fluorescence-based sensing in aqueous media. To achieve light emission enhancement in a low-index contrast, low optical absorption setting, we exploit the excitation of quasi-bound states in the continuum modes in a mirror-symmetry broken grating. Our numerical study predicts widely tuneable sharp-linewidth emission enhancements, near-zero quenching, and large and controllable active volume in the grating vicinity, which are significant improvements in comparison with both plasmonic and high-index contrast, all-dielectric platforms. When compared with simple gratings, mirror-symmetry broken gratings give four times larger radiative enhancement. Our results are of interest in furthering experimental activity and realizing applications such as light converter for efficient white LEDs and smart detection electronics-integrated substrates for sensing.","PeriodicalId":16449,"journal":{"name":"Journal of Nanophotonics","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43440479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mimicking the structure of Morpho butterfly wing surface: a highly reflective nanostructure assembled by nanospheres 模拟大闪蝶翅膀表面结构:由纳米球组装的高反射纳米结构

IF 1.5 4区物理与天体物理

Journal of Nanophotonics Pub Date : 2022-10-01 DOI: 10.1117/1.JNP.16.046005

Yaohui Wang, Linfeng Jiang, XiaoHong Li

{"title":"Mimicking the structure of Morpho butterfly wing surface: a highly reflective nanostructure assembled by nanospheres","authors":"Yaohui Wang, Linfeng Jiang, XiaoHong Li","doi":"10.1117/1.JNP.16.046005","DOIUrl":"https://doi.org/10.1117/1.JNP.16.046005","url":null,"abstract":"Abstract. Inspired by the surface structure of Morpho butterfly wings, we theoretically propose a biomimetic nanosphere structure with high optical reflectivity. By adjusting the geometric parameters and material parameters of the nanostructure, we obtain reflectivity >99 % in a certain band; the high-reflection bandwidth depends on the period width, filling factor, and number of nanospheres. Its high-reflectivity bandwidth is less dependent on the incidental light angle compared with general single-layer or multilayer coatings for reflection enhancement. Unlike the biomimetic structures that are completely the same as the Morpho butterfly surface, this simplified structure can be assembled in ways other than photolithography and electron-beam lithography. We also analyzed several deviations of the structure, and the results show that our design allowed these deviations, which is helpful to achieving the effect of the structure in the preparation process. At the same time, the equivalent medium theory was used to analyze the nanostructure. The nanosphere structure has excellent potential applications in optical devices that require high reflectivity, such as laser resonant cavity and optical filters.","PeriodicalId":16449,"journal":{"name":"Journal of Nanophotonics","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48954180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of interface mode localization in disordered photonic crystal structure 无序光子晶体结构中界面模式局域化分析

IF 1.5 4区物理与天体物理

Journal of Nanophotonics Pub Date : 2022-10-01 DOI: 10.1117/1.JNP.16.046007

Amit kumar Goyal, M. Husain, Y. Massoud

引用次数: 6

Analysis of thermal performance and charge balance in all-inorganic quantum dot light-emitting devices 全无机量子点发光器件的热性能及电荷平衡分析

IF 1.5 4区物理与天体物理

Journal of Nanophotonics Pub Date : 2022-10-01 DOI: 10.1117/1.JNP.16.046008

S. Rani, J. Kumar

{"title":"Analysis of thermal performance and charge balance in all-inorganic quantum dot light-emitting devices","authors":"S. Rani, J. Kumar","doi":"10.1117/1.JNP.16.046008","DOIUrl":"https://doi.org/10.1117/1.JNP.16.046008","url":null,"abstract":"Abstract. The quantum dot light-emitting devices (QLEDs) have emerged as a promising candidate for electroluminescent devices due to their excellent optical properties, high efficiency, and tunable bandgaps. The QLEDs with increased and prolonged brightness have potential applications in lighting and display devices. However, the stability of these devices is still a matter of concern, and some factors that affect the luminescence from the device involve electric field and temperature-dependent conduction mechanism. Thermal degradation, quenching within the quantum dots, the design of charge transport layers and the charge balance between them are also some factors that affect the efficacy of these devices. The high working temperature of QLEDs is among the most challenging degradation mechanisms, thus an analysis has been carried out regarding the working temperature within the QLEDs, and the methods to minimize these effects have been studied. Another challenge is achieving charge balance within the device and different device structures have been analyzed to achieve the best results regarding charge balance within the device. A few potential strategies have been suggested to reduce the constraints faced in these electroluminescent devices.","PeriodicalId":16449,"journal":{"name":"Journal of Nanophotonics","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42330426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lattice-plasmon effect on entanglement behavior in a plasmonic system 等离子体系统中晶格-等离子体效应对纠缠行为的影响

IF 1.5 4区物理与天体物理

Journal of Nanophotonics Pub Date : 2022-10-01 DOI: 10.1117/1.JNP.16.046006

A. Salmanogli

引用次数: 0

Bismuth-based broadband metamaterial absorber 铋基宽带超材料吸收体

IF 1.5 4区物理与天体物理

Journal of Nanophotonics Pub Date : 2022-07-01 DOI: 10.1117/1.JNP.16.036004

Fan Wang, H. Fan, Xianghua Zeng

引用次数: 2

Thulium/holmium fiber laser with Ti2AlN MAX phase-coated arc-shaped fiber for mode-locked pulse generation 用于锁模脉冲产生的Ti2AlN MAX相位涂层弧形光纤的铊/钬光纤激光器

IF 1.5 4区物理与天体物理

Journal of Nanophotonics Pub Date : 2022-07-01 DOI: 10.1117/1.JNP.16.036006

H. Ahmad, Neshat Sadafi, N. Yusoff, M. Z. Samion, M. F. Ismail, W. Chong

引用次数: 0