Micro + Nano Materials, Devices, and Applications最新文献_第10页

Optomechanical tension and crumpling of 2D semiconductors 二维半导体的光机械张力与皱化

Micro + Nano Materials, Devices, and Applications Pub Date : 2019-12-31 DOI: 10.1117/12.2539440

A. Poshakinskiy, I. Avdeev, A. Poddubny

引用次数: 0

Optical metagrating for one-shot polarization measurements 单次偏振测量的光学偏光

Micro + Nano Materials, Devices, and Applications Pub Date : 2019-12-31 DOI: 10.1117/12.2539973

Shaun Lung, N. Pedersen, Kai Wang, K. Zangeneh Kamali, F. Setzpfandt, A. Sukhorukov

引用次数: 0

Ablation control by applying magnetic and electric fields 利用磁场和电场控制烧蚀

Micro + Nano Materials, Devices, and Applications Pub Date : 2019-12-31 DOI: 10.1117/12.2541090

J. Maksimovic, T. Katkus, S. Ng, S. Juodkazis

引用次数: 1

Silicon nitride based fluidically tuned photonic crystal for bio-sensing application 用于生物传感的氮化硅流体调谐光子晶体

Micro + Nano Materials, Devices, and Applications Pub Date : 2019-12-31 DOI: 10.1117/12.2539798

Manoranjan Kumar, S. M, P. T., N. K.

{"title":"Silicon nitride based fluidically tuned photonic crystal for bio-sensing application","authors":"Manoranjan Kumar, S. M, P. T., N. K.","doi":"10.1117/12.2539798","DOIUrl":"https://doi.org/10.1117/12.2539798","url":null,"abstract":"In this work, silicon nitride (Si3N4) based fluidically tuned photonic crystal for a biosensing application is presented. The optical structure is designed on Si3N4 on insulator. The Si3N4 on insulator substrate is found to be one of the most promising materials for the design of bio- sensor at short wavelength. At short wavelength Si3N4 material is found to be most promising material for optical integrated circuits. The structure of the sensor consists of Silicon nitride input and output waveguides separated by a fluidically tuned photonic crystal. Fluidically tuned photonic crystal acts as a sensing region. The sensitivity is based on refractive index of fluidically tuned photonic crystal. The proposed sensor is designed to operate in the visible wavelength range of 660nm. Fluidically tuned photonic crystal consists of rectangular photonic crystal array. The holes of photonic crystal are approximately 160nm in diameter and height is 200nm. Organic light emitting diode is used as an optical source. OLED is coupled to input waveguide. The PDMS microfluidic channel is moulded on the rectangular photonic crystal structure. The structure is modelled and analysis is carried out by using Lumerical mode solution and Lumerical Finite Difference Time Domain (FDTD) simulation tools. Such devices if fabricated can be employed for early detection of various diseases related to pathological parameters.","PeriodicalId":131350,"journal":{"name":"Micro + Nano Materials, Devices, and Applications","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127409729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Scalable and consistent fabrication of plasmonic colors via nanoimprint lithography 利用纳米压印光刻技术制备等离子体颜色的可扩展性和一致性

Micro + Nano Materials, Devices, and Applications Pub Date : 2019-12-31 DOI: 10.1117/12.2539079

M. Faris, Shahin Shahidan, Jingchao Song, T. James, P. Mulvaney, Ann Roberts

引用次数: 0

Mid infrared metasurfaces for photo-thermal energy conversion 用于光热转换的中红外超表面

Micro + Nano Materials, Devices, and Applications Pub Date : 2019-12-31 DOI: 10.1117/12.2541073

Y. Nishijima, Naoki To, Takuhiro Kumagai

引用次数: 0

Hybrid two-dimensional nanostructured hydrogen gas sensors 混合二维纳米结构氢气传感器

Micro + Nano Materials, Devices, and Applications Pub Date : 2019-12-31 DOI: 10.1117/12.2539857

H. Hashtroudi, R. Savub, R. Kumar, S. Moshkalev, M. Shafiei

{"title":"Hybrid two-dimensional nanostructured hydrogen gas sensors","authors":"H. Hashtroudi, R. Savub, R. Kumar, S. Moshkalev, M. Shafiei","doi":"10.1117/12.2539857","DOIUrl":"https://doi.org/10.1117/12.2539857","url":null,"abstract":"Two-dimensional (2D) nanostructured materials such as reduced graphene oxide (rGO) are highly promising for hydrogen (H2) sensing due to their narrow bandgap, number of active sites, and high surface area. Detection of hydrogen gas, a renewable and clean source of energy, in the atmosphere is of great importance in maintaining safety at all stages of hydrogen production, storage and use. In this work, a novel conductometric sensor has been developed based on hybrid 2D nanostructured rGO doped with Pd nanoparticles (Pd/rGO) to evaluate its sensing performance towards hydrogen with different concentrations (up to 1%). Various sensing parameters including sensitivity, response/recovery time, stability, and low detection limit have been investigated throughout the experiment. We also evaluate performance of the developed sensors at different operating temperatures (room temperature up to 120°C). Material properties of hybrid Pd/rGO film including surface morphologies, crystallinity, molecular vibration, functional groups, and oxidation states are sufficiently analysed by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDX), profilometer, X-ray diffraction (XRD), and Raman spectroscopy. Furthermore, fundamental sensing mechanism governing the interactions between Pd/rGO and the hydrogen molecules are studied. It is anticipated that materials and techniques described in this work offers solutions to develop highly sensitive and portable hydrogen sensors with low power consumption and low fabrication and operation cost.","PeriodicalId":131350,"journal":{"name":"Micro + Nano Materials, Devices, and Applications","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132851539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

An optical fiber microprobe for surface-enhanced Raman scattering sensing with enhanced signal-to-background ratio 一种用于增强信本比表面增强拉曼散射传感的光纤微探针

Micro + Nano Materials, Devices, and Applications Pub Date : 2019-12-31 DOI: 10.1117/12.2541189

Md Abdullah Al Mamun, T. Katkus, S. Juodkazis, P. Stoddart

{"title":"An optical fiber microprobe for surface-enhanced Raman scattering sensing with enhanced signal-to-background ratio","authors":"Md Abdullah Al Mamun, T. Katkus, S. Juodkazis, P. Stoddart","doi":"10.1117/12.2541189","DOIUrl":"https://doi.org/10.1117/12.2541189","url":null,"abstract":"Surface-enhanced Raman scattering (SERS) is a highly sensitive and versatile analytical technique that can be implemented on an optical fiber platform for use in challenging environments. This work has sought to address a major factor limiting the use of optical fibers for SERS analytical applications, namely the silica Raman background generated inside the fiber can make it difficult to detect the target analyte. Two different approaches were investigated to address this problem. Firstly, double clad fiber (DCF) was found to increase the collection of Raman scattered signal from the analyte, giving up to twelve-fold improvement in the signal-to-background ratio (SBR). Secondly, a prototype microfilter was manufactured by femtosecond laser machining and attached directly to the DCF tip. Its performance in rejecting background signal was then evaluated. When taking the lengths of the optical fibers into account, the filtered DCF microprobe delivers 7.0 SBR.cm, while the bare DCF probe provided 3.0 SBR.cm. Therefore, the microfilter assembly more than doubled the performance of the SERS probe and, with further optimization in future, it shows great promise for ultra-compact SERS and Raman optical fiber probes.","PeriodicalId":131350,"journal":{"name":"Micro + Nano Materials, Devices, and Applications","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124989341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Frequency mixing in nonlinear interaction of one-way edge-modes of topological photonic crystals 拓扑光子晶体单向边模非线性相互作用中的频率混频

Micro + Nano Materials, Devices, and Applications Pub Date : 2019-12-31 DOI: 10.1117/12.2539874

Z. Lan, J. You, N. Panoiu

引用次数: 1

Multi-point high temperature optical fiber sensor 多点高温光纤传感器

Micro + Nano Materials, Devices, and Applications Pub Date : 2019-12-30 DOI: 10.1117/12.2541105

E. Schartner, L. Nguyen, D. Otten, Zhengang Yu, D. Lancaster, H. Ebendorff‐Heidepriem, S. Warren-Smith

引用次数: 1