In order to facilitate the general works fine welding operations, improve efficiency, and will not be ordinary dimmer welding mask designed to be stepless variable optical mask. Manually inserted variable optical mask based on three design methods eyepiece round, open welding vision, and the production method is simple, after the reform of the mask can be stepless dimmer. Cost, almost no maintenance cost, worth promoting. This restructuring of the mask is purely mechanical, without the use of power, battery, more energy saving and environmental protection.
This chapter intends to describe the optical properties of silver nanoplates, as well as the various synthetic methods, physical and wet-chemical, that have been developed, with a closer look at those based on colloid chemistry. It provides a description of the crystallographic structure and the morphology of these systems. The chapter describes a few existing studies on morphological changes that can be induced on these systems, which are considered for practical application. It gives a thorough description of the optical response of silver nanoplates. The chapter also provides an intuitive picture of the origin of the intrinsic optical properties for noble metal nanoparticles, and also describes the basis of the numerical methods that have been used for the theoretical modelling of such properties, namely the discrete dipole approximation (DDA) and the boundary element method (BEM). The chapter reviews the various reported studies on silver nanoprisms using both DDA and BEM, as well as their comparison with experimental data.
We demonstrate plasmonically nano-engineered coherent random lasing and stimulated emission enhancement in a hybrid gain medium of organic semiconductors doped with core–shell plasmonic nanoparticles.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEvaluation of an Automated Thermospray Interface for Coupling Electrothermal Atomization Atomic Absorption Spectrometry and Liquid ChromatographyC. BendichoCite this: Anal. Chem. 1994, 66, 23, 4375–4381Publication Date (Print):December 1, 1994Publication History Published online1 May 2002Published inissue 1 December 1994https://pubs.acs.org/doi/10.1021/ac00095a040https://doi.org/10.1021/ac00095a040research-articleACS PublicationsRequest reuse permissionsArticle Views40Altmetric-Citations7LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
This Feature Article provides an overview of current research on the synthesis and properties of silver nanoplates. Starting from a brief description of the origin of the optical properties of Ag nanoparticles and the factors affecting them, we introduce the numerical methods used for modelling—discrete dipole approximation (DDA) and boundary element method (BEM)—and present a comparative study between theoretical predictions and experimental results. Then, the principal physical and wet-chemical synthetic protocols that have been used to obtain Ag nanotriangles/nanoplates in high yield are described, with a discussion of the formation mechanisms proposed by the different authors. Subsequently, the structural characterization of the particles is described, followed by a section devoted to the reactivity and stability of silver nanoplates. We conclude with a description of potential applications in the field of biological and chemical sensors and surface enhanced Raman spectroscopy (SERS).
The lower refractive index sensitivity (RIS) of plasmonic nanoparticles (NP) in comparison to their plasmonic thin films counterparts hindered their wide adoption for wavelength-based sensor designs, wasting the NP characteristic field locality. In this context, high aspect-ratio colloidal core-shell Ag@Au nanorods (NRs) are demonstrated to operate effectively at telecommunication wavelengths, showing RIS of 1720 nm/RIU at 1350 nm (O-band) and 2325 nm/RIU at 1550 nm (L-band), representing a five-fold improvement compared to similar Au NRs operating at equivalent wavelengths. Also, these NRs combine the superior optical performance of Ag with the Au chemical stability and biocompatibility. Next, using a side-polished optical fiber, we detected glyphosate, achieving a detection limit improvement from 724 to 85 mg/L by shifting from the O to the C/L optical bands. This work combines the significant scalability and cost-effective advantages of colloidal NPs with enhanced RIS, showing a promising approach suitable for both point-of-care and long-range sensing applications at superior performance than comparable thin film-based sensors in either environmental monitoring and other fields.
