Optical Properties Using Adaptive Selection of NIR/SWIR …
An adaptive selection of the near/shortwave infrared (NIR/SWIR) reflectance correction and the quasi-analytic algorithms (QAAs) is proposed for the Moderate Resolution Imaging Spectroradiometer (MODIS-Aqua) to utilize the strengths of different correction algorithms and QAAs in a single satellite scene with water types ranging from turbid coastal to clear …
Glass‐Crystallized Luminescence Translucent Ceramics …
1 Introduction. Broadband light sources are essential to a variety of optical and photonic systems such as near-infrared (NIR) spectrometers, [] optical coherence …
Synthesis of quaternary high entropy carbonate and UV-Vis-NIR optical …
In this study, four-element high entropy carbonate solid solutions with Mg as the primary element and three equimolar transition metal elements (Co, Ni, Zn, Fe, Mn and Cu) were successfully prepared using the hydrothermal method. The crystal structure, microstructure, color properties, and reflectance of the synthetic materials were …
High NIR Reflectance and Photocatalytic Ceramic Pigments …
The UV–vis–NIR spectra of (Cr x Bi 1−x)VO 4, x = 0.1, 0.2, 0.4 (600 °C/3 h) powders (see spectra on Section 3.2 and Section 3.3 for sample x = 0.4) show optical absorption bands that can be associated with Cr 3+ (3d 3) in the dodecadeltahedral position (D 2d symmetry group), with a multiband at 220–520 nm integrated almost for the ...
Nir optical ceramic and stone recovery in bangladesh
NRT Announces Three Year Warranty for SpydIR174 Optical Sorters PRWeb. WebJan 19, 2015 Nashville, TN (PRWEB) January 19, 2015 As a result of significant improvements in the durability of its latest generation of optical units, National Recovery Technologies (NRT) has announced a new extended warranty to cover its SpydIR -R and SpydIR -T …
What types of gemstones can be found in Mexico?
The country is home to many minerals and precious stones. Some of the gemstones found in Mexico include fire opals, turquoise, obsidian, and garnets. These natural treasures are highly valued and sought after by collectors, jewelers, and enthusiasts. Mexico is a rich source of gemstones. The country is home to many minerals and …
Ultrahigh Sensitive and Tumor-Specific Photoacoustography in NIR …
Herein, an ultrahigh-sensitive and tumor-specific photoacoustography technique in the near-infrared (NIR-II) region based on optical writing and redox-responsive chromogenic graphic fixing is developed by introducing a self-synthesized photosensitive silver bromide modified with poly lactic-co-glycolic acid (AgBr@PLGA) nanocrystals. …
Enhanced broadband NIR emission in glass ceramic fibers …
These results suggest that the Nd ³⁺ /Yb ³⁺ glass–ceramic fibers are promising for broadband NIR optical amplifications and lasers. Discover the world's research 25+ million members
(PDF) Development of NIR optical tomography system for …
The system comprises 16 optical sources and 16 optical receivers operating at near-infrared wavelength. Time response of single channels is optimized allowing for fast frame rate measurements up to 1000 frames/s. Initial tests in a twophase flow loop show promising results. Keywords — Two-phase flow; optical tomograph; NIR. I.
Ceramic phosphor creates broadband infrared source
NIR output NIR ceramic a er 690 720 750 780 810 Wavelength (nm) 0.3 0.7 1.1 1.5 1.9 6.3 6.8 er (W) ... optical conversion efficiency of 29%. Compared with other advanced 3+ translucent ceramic
Principles and Applications of Miniaturized …
1 Introduction. Near-infrared (NIR) spectroscopy has gained remarkable value as a nondestructive analytical technique and it has become the tool of choice in several fields of application. 1, 2 Its primary …
Principles and Applications of Miniaturized Near …
NIR spectroscopy extracts information from the sample through molecular vibrational excitations, similartoIRand Raman techniques. However,the principle difference between NIR spectroscopy andthe last two techniques is that, in the NIR spectralregion (typically defined as 12500–4000 cm@1 or 800–2500 nm), only overtones …
(PDF) Optical Properties Using Adaptive Selection of NIR…
Optical Properties Using Adaptive Selection of NIR/SWIR Reflectance Correction and Quasi- Analytic Algorithms for the MODIS-Aqua in Estuarine-Ocean Continuum: Application to the Northern Gulf of ...
NIR enhancement induced by refractive index differences …
The Au mol.% in the raw materials for SZAN-0.1Au and 0.5Au samples is insufficient to be detected by XRD pattern; however, STEM and EDX patterns indicate …
The co-optimization of efficiency and emission bandwidth in …
The NIR phosphor-converted light-emitting diode (NIR pc-LED) is a new near-infrared light source that has been widely studied. Among various NIR phosphors, Cr 3+ doped gadolinium aluminum gallium garnet (GAGG:Cr 3+) ceramic phosphor has shown great potential due to its ultra-high efficiency and thermal stability.Despite its capabilities, …
Enhanced far infrared emissivity, UV protection and near …
Anderson et al. have investigated the optical effects of the fabric with and without ceramic additives in the wavenumber from 3000–12,000 cm −1 and reported higher absorbance in fabrics with ...
Designing Er3+/Ho3+-Doped Near-Infrared (NIR-II) Fluorescent Ceramic
Organic molecules that emit near-infrared (NIR) fluorescence at wavelengths above 1000 nm, also known as the second NIR (NIR-II) biological window, are expected to be applied to optical in vivo ...
Smart Recovery of Materials and Upgrade of Organic …
Scope of the Project. The scope of the project is to design, develop and integrate a Smart System for Recovery of materials and upgrade of the organic Compost and RDF quality in existing Mechanical Biological Treatment Plants by using NIR technology, state of the art technology systems for automation and measurement and …
High-Stability Near-Infrared Luminescent Glass Ceramic and …
Near-infrared (NIR) light, valuable for its biological penetration and invisibility to the human eye, is a crucial tool in biomedicine, environmental monitoring, …
In Situ UV–Vis–NIR Absorption Spectroscopy and Catalysis
This review highlights in situ UV–vis–NIR range absorption spectroscopy in catalysis. A variety of experimental techniques identifying reaction mechanisms, kinetics, and structural properties are discussed. Stopped flow techniques, use of laser pulses, and use of experimental perturbations are demonstrated for in situ studies of enzymatic, …
Advances in engineering near-infrared luminescent materials
As NIR optical probes have developed, there has been a concurrent search for new materials for light sources that can take advantage of the NIR spectral window. Since their first demonstration in the early 1980s, Ti:Sapphire lasers have been widely adopted as the NIR solid state laser standard, particularly for pulsed laser applications, …
NIR regeneration and visible luminescence modification …
capacity information encryption, optical data storage, optical communication, and NIR imaging. The exploration of bimetallic cluster formation in Bi repre- ... NIR luminescence intensity of an erasing-recovery process of Eu-Bi glass under 880 nm excitation alternate 473 nm laser irradiation (102.88 W cm 2) and heat-treated (350 C).
NRT Optical Sorting
NRT Launches new Optical Sorter with advanced technology, new easy access design. Nashville, Tenn. – April 24, 2023 -- National Recovery Technologies (NRT), has …
Analytical Advantages of Near-infrared (NIR) Spectroscopy
International Conference on NIR Spectroscopy - Innsbruck, August 2023. The International Conference on Near-Infrared Spectroscopy (NIR 2023 Innsbruck) will be held this year in Innsbruck, Austria, between 20 th-24 th August. For further information please visit: https://nir2023.at. References [1] Ozaki, Y. et al. (2018). Near-IR spectroscopy ...
Gemstones: diamond sorting: Reliably & automatically …
Rather than using the sink/float process, they see the advantage of the more efficient and cost-effective variant using sorting technology. STEINERT has the perfect solution for …
Silica-based oxyfluoride glass and glass-ceramic doped with …
Neodymium (Nd³⁺) doped SiO2-KLaF4 oxyfluoride glass-ceramic (GCs) containing 10 mol% and 20 mol% of KLaF4 nanocrystals (NCs) were prepared for the first time by sol-gel and sintered at 550°C.
Industrial minerals: Separation technology for the highest …
Our optical sorters are fitted with colour cameras and lasers or near-infrared (NIR) with hyperspectral imaging (HSI) to identify surfaces exactly. The laser helps to detect the surface structure. Thus it is possible to separate crystalline rock such as quartz or fluorspar efficiently from calcium, talcum or other minerals – even when these ...
Recovery Stone stone effect stoneware
Taking its cue from contemporary topics Ceramica Rondine explored old places,finding inspiration from French recovered stones. Recovery Stone features imperfections, porosity and all the charm of a weathered …
Ceramics | Free Full-Text | Ecofriendly High NIR Reflectance …
A high NIR reflectance ceramic pigments palette based on rare earths except black (La,Li-SrCuSi4O10 blue wesselsite, Pr-CeO2 red-brown cerianite, Mo …
Recent Advances in Rare-Earth-Doped Nanoparticles for NIR …
To circumvent these problems, optical imaging in the near-infrared (NIR) region, which is located in the so-called "biological window," has gained much attention ... Near-infrared (1550 nm) in vivo bioimaging based on rare-earth doped ceramic nanophosphors modified with PEG-b-poly (4-vinylbenzylphosphonate). Nanoscale 3, ...