1 Introduction. Broadband light sources are essential to a variety of optical and photonic systems such as near-infrared (NIR) spectrometers, [] optical coherence …
This project pertains to the compositional analysis of ceramic materials from Oman. These data were generated by neutron activation analysis (NAA) at the Lawrence Berkeley …
The XRD patterns of the as-prepared pigments exposed to 1400 °C are shown in Fig. 1 and S1.All the diffraction peaks are sharp and well-indexed with the standard pattern of the perovskite phase YAlO 3 oxides (JCPDS #70–1677). Furthermore, no impurity peak was observed when Cr or Mg was introduced into the YAlO 3 …
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Near-infrared (NIR) phosphor-converted light-emitting diodes (pc-LEDs) are newly emergent broadband light sources for miniaturizing optical systems like spectrometers.
Other substances containing only primary amines or no β-OH lack reaction competitiveness due to their weaker nucleophilicity or inability to undergo further cyclization. The fluorescence recovery of the probe was linearly related to the EP concentration of 2-75 μmol/L. The detection limit was 0.4 μmol/L. The recovery rate was 94.78-111.32%.
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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 …
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Glass ceramics (GCs) containing well-designed NCs have recently attracted significant research interest due to their benefits, including transparent optical …
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An Er(3+)-doped SiO2:Ta2O5 optical channel waveguide and nanocomposite were prepared by the sol-gel route at a Si:Ta 50:50 molar ratio. Channels with an excellent surface profile were easily and quickly fabricated by focusing a femtosecond laser onto the surface of multilayered films deposited on Si …
DOI: 10.1016/J.JLUMIN.2019.05.012 Corpus ID: 164396927; Rare-earth ion doped niobium germanate glasses and glass-ceramics for optical device applications @article{Marcondes2019RareearthID, title={Rare-earth ion doped niobium germanate glasses and glass-ceramics for optical device applications}, author={Lia Mara …
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Si). We believe that our approach can be applied to a variety of promising novel optical materials being developed. Keyword: refractive index, optical ceramic, FTIR (Fourier Transform Infrared Spectroscopy) 1. Introduction In the design and fabrication of an optical system, the refractive indexes of the
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
[Show full abstract] emission in the visible and near infrared (NIR) region was observed from the glass-ceramics and attributed to the 4T1(4P) → 4A2(4F) and 4T1(4P) → 4T2(4F) transitions of ...
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NIR light can penetrate tissues such as the brain, heart and spinal cord 78, 79, accelerate healing from ischemic heart injury 78, inhibit degeneration in injured optic nerve and retina 3, 78, and promote recovery in stroke 79-81. These effects by NIR light are clearly associated with the absorption spectrum of cytochrome oxidase 15.
1. Introduction. Rare-earth doped ceramics and glasses have been known as fluorescent materials for lasers [1] and optical amplifiers [2].Also, infrared-to-visible upconversion (UC) [3], [4], [5] to emit visible light with near-infrared (NIR) excitation is a characteristic phenomenon reported mostly for them. As for biological use, by making …
The optical photoluminescent (PL) emission of Yb3+ ions in the near infrared (NIR) spectral region at about 950–1100 nm has many potential applications, from photovoltaics to lasers and visual devices. However, due to their simple energy-level structure, Yb3+ ions cannot directly absorb UV or visible light, putting serious limits on their use as light emitters. In …
IR is divided into different bands: Near-Infrared (NIR, 0.78~3.0 μm), Mid-Infrared (MIR, 3.0~50.0 μm) and Far-Infrared (FIR, 50.0~1000.0 ... For example in recent years, optical fiber delivery systems have become an ... et al. Effects of far infrared rays emitting clothing on recovery after an intense plyometric exercise bout applied to elite ...
Fig. 1 shows the typical excitation and emission spectra of MgGeO 3:Pr (prepared at 1400 °C with 0.1 at% Pr content).As shown in Fig. 1 (a), as to 622 nm emission, MgGeO 3:Pr has two excitation bands, one is a narrow excitation peak at 251 nm, and the other is a wide excitation band from 425 to 500 nm.There are three distinct …
Glass ceramics (GCs) containing well-designed NCs have recently attracted significant research interest due to their benefits, including transparent optical properties in the visible or NIR band, a tunable chemical environment for REIs or TMIs to achieve intriguing PL properties, convenience and flexibility in preparation and large-scale ...
The NIR optical properties of nanowire structures have also been investigated more generally for optoelectronic and detection applications and for use in absorption-based imaging and medical technologies. ... Super broadband near-infrared emission and energy transfer in Nd–Bi–Er Co-doped transparent silicate glass …
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Visibly better detection: optical and spatial resolution of 3 to 8 mm. State of the art camera-based NIR technology. NIR (near infrared technology) refers to a spectrum in a range …
1. Which is the most effective wavelength in red light therapy? Various wavelengths are effective for different purposes. However, 610nm 630nm 660nm 810nm 830nm & 850 nm have been proven to be most effective for a wide array of treatments. Of these, 660nm and 850nm are the most widely used. Choose a certified device that …
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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, …
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