Ion-beam-induced upconversion
WebPhoton upconversion (UC) is a process in which the sequential absorption of two or more photons leads to the emission of light at shorter wavelength than the excitation wavelength. It is an anti-Stokes type emission. An example is the conversion of infrared light to visible light.Upconversion can take place in both organic and inorganic materials, through a … WebSemiconductor Physics [2 ed.] 9783031182853, 9783031182860 ... ...
Ion-beam-induced upconversion
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WebBending strain induces strong enhancement and modulation of the upconversion emission in doped BTO thin films. Because the unshielded 3d 5 configuration of Mn 2+ is more … WebWe experimentally observed that the ion beam can be used as a new form of excitation source to induce photon upconversion in lanthanide-doped nanocrystals. ... "Subwavelength imaging through ion-beam-induced upconversion," Nature Communications, Nature, vol. 6(1), pages 1-6, December. Handle: …
WebIn order to reveal the enhancement mechanism of UCL induced Fig. 5 shows the schematic illustration of the lattice structure of by Cd2+ doping, the upconversion nature of the UCNPs without and hexagonal NaREF4 and Cd2+ doped NaREF4.
WebEffects of high concentration and clustering on the performance of erbium-doped silica waveguide amplifiers are numerically investigated. The model, based on propagation-rate equations of a laser system containing isolated ions and ion-pairs, is numerically solved by combining Runge-Kutta and full-vectorial finite-element methods; it allows the description … Web17 mei 2024 · The ions in a beam are produced by special instruments called ion sources. They gain speed when entering an electric field, which is produced in a particle accelerator, and are steered and focused by magnetic fields to travel in parallel trajectories inside a vacuum in a metal tube.
Webion-beam-induced upconversion emission of Tm3þ at short wavelengths through energy transfer upconversion. To shed more light on the energy transfer between …
Web6 apr. 2011 · Focused Ion Beam Induced Microstructural Alterations: Texture Development, Grain Growth, and Intermetallic Formation - Volume 17 Issue 3. Skip to main content Accessibility help We use cookies to distinguish you from other users and to provide you with a better experience on our websites. dutch oven venison chiliWebBending strain induces strong enhancement and modulation of the upconversion emission in doped BTO thin films. Because the unshielded 3d 5 configuration of Mn 2+ is more susceptible to crystal field changes, the introduction of an Mn 2+ ion further promotes the strain-induced modulation effect. cryseam shower curtains cageWebUltraviolet upconversion emissions of 246.2 and 252.8 nm from 6DJ levels of Gd3+ ions were observed in GdF3: 10% Yb3+, 0.7% Tm3+ nanocrystals under 980 nm excitation from a laser diode. The 6DJ levels of Gd3+ ions can be efficiently populated by energy transfer processes of Yb-->Tm-->Gd and Yb-->Gd. A six-photon upconversion process was … crysell217 btinternet.comWebTime-resolved Z-scan measurements were employed to characterize energy transfer upconversion on the phosphate glass matrix, named PAN (P 2 O 5 –Al 2 O 3 –Na 2 CO 3), doped with increasing Nd 3+ concentrations. It was observed a linear dependence of the upconversion parameter with the dopant agent, which indicates the presence of a static … cryselda trevinoWeb7 dec. 2016 · A research team led by Prof Andrew BETTIOL from the Centre for Ion Beam Applications (CIBA) in the Department of Physics, NUS has constructed a system for … dutch oven turkey pot pie recipeWebSong, Temperature and fluence dependence of the luminescence properties of Ce:YAG single crystals with ion beam-induced luminescence, Radiat. Meas., № 160 ... Chaika, Upconversion luminescence in Cr3+:YAG single crystal … cryselco lighting ukWeb30 okt. 2014 · To investigate ion beam effects on polyimide, pyromellitic dianhydride--oxydianiline films were exposed to He/sup 2 +/ ions in the energy range of 1.9 to 3.6 MeV, fluences of 0.25 to 3.0 x 10/sup 15/ ions/cm/sup 2/, and sample temperatures of 298 and 130 K. RBS, x-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, … dutch oven turkey recipe