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 … Web19 okt. 2024 · Since amplifiers and lasers typically operate above room temperature due to pump-induced heating, the temperature dependence of the peak-absorption cross-section of the KYb0.57Gd0.43(WO4)2 is evaluated for the sample being heated from 20 °C to 170 °C, resulting in a measured reduction of peak-absorption cross-section at the transitions …

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Web7 feb. 2024 · The ability to synthesize high-quality hierarchical core/shell nanocrystals from an efficient host lattice is important to realize efficacious photon upconversion for applications ranging from bioimaging to solar cells. Here, we describe a strategy to fabricate multicolor core @ shell α-NaLuF4:Yb3+/Ln3+@CaF2 (Ln = Er, Ho, Tm) upconversion … 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. This approach … shape fitting toys

Understanding Ion Induced Radiation Damage in Target …

Web27 okt. 2015 · Photovoltaic cells are able to convert sunlight into electricity, providing enough of the most abundant and cleanest energy to cover our energy needs. However, the efficiency of current photovoltaics is … Web7 apr. 2024 · In this work, near-infrared light responsive upconversion nanoparticles TiO 2 /(Ca,Y)F 2:Tm,Yb were hydrothermally prepared for tumor control.Moreover, femtosecond laser was adopted to reduce particle size and aggregation of TiO 2 /(Ca,Y)F 2:Tm,Yb, as a strategy to enhance its dispersity. In vitro studies of the biocompatibility and tumor … Web15 aug. 2011 · The dynamic response after pump switch-on of a 980 nm pumped-ring laser based on an active photonic crystal fiber with an Er3+ ion concentration of ≈1020 ions cm−3 was registered. Then a numerical… Expand Dynamic Characterization of Upconversion in Highly Er-Doped Silica Photonic Crystal Fibers shape flexer sunhat

Introductory Chapter: Ion Beam Applications IntechOpen

Energy-transfer-upconversion models, their applicability and …

Webbeam was focused by a ×20 objective lens, ... ion at 977 nm enhances the upconversion emission from Er3+ impurities, 8. 1300 1400 1500 1600 0.005 0.010 0.015 0.020 0.025 0.030 0.035 ... [44]. Also, potential induced degradation (PID) of SC’s is frequently related to Na+ diﬀusion from soda-lime[60], and we believe enhanced glasses Web12 nov. 2015 · We experimentally observed that the ion beam can be used as a new form of excitation source to induce photon upconversion in lanthanide-doped nanocrystals. This … shape fitting puzzleWebUltraviolet 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 … pontoon boat top frame parts

"WebTime-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 … " - Ion-beam-induced upconversion

Ion-beam-induced upconversion

Mechanically Induced Light Emission and Infrared-Laser-Induced ...

Web21 dec. 2024 · Nuclear microscopy technologies using ion beams are based on the measurement of various types of secondary particles (e.g., bremsstrahlung and … Web12 nov. 2015 · 1.72 MB 1 Subwavelength imaging through ion-beam-induced upconversion Data January 2024 Zhaohong Mi · Yuhai Zhang · Vanga Sudheer Kumar …

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Web7 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 … Web22 aug. 2024 · First, the bottom electrode is patterned by using a standard optical lithography process, and then vertical Ar + ion milling is done to prepare the bottom electrode using an IBE system with 300 eV electron beam energy, 80 mA ion beam current, and 100 mA neutralization current under a 5.0×10-4 Pa background vacuum and a …

Web19 jul. 2024 · Photon upconversion represents a promising avenue to reduce the spectral mismatch losses limiting the efficiency of solar cells. Here we studied in detail the impact of inserting Yb3+/Er3+ codoped KY7F22 upconversion nanoparticles (UCNPs) into the different interfaces of a solution-processed mixed-cation lead mixed-halide perovskite … Web16 feb. 2016 · “Ion Beam-Induced Spatio-temporal Structural Evolution of Matter: Towards New Quantum Technologies” will be hosted by University of Torino from 23 to 27 May 2016. This event is a follow-up to the IAEA Consultant Meeting “Radiation Damage in Nanostructures created by Ion Beams” held in December 2015 at the IAEA …

WebThe development of advanced luminescent materials is highly desirable for addressing the rising threat of forgery. However, it is challenging to achieve stable full-color upconversion (UC) tuning in the same matrix upon a single-beam light excitation so as to ensure that authentic items are irreproducible. WebPenn alumnus in physics (BA, MS), current research scientist at the Georgia Tech Research Institute (GTRI). Main interests include neutral-atom and solid-state quantum computing, sensitive ...

Web18 nov. 2003 · Seeking Brightness in Molecular Erbium-Based Light Upconversion. Journal of the American Chemical Society 2024, Article ... Laser-Induced Heating in GdVO4: Yb3+/Er3+ Nanocrystals for Thermometry. ACS ... Impact of Sc3+-Modified Local Site Symmetries on Er3+ Ion Upconversion Luminescence in Y2O3 Nanoparticles. The …

Web2016: A scheme for generating transient photonic crystals for high-power lasers involving matching counterpropagating laser beams in a plasma in the sc-SBS regime is proposed.13 An experimental demonstration of a plasma wave plate based on laser-induced birefringence is reported, in which a large-spot-size, low-intensity (I = 10 13 W/cm 2) … pontoon boat top speedWeb电子束诱导沉积（Electron beam-induced deposition， EBID ）是一种使用电子束分解气相分子，从而在衬底上的特定位置实现沉积生长的技术。电子束诱导沉积实验中的电子束常常由扫描电子显微镜提供。这是因为扫描电子显微镜的电子束具有极高的空间精准度（可达纳米级别）；这也使得电子束诱导沉积具有生长出独立三维结构的潜能。目录 1 实验流 … shape fixingWeb14 jun. 2024 · 1. Introduction. This chapter elucidates the concept of low-energy/high-energy ion implantation and its key applications in materials science. Ion implantation is the interaction of energetic ion beam with solids. In this ion-solid interaction, ions penetrate through the materials and slow down to some extent into the materials due to ... shape fix clothingWebThe 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 … shape fitness 24 hoursWeb12 nov. 2015 · We experimentally observed that the ion beam can be used as a new form of excitation source to induce photon upconversion in lanthanide-doped nanocrystals. shape fixity ratioWeb9 dec. 2024 · However, the impact of the C-ion beam was almost the same as that of the 2D culture, ... X-ray and C-ion beams also induced G2/M arrest in 3D spheroids, wherein the percentage decreased compared to that in 2D. The sub G1 phase is representative of cell death, which is evaluated by the percentage of cells in the sub G1 phase. shapeflex 101 pontoon boat top frames