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Effect of the Gamma-Ray Irradiation on the Electric and Optical Properties of SrTiO3 Single Crystals
We investigated the visible emission property of SrTiO 3 (STO) single crystals irradiated with gammy-ray ( γ -ray) at various total doses up to 900 kGy....
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High-performance Core/Shell InGaN/GaN Radial Multi-quantum-well Nanowire Solar Cells Non-catalytically Grown on Si Wafers
We report photovoltaic properties of solar cells made of core/shell InGaN/GaN multi quantum wells (MQWs)-nanowire (NW) arrays, vertically-grown...
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Near-Infrared to Visible Upconversion Emission in Er3+ and Yb3+ Codoped BaHfO3
We report on the upconversion (UC) emission property of Er 3+ and Yb 3+ codoped BaHfO 3 polycrystals. We observed the green (~ 540 nm) and the red (~...
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A model for the InGaAs/InP single photon avalanche diodes with multiple-quantum wells in the charge multiplication region
In this work, we study the InP-InGaAs single photon avalanche diodes with multiple InGaAs quantum wells in the multiplication region for quantum...
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Magneto-optical Transitions of GaAs/AlGaAs Multiple Quantum Wells
Photoluminescence (PL) transitions of an undoped GaAs/Al0.33Ga0.67As multiple quantum well structure composed of four different well widths (3, 5, 7...
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Synthesis and Characterization of Bandgap-modulated Organic Lead Halide Single Crystals
Single crystal of organic lead halide (CH 3 NH 3 PbX 3 ; CH 3 NH 3 + = methylammonium (MA), X = Cl − , Br − , I − ) is the best candidate for material intrinsic...
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Structural, Electrical, and Optical Properties of Bismuth-doped Zinc-oxide Thin Films Grown by Radio-frequency Magnetron Sputtering
The effect of deposition temperature on the structural, optical, and electrical properties of bismuth-doped zinc-oxide (BZO) thin films was studied....
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Theoretical Study of Auger Recombination of Excitons in Monolayer Transition-metal Dichalcogenides
Excitons are the most prominent features of the optical properties of monolayer transition-metal dichalcogenides(TMDC). In view of optoelectronics it...
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On the Accuracy of the Conjugation of High-Orbit Satellites with Small-Scale Regions in the Ionosphere
The degree of uncertainty that arises when map** high-orbit satellites of the Cluster type into the ionosphere using three geomagnetic field models...
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Terahertz electrodynamics and superconducting energy gap of NbN
We have measured the transmission spectra of the conventional Bardeen-Cooper-Schrieffer (BCS) superconductor niobium nitride (NbN) thin films ( T ...
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Influence of Thermal Treatment of a Calcium Cobalt Oxide Thin Film by Rapid Thermal Annealing
Ca 3 Co 4 O 9 thin films were deposited by using a sol-gel method. The films were treated by rapid thermal annealing, which is a fast and simple process....
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Circularly polarized Raman study on diamond structure crystals
Circularly polarized Raman and/or photoluminescence (PL) analyses have recently been very important in studying physical properties of many layered...
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Temperature dependence of the excitonic spectra of monolayer transition metal dichalcogenides
We theoretically study the temperature dependence of the excitonic spectra of monolayer transition metal dichalcogenides using the O′Donnell...
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Peculiar Optical Characteristics of Different Silicate Source and Synthesis Technique in Europium Doped Li2SrSiO4
In this work, a silicate based phosphor doped with divalent and trivalent europium (Eu (2+/3+) ) ions have been synthesized by two different synthesis...
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Numerical Analysis of Nanogap Effects in Metallic Nano-disk and Nano-sphere Dimers: High Near-field Enhancement with Large Gap Sizes
Various gap sizes are investigated numerically to extract the local electric field enhancement from a gold sphere and disk dimer systems. Our...
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Wideband high-efficient linear polarization rotators
We demonstrate a wideband polarization rotator with characteristics of high efficiency and large-range incidence angle by using a very simple...
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Photocatalytic Activity of Al-TiO2 Nanomaterials for the Degradation of Methylene Blue Dye
Al-TiO 2 nanofibers and nanotubes having an Al/Ti molar ratio of 0.38 were prepared using solgel-derived electrospinning to investigate the effect of...
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Structural and Temperature-Dependent Electrical/Optical Behaviors of Hot-Wall Deposited BaGa2Se4 Layers
The characteristic behavior of hot-wall deposited BaGa 2 Se 4 layers was investigated as a function of temperature. The structural quality of the layers...
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Evaluation of the Built-in Voltage of a Au/n-GaAs Schottky Barrier Diode by Using Electroreflectance Spectroscopy
The built-in voltage ( V bi ) of a Au/n-GaAs Schottky barrier diode was examined by using electroreflectance (ER) spectroscopy. The ER spectra were...
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Passive Modelocking
A comprehensive introduction to passive modelocking is presented, mainly based on the Haus master equation approach. There has been tremendous...