Results 41 to 50 of about 8,090 (214)
Detection of Noble Gas Scintillation Light with Large Area Avalanche Photodiodes (LAAPDs)
, 2004 Large Area Avalanche Photodiodes (LAAPDs) were used for a series of systematic measurements of the scintillation light in Ar, Kr, and Xe gas. Absolute quantum efficiencies are derived.
A. Rubbia +15 more
core +1 more source
Luminescent behavior of the K2SiF6:Mn4+ red phosphor at high fluxes and at the microscopic level [PDF]
, 2016 Phosphor-converted white light-emitting diodes (LEDs) are becoming increasingly popular for general lighting. The non-rare-earth phosphorK(2)SiF(6): Mn4+, showing promising saturated red d-d-line emission, was investigated.
Joos, Jonas +5 more
core +2 more sources
AIP Advances, 2022 Owing to the COVID-19 outbreak, sterilization of deep-ultraviolet light-emitting diodes (DUV LEDs) has attracted increasing attention. Effectively improving the radiative recombination efficiency and mitigating the efficiency degradation, mainly caused ...
Fengyi Zhao +7 more
doaj +1 more source
High Efficiency Detection of Argon Scintillation Light of 128nm Using LAAPDs
, 2005 The possibility of efficient collection and detection of vacuum ultraviolet light as emitted by argon, krypton, and xenon gas is studied. Absolute quantum efficiencies of large area avalanche photodiodes (LAAPDs) are derived at these wavelengths.
Chandrasekharan, R. +4 more
core +2 more sources
Super-resolution, Extremal Functions and the Condition Number of Vandermonde Matrices [PDF]
, 2015 Super-resolution is a fundamental task in imaging, where the goal is to extract fine-grained structure from coarse-grained measurements. Here we are interested in a popular mathematical abstraction of this problem that has been widely studied in the ...
Beurling A. +10 more
core +2 more sources
IEEE Photonics Journal, 2018 In this work, we investigate the effect of sidewall angle, height and space of an air cavity extractor (AC-Extractor) on the polarization-dependent light extraction efficiency (LEE) for AlGaN-based deep-ultraviolet light-emitting diodes (DUV LEDs) using ...
Yonghui Zhang +8 more
doaj +1 more source
IEEE Photonics Journal, 2020 In this work, we have investigated the origin of efficiency droop for AlGaN-based deep ultraviolet light-emitting diodes (DUV LEDs). We find that the efficiency droop is likely to be caused by the electron leakage for DUV LEDs studied in this work.
Chunshuang Chu +7 more
doaj +1 more source
Crystals, 2022 Planar, nanopillar and Al nanosphere structure AlGaN-based deep-ultraviolet light-emitting diodes (DUV-LEDs) were numerically investigated via a three-dimensional finite difference time domain (3D FDTD) method.
Xiaolong Hu +3 more
doaj +1 more source
Hybrid remote quantum dot/powder phosphor designs for display backlights [PDF]
, 2017 Quantum dots are ideally suited for color conversion in light emitting diodes owing to their spectral tunability, high conversion efficiency and narrow emission bands.
Abé, Sofie +4 more
core +1 more source
Mean-field optimal control and optimality conditions in the space of probability measures [PDF]
, 2020 We derive a framework to compute optimal controls for problems with states in the space of probability measures. Since many optimal control problems constrained by a system of ordinary differential equations (ODE) modelling interacting particles converge
Burger, Martin +3 more
core +2 more sources