Results 61 to 70 of about 29,139 (290)
Enhanced efficiency in 808 nm GaAs laser power converters via gradient doping
AIP Advances, 2019 Two batches of GaAs laser power converters (LPCs) with or without a localized gradient doping layer were fabricated via metalorganic chemical vapor deposition for converting the power of 808 nm lasers.
Yingjie Zhao +3 more
doaj +1 more source
Journal of Advanced Ceramics, 2023 Ce doped Lu3Al5O12 (Ce:LuAG) transparent ceramics are considered as promising color converters for solid-state lighting because of their excellent luminous efficiency, high thermal quenching temperature, and good thermal stability.
Jie Fu +12 more
doaj +1 more source
Efficient and spectrally bright source of polarization-entangled photons
, 2004 We demonstrate an efficient fiber-coupled source of nondegenerate polarization entangled photons at 795 and 1609 nm using bidirectionally pumped parametric down-conversion in bulk periodically poled lithium niobate. The single-mode source has an inferred
Albota, Marius A. +3 more
core +1 more source
Efficiency of broadband four-wave mixing wavelength conversion using semiconductor traveling-wave amplifiers [PDF]
, 1994 We present a theoretical analysis and experimental measurements of broadband optical wavelength conversion by four-wave mixing in semiconductor traveling-wave amplifiers.
Dawson, Jay W. +5 more
core +1 more source
β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations
Advanced Biology, Volume 9, Issue 3, March 2025.Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio +11 more
wiley +1 more source
Evaluation of Photovoltaic Laser Power Converters for Non-Uniform Laser Irradiance Profiles
, 2022 The non-uniform irradiance of fiber lasers influences the performance of power-by-light systems. We analyze the non-uniformity in both single and triple junction power converters in addition to other parameters that could reduce the efficiency such as manufacturing tolerances or series resistance effect.
Marina Delgado +3 more
openaire +3 more sources
Investigation of work function and chemical composition of thin films of borides and nitrides [PDF]
, 2018 Thin films of various borides, nitrides, and barium fluorides were tentatively deposited by pulsed laser deposition and by magnetron sputtering in order to develop the components of thermionic-photovoltaic devices for the high-temperature thermal to ...
Allen +23 more
core +1 more source
Advanced Engineering Materials, EarlyView.Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek +5 more
wiley +1 more source
55% Efficient High-Power Multijunction Photovoltaic Laser Power Converters for 1070 nm
PhotonicsHigh-efficiency multijunction laser power converters are demonstrated for the first time at high power for optical inputs around 1070 nm. The InP-based photovoltaic power-converting III–V heterostructures are designed with eight lattice-matched InGaAsP ...
Simon Fafard, Denis Masson
doaj +1 more source
Design of AlGaAs Laser Power Converters for the First Transmission Window
, 2021 Proceeding awarded with the best student oral presentation at the 3rd Optical Wireless and Fiber Power Transmission Conference (OWPT2021), 2 pages, 3 ...
Delgado, Marina +2 more
openaire +2 more sources