Results 51 to 60 of about 232,821 (259)
Homogenization of high power diode laser beams for pumping and direct applications
, 2022 Paper 61040QHigh power diode lasers have become an established source for numerous direct applications like metal hardening and polymer welding due to their high efficiency, small size, low cost and high reliability. These laser sources are also used for
Hoffmann, H.-D. +5 more
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Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN
Advanced Functional Materials, EarlyView.Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk +6 more
wiley +1 more source
Advanced Functional Materials, EarlyView.An integrated material platform combining engineered SiNx thin films and printable ZrO2 nanoparticle‐embedded resin enables broadband achromatic metalenses from the ultraviolet to visible range. The demonstrated meta‐optics achieve near‐diffraction‐limited focusing with minimal chromatic aberration.
Hyunjung Kang +3 more
wiley +1 more source
Three dimentional control of a diode based laser cutter
, 2014 Includes bibliographical referencesLaser cutting is a widely used technology in many areas of industry and research. Conventional laser cutters only offer control of two axes and either cut through a material or rudimentary control of the third dimension
Frost, Phillip John Lowne
core
Advanced Functional Materials, EarlyView.This work presents a dual‐function interface engineering strategy using PEACl to suppress the formation of the non‐perovskite δ‐FAPbI3 phase at the critical SnO2 buried interface. This approach enables the direct crystallization of the photoactive α‐phase, yielding highly efficient and stable rigid (25.6%) and flexible perovskite solar cells with ...
Xiao Wu +7 more
wiley +1 more source
Frequency stabilization of multimode diode lasers with fiber Bragg gratings
, 2022 S.21-22We present the frequency stabilization of a multimode diode laser single emitter at 1074.8 nm by use of fiber Bragg gratings in a 105/125 mm NA 0.22 fiber that is spliced to the output fiber of the diode laser.
Klein, Sarah +4 more
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Exciton Binding Energy of Phosphorescent Emitter Molecules in Organic Light‐Emitting Diodes
Advanced Functional Materials, EarlyView.Energy level alignment is key to efficient OLED design, yet determining LUMO energies remains challenging. A methodology based on field‐induced dissociation and kinetic Monte Carlo simulations is presented to extract LUMO energies of iridium‐based phosphorescent emitters from their exciton binding energy.
Hiroki Tomita +6 more
wiley +1 more source
Self-Mixing Diode Laser Interferometry
, 2010 Self-mixing interferometry in a laser diode is a very powerful tool in measurement science. The Self-mixing interferometer is a very robust and low cost interferometer with extreme simplicity in alignment and setup.
Shrestha, Pawan Kumar
core
A planar Gunn diode operating above 100 GHz [PDF]
, 2007 We show the experimental realization of a 108-GHz planar Gunn diode structure fabricated in GaAs/AlGaAs. There is a considerable interest in such devices since they lend themselves to integration into millimeter-wave and terahertz integrated circuits ...
Holland, M.C. +6 more
core +1 more source
, 2022 S.47-53Two applications emerge as drivers for higher brightness fiber-coupled diode lasers: advanced solid-state pumping schemes and materials processing.
Ehlers, B., Heinemann, S., Doerfel, F.
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