Suche
Regeln für die Suche
- Nur Wörter mit 2 oder mehr Zeichen werden akzeptiert
- Maximal 200 Zeichen insgesamt
- Leerzeichen werden zur Trennung von Worten verwendet, "" kann für die Suche nach ganzen Zeichenfolgen benutzt werden (keine Indexsuche)
- UND, ODER und NICHT sind Suchoperatoren, die den standardmäßigen Operator überschreiben. +/|/- entspricht UND, ODER und NICHT als Operatoren
- Alle Suchwörter werden zu Kleinschreibung konvertiert
The influence of skin barrier disruption and melanin content on the formation of DNA lesions and radicals in ex vivo human skin induced by 233 nm far-UVC irradiation from LEDs
/forschung/publikationen/the-influence-of-skin-barrier-disruption-and-melanin-content-on-the-formation-of-dna-lesions-and-radicals-in-ex-vivo-human-skin-induced-by-233-nm-far-uvc-irradiation-from-leds
As reported recently, 233 nm radiation emitted by a spectrally pure UVC LED source shows sufficient bactericidal properties at an applied dose between 20 and 80 mJ/cm2. In ex vivo human skin and…
Characteristics of monolithic multisection distributed-Bragg-reflector master-oscillator power-amplifiers
/forschung/publikationen/characteristics-of-monolithic-multisection-distributed-bragg-reflector-master-oscillator-power-amplifiers
We report theoretical results on the wavelength stability of a multisection master-oscillator power-amplifier emitting at 1064 nm. We use a traveling wave equation model to calculate the optical…
Ridge waveguide lasers with vertically stacked quantum wells and tunnel junctions
/forschung/publikationen/ridge-waveguide-lasers-with-vertically-stacked-quantum-wells-and-tunnel-junctions
We report on the fabrication and electro-optical performance of ridge waveguide (RW) lasers emitting near 905 nm based on a vertical layer structure consisting of three single quantum wells…
Low-threshold AlGaN-based UVB VCSELs enabled by post-growth cavity detuning
/forschung/publikationen/low-threshold-algan-based-uvb-vcsels-enabled-by-post-growth-cavity-detuning
The performance of vertical-cavity surface-emitting lasers (VCSELs) is strongly dependent on the spectral detuning between the gain peak and the resonance wavelength. Here, we use angle-resolved…
Portable shifted excitation Raman difference spectroscopy for on-site soil analysis
/forschung/publikationen/portable-shifted-excitation-raman-difference-spectroscopy-for-on-site-soil-analysis
On-site soil analysis in the framework of precision agriculture is gaining significant importance to achieve improved crop productivity, increased soil health and reduced fertilizer application. In…
Modeling of Hot-Via Technology for System-in-Package at Millimeter-wave Frequencies
/forschung/publikationen/modeling-of-hot-via-technology-for-system-in-package-at-millimeter-wave-frequencies
Hot via technology plays an important role for system integration at millimeter-wave frequencies. Accurate prediction of the parasitics is necessary to ensure proper impedance matching for system…
Electrical properties and microstructure of V/Al/Ni/Au contacts on n-Al0.65Ga0.35N:Si with different Au thicknesses and annealing temperature
/forschung/publikationen/electrical-properties-and-microstructure-of-valniau-contacts-on-n-al065ga035nsi-with-different-au-thicknesses-and-annealing-temperature
We investigated the formation of ohmic contacts as a result of intermetallic phase formation between V, Al, Ni, and Au in V/Al/Ni/Au metal stacks on n-Al0.65Ga0.35N:Si. In particular, the influence…
Simulation of the Spectral Behavior in High-Power Distributed Feedback Lasers above Threshold
/forschung/publikationen/simulation-of-the-spectral-behavior-in-high-power-distributed-feedback-lasers-above-threshold
We report on the simulations of mode hopping behavior in semiconductor distributed feedback lasers with asymmetric facet reflectivities above threshold and its dependence on the phase between the…
Numerical Analysis of High-Brightness Tapered Ridge-Waveguide Lasers
/forschung/publikationen/numerical-analysis-of-high-brightness-tapered-ridge-waveguide-lasers
In this work, we present a simulation-based analysis of a CW driven tapered ridge-waveguide laser having a high lateral brightness of 5W·mm-1mrad-1 at 2.5W optical output power.
Wideband Vector Corrected Measurements on a Modified Vector Network Analyzer (VNA) System
/forschung/publikationen/wideband-vector-corrected-measurements-on-a-modified-vector-network-analyzer-vna-system
Vector corrected wideband measurements on a modified vector network analyzer system are presented using wideband modulated signals as stimulus. The modified system allows intermediate frequency (IF)…