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Suchergebnisse 1831 bis 1840 von 5349

Degradation of AlGaN-based UV-C SQW LEDs analyzed by means of capacitance deep-level transient spectroscopy and numerical simulations

/forschung/publikationen/degradation-of-algan-based-uv-c-sqw-leds-analyzed-by-means-of-capacitance-deep-level-transient-spectroscopy-and-numerical-simulations

The lifetime of deep-ultraviolet light-emitting diodes (LEDs) is still limited by a number of factors, which are mainly related to semiconductor defects, and still need to be clarified. This paper…

234 nm far-ultraviolet-C light-emitting diodes with polarization-doped hole injection layer

/forschung/publikationen/234-nm-far-ultraviolet-c-light-emitting-diodes-with-polarization-doped-hole-injection-layer

Far-ultraviolet-C (far-UVC) light-emitting diodes (LEDs) with an emission wavelength of 234 nm with different polarization-doped AlGaN hole injection layers (HILs) are compared regarding their…

Low-loss SH-propagation in nanoscale AlGaAs-on-insulator waveguides for nonlinear quantum light sources operating with telecom wavelengths

/forschung/publikationen/low-loss-sh-propagation-in-nanoscale-algaas-on-insulator-waveguides-for-nonlinear-quantum-light-sources-operating-with-telecom-wavelengths

We report unprecedentedly low second harmonic band propagation losses in highly nonlinear AlGaAs-on-insulator waveguides pumped in the telecom L-band. These findings pave the way towards parametric…

Improvement of Lifetime of Semiconductor Optical Amplifiers for BECCAL

/forschung/publikationen/improvement-of-lifetime-of-semiconductor-optical-amplifiers-for-beccal

Improved laser facet passivation suppresses catastrophic optical mirror damage in 1064 nm and 767 nm ridge waveguide amplifiers. Accelerated lifetests reveal a reliability of more than 99% over the…

Carrier Non-pinning at Stripe Edges and Widened Far field in Broad-Area Lasers due to Longitudinal Temperature Variation

/forschung/publikationen/carrier-non-pinning-at-stripe-edges-and-widened-far-field-in-broad-area-lasers-due-to-longitudinal-temperature-variation

2D-in-plane spontaneous emission studies reveal lateral carrier-non-pinning linked to longitudinal temperature variation in 9xx-nm broad-area-lasers. Front-side non-pinning at the stripe edges…

Investigations on Amplification of Feedback in Single-Mode Ridge Waveguide Optical Amplifiers at 767nm

/forschung/publikationen/investigations-on-amplification-of-feedback-in-single-mode-ridge-waveguide-optical-amplifiers-at-767nm

We present an experimental setup to investigate the sensitivity of ridge waveguide semiconductor optical amplifiers to optical feedback. We determine the amplification in forward and backward…

Mechanical Simulation of A Hybrid Micro-Integrated Diode Laser Module Developed for Space-Borne Application

/forschung/publikationen/mechanical-simulation-of-a-hybrid-micro-integrated-diode-laser-module-developed-for-space-borne-application

We present the mechanical simulations of a compact laser module intended for space-borne application on a small satellite. The device is designed to withstand the 10+ grms random vibration without…

Bragg Grating Based Frequency Reference Module for Operation in Quantum Technology Applications

/forschung/publikationen/bragg-grating-based-frequency-reference-module-for-operation-in-quantum-technology-applications

We present the design of a novel Bragg grating based frequency reference with an expected frequency accuracy of 50MHz and a tuning range of more than 20GHz optimized for potassium-based quantum…

Trapping in Al2O3/GaN MOScaps investigated by fast capacitive techniques

/forschung/publikationen/trapping-in-al2o3gan-moscaps-investigated-by-fast-capacitive-techniques

We present a detailed investigation of charge trapping processes in Al2O3/GaN vertical MOS capacitors, detected by means of advanced capacitance measurements. The devices stressed at positive bias…

Optimization of Iridium RF-Sputter Process for AlGaN/GaN-based HEMT Gate Technology

/forschung/publikationen/optimization-of-iridium-rf-sputter-process-for-algangan-based-hemt-gate-technology

Sputtered iridium films are the key element of FBH´s unique Schottky metal gate technology for AlGaN/GaN HEMT devices. Due to the piezoelectric properties of the AlGaN/GaN system, the metal…