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Highly linear fundamental up-converter in InP DHBT technology for W-band applications
/en/research/publications/highly-linear-fundamental-up-converter-in-inp-dhbt-technology-for-w-band-applications
A fundamental up-converter with high linearity is presented, realized as full Gilbert cell (GC) mixer using a 800 nm transferred substrate (TS) InP-DHBT technology. The LO input of the Gilbert…
Overcoming the excessive compressive strain in AlGaN epitaxy by introducinghigh Si-doping in AlN templates
/en/research/publications/overcoming-the-excessive-compressive-strain-in-algan-epitaxy-by-introducinghigh-si-doping-in-aln-templates
The influence of compressive strain in high-quality AlN templates on the subsequent growth of AlGaN-based device layers was investigated. The AlN templates showed compressive strain of ∼-0.29%…
Bulk photovoltaic effect in carbon-doped gallium nitride revealed by anomalous surface photovoltage spectroscopy
/en/research/publications/bulk-photovoltaic-effect-in-carbon-doped-gallium-nitride-revealed-by-anomalous-surface-photovoltage-spectroscopy
A bulk photovoltaic effect was observed in insulating carbon-doped gallium nitride crystals by investigating the light-induced change of the contact potential difference with a Kelvin probe as a…
Evaluation of a GaN HEMT Half-Bridge embedded to a Multilayer Aluminum Nitride Substrate
/en/research/publications/evaluation-of-a-gan-hemt-half-bridge-embedded-to-a-multilayer-aluminum-nitride-substrate
Power electronic systems employing wide-bandgap GaN transistors promise high efficiency operation and superior power density but require minimized parasitic circuit elements and an effective cooling…
Enhanced Wall Plug Efficiency of AlGaN-Based Deep-UV LEDs Using Mo/Al as p-Contact
/en/research/publications/enhanced-wall-plug-efficiency-of-algan-based-deep-uv-leds-using-moal-as-p-contact
P-type contacts with a high reflectivity in the ultra-violet spectral region made of molybdenum/aluminum (Mo/Al) on AlGaN-based deep-ultraviolet light-emitting diodes (DUVLEDs) emitting at…
Theoretical investigation of a miniature microwave driven plasma jet
/en/research/publications/theoretical-investigation-of-a-miniature-microwave-driven-plasma-jet
Radio frequency driven plasma jets are compact plasma sources which are used in many advanced fields such as surface engineering or biomedicine. The MMWICP (miniature micro wave ICP) is a particular…
The influence of the gate trench orientation to the crystal plane on the conduction properties of vertical GaN MISFETs for laser driving applications
/en/research/publications/the-influence-of-the-gate-trench-orientation-to-the-crystal-plane-on-the-conduction-properties-of-vertical-gan-misfets-for-laser-driving-applications
The influence of the gate trench orientation to the crystal plane on the conduction properties of vertical GaN MISFETs for laser driving applications E. Bahat Treidel, O. Hilt,…
Compact diode laser based light source with alternating dual-wavelength emission at 532 nm
/en/research/publications/compact-diode-laser-based-light-source-with-alternating-dual-wavelength-emission-at-532-nm
Compact nonlinear frequency conversion of a Y-branch distributed Bragg reflector (DBR) diode laser for alternating dual-wavelength laser emission at 532 nm is presented for the very first time.…
Impact of the capture time on the series resistance of quantum-well diode lasers
/en/research/publications/impact-of-the-capture-time-on-the-series-resistance-of-quantum-well-diode-lasers
Electrons and holes injected into a semiconductor heterostructure containing quantum wells are captured with a finite time. We show theoretically that this very fact can cause a considerable excess…
Deterministic positioning of nanophotonic waveguides around single self-assembled quantum dots
/en/research/publications/deterministic-positioning-of-nanophotonic-waveguides-around-single-self-assembled-quantum-dots
The capability to embed self-assembled quantum dots (QDs) at predefined positions in nanophotonic structures is key to the development of complex quantum-photonic architectures. Here, we demonstrate…