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Search results 341 until 350 of 4175

Quantum Science Finding its Way Into Satellite Technology

/en/media-center/media-review/quantum-science-finding-its-way-into-satellite-technology

DUBAI, United Arab Emirates — Quantum technology might evoke science fiction tropes like shrinking humans and time travel, but experts think it has real-world applications to secure and improve space…

Monolithic dual-wavelength diode laser for generating THz radiation in spectroscopic applications

/en/research/research-news/monolithic-dual-wavelength-diode-laser-for-generating-thz-radiation-in-spectroscopic-applications

FBH’s new near-infrared monolithic Y-branch diode lasers provide tunable dual-wavelength laser emission. This enables continuous-wave THz radiation via photomixing, advancing compact THz spectroscopy.

Spectral components, initial improvement and degradation of 265 nm UV-C LEDs

/en/research/publications/spectral-components-initial-improvement-and-degradation-of-265-nm-uv-c-leds

Spectral components, initial improvement and degradation of 265 nm UV-C LEDs C. De Santia, F. Pivaa, M. Buffoloa,b, N. Roccatoa, M. Pilatia, S. Longatoa,…

Thermal Lens Manipulation Using Edge-Heaters in Laser Bars for Improved Efficiency and Divergence

/en/research/publications/thermal-lens-manipulation-using-edge-heaters-in-laser-bars-for-improved-effciency-and-divergence

We present here an approach to flattening the lateral thermal lens that develops in kW-class semiconductor laser bars consisting of multiple broad-area emitters and is responsible for limiting the…

Modeling the capacitance–voltage characteristics of AlGaN-based UV-C LEDs

/en/research/publications/modeling-the-capacitance-voltage-characteristics-of-algan-based-uv-c-leds

We propose a detailed approach for modeling the C–V characteristic of complex heterostructurebased devices, investigating the case of UV-C LEDs. The study is based on combined experimental…

Editorial

/en/research/publications/editorial

After initial proof-of-concept demonstrations, power- and efficiency-scaling are a central goal of semiconductor laser development, for broad societal benefits, reducing energy consumption and…

Defects and reliability of UVC-LEDs

/en/research/publications/defects-and-reliability-of-uvc-leds

Defects and reliability of UVC-LEDs M. Buffolo1, F. Piva1, N. Roccato1, C. De Santi1, T. Wernicke2, J. Höpfner2, M. Schilling2, A. Muhin2,…

Light Extraction and External Quantum Efficiency of 235 nm Far–Ultraviolet-C Light-Emitting Diodes on Single-Crystal AlN Substrates

/en/research/publications/light-extraction-and-external-quantum-efficiency-of-235nm-far-ultraviolet-c-light-emitting-diodes-on-single-crystal-aln-substrates

The effect of bulk AlN single-crystal substrate thickness on the light extraction efficiency and external quantum efficiency of far ultraviolet-C light emitting diodes (far-UVC LEDs) has been…

Importance of Scaling in RF GaN HEMTs for Reduction of Surface Traps-Induced Drain Lag

/en/research/publications/importance-of-scaling-in-rf-gan-hemts-for-reduction-of-surface-traps-induced-drain-lag

Drain lag is a well-known phenomenon that leads to radio frequency performance degradation in AlGaN/GaN high-electron-mobility transistors. Herein, it is demonstrated that a reduction of the…

Time-Resolved Investigations of the Capacitive to Inductive Transition in a Microwave-Driven Plasma Source

/en/research/publications/time-resolved-investigations-of-the-capacitive-to-inductive-transition-in-a-microwave-driven-plasma-source

Measurement of resonances requires data acquisition at different frequencies. Tracing the evolution of a resonance, therefore, requires a long time for each step. Reproducible events allow us to…