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A Compact Broadband Marchand Balun for Millimeter-wave and Sub-THz Applications
/en/research/publications/a-compact-broadband-marchand-balun-for-millimeter-wave-and-sub-thz-applications
This paper presents a compact broadband millimeter-wave Marchand balun, realized using indium phosphide (InP) transferred substrate (TS) technology. The architecture of this balun is based on a…
Modeling the Noise of Transferred-Substrate InP DHBTs at Highest Frequencies
/en/research/publications/modeling-the-noise-of-transferred-substrate-inp-dhbts-at-highest-frequencies
This paper investigates noise modeling of transferred-substrate indium phosphide double heterobipolar transistors (InP DHBTs). It is shown that the shot noise of these devices exhibits a pronounced…
Mode-locked diode lasers as sources for Two-Photon Polymerization
/en/research/publications/mode-locked-diode-lasers-as-sources-for-two-photon-polymerization
Mode-locked diode lasers as sources for Two-Photon Polymerization N. Surkampa, G. Zylab, E.L. Gurevichb,d, C. Esenb, A. Klehrc, A. Kniggec, A. Ostendorfb,…
Improved performance of UVC-LEDs by combination of high-temperature annealing and epitaxially laterally overgrown AlN/sapphire
/en/research/publications/improved-performance-of-uvc-leds-by-combination-of-high-temperature-annealing-and-epitaxially-laterally-overgrown-alnsapphire
We report on the performance of AlGaN-based deep ultraviolet light-emitting diodes (UV-LEDs) emitting at 265 nm grown on stripe-patterned high-temperature annealed (HTA) epitaxially laterally…
Direct SERDS sensing of molecular biomarkers in plants under field conditions
/en/research/publications/direct-serds-sensing-of-molecular-biomarkers-in-plants-under-field-conditions
Molecular biomarkers such as microRNAs (miRNAs) play important roles in regulating various developmental processes in plants. Understanding these pathways will help bioengineer designing organisms…
Structural and electrical properties of Pd/p-GaN contacts for GaN-based laser diodes
/en/research/publications/structural-and-electrical-properties-of-pdp-gan-contacts-for-gan-based-laser-diodes
In this paper, the properties of Pd-based p-contacts on GaN-based laser diodes are discussed. Pd is often the metal of choice for ohmic contacts on p-GaN. However, for Pd/p-GaN ohmic contacts,…
Effect of unevenly-distributed V pits on the optical and electrical characteristics of green micro-light emitting diode
/en/research/publications/effect-of-unevenly-distributed-v-pits-on-the-optical-and-electrical-characteristics-of-green-micro-light-emitting-diode
In this study, we investigated the effect of different-size V pits on the opto-electrical performance of different-size InGaN-based green (520 nm) light-emitting diodes (LEDs). The size of V…
Recent Progress in Photonic Processing of Metal-Oxide Transistors
/en/research/publications/recent-progress-in-photonic-processing-of-metal-oxide-transistors
Over the past few decades, significant progress has been made in the field of photonic processing of electronic materials using a variety of light sources. Several of these technologies have now been…
Frequency dependence of the capacitive excitation of plasma: An experimental proof
/en/research/publications/frequency-dependence-of-the-capacitive-excitation-of-plasma-an-experimental-proof
Today, most of the microwave plasma sources are driven at 2.45 GHz. Meanwhile, GaN technology offers high-power components working efficiently at higher frequencies. Therefore, the perspective…
Continuous Wave THz System Based on an Electrically Tunable Monolithic Dual Wavelength Y-Branch DBR Diode Laser
/en/research/publications/continuous-wave-thz-system-based-on-an-electrically-tunable-monolithic-dual-wavelength-y-branch-dbr-diode-laser
We analyse the use of a tunable dual wavelength Y-branch DBR laser diode for THz applications. The laser generates electrically tunable THz difference frequencies in the range between 100 and…