A5072171392- Terahertz technology and applications
- Superconducting and THz Device Technology
- Photonic and Optical Devices
- Particle Accelerators and Free-Electron Lasers
- Semiconductor Quantum Structures and Devices
- Spectroscopy and Laser Applications
- Physics of Superconductivity and Magnetism
- Semiconductor Lasers and Optical Devices
- Gyrotron and Vacuum Electronics Research
- Laser Material Processing Techniques
- Advanced Surface Polishing Techniques
- Fluid Dynamics and Thin Films
- Atomic and Subatomic Physics Research
- Microwave Engineering and Waveguides
- Laser Design and Applications
- Advanced Chemical Physics Studies
- Tribology and Lubrication Engineering
- Adhesion, Friction, and Surface Interactions
- Advancements in Transdermal Drug Delivery
- HIV-related health complications and treatments
- Spectroscopy and Quantum Chemical Studies
- Spectroscopy Techniques in Biomedical and Chemical Research
- Cold Atom Physics and Bose-Einstein Condensates
- Laser-Plasma Interactions and Diagnostics
- Millimeter-Wave Propagation and Modeling
Karlsruhe Institute of Technology
2018-2020
Ruhr University Bochum
2013
Lawrence Berkeley National Laboratory
1998-1999
University of California, Berkeley
1999
Abstract The Horizon 2020 project EuPRAXIA (European Plasma Research Accelerator with eXcellence In Applications) is producing a conceptual design report for highly compact and cost-effective European facility multi-GeV electron beams accelerated using plasmas. will be set up as distributed Open Innovation platform two construction sites, one focus on beam-driven plasma acceleration (PWFA) another site laser-driven (LWFA). User areas at both sites provide access to free-electron laser pilot...
Uncooled terahertz (THz) detectors with low noise-equivalent power (NEP) are especially important for the application of non-destructive sensing in many fields. Antenna-coupled THz microbolometers meander thermistors titanium (Ti) and Platinum (Pt) studied to develop room-temperature detectors. The responsivity NEP microbolometer a Ti thermistor much improved 1 irradiation comparison those previous one straight thermistor. performance bolometer is better than Pt Those results can be...
High-detectivity room-temperature terahertz (THz) detectors are expected to be utilized in spectroscopy and imaging for such applications as inspection safety, nondestructive sensing industry construction, noninvasive examination medicine pharmacy. We have studied THz antenna-coupled bolometers with titanium (Ti) thermistor heater fabricated on a high-resistivity silicon (Si) substrate MEMS structures order develop uncooled high-performance sensors. In this paper, we report the study design,...
In order to make room-temperature terahertz (THz) detectors with high-detectivity, we have studied THz antenna-coupled bolometers titanium (Ti) meander-line thermistor fabricated on a high-resistivity silicon (Si) substrate by MEMS process. this paper, report the spectrum of responsivity which spreads at least in range 0.1 width around 1 THz. There are high-responsivity bands orders 1000 V/W spectrum. Thanks and low noise metal thermistors, achieved good noise-equivalent power (NEP) 10-11...
Abstract In this work we describe the design process of a grating spectrometer with fast superconducting THz detectors based on Niobiumnitride. The main application is use as diagnostic tool for accelerator-based sources radiation like synchrotrons, where interactions electron bunches in storage ring lead to fluctuations spectrum and intensity emitted radiation. Guidelines two parts, detector design, are given. Here, blazed reflection frequency range 1 5 has been developed successfully...
We have used THz absorption spectroscopy as a tool to probe the collective hydration dynamics of ions and proteins. Whereas in bulk water, hydrogen bonds break reform every picosecond on average, vicinity solutes like proteins, water molecules show retardation rearrangement dynamics. report here spectroscopic measurements anions well proteins explain underlying molecular mechanism these systems.
The Institute of Space Sensor Technology the German Aerospace Center (DLR) is developing a heterodyne array receiver for frequency range 2 to 6 THz Stratospheric Observatory Infrared Astronomy (SOFIA). Key science issues in that are observation lines atoms [e.g. (OI)], ions (CII), (NII)], and molecules (e.g. OH, HD, CO) with high spectral resolution study dynamics evolution galactic extragalactic objects. Long term goal development an integrated superconducting hot electron bolometric (HEB)...
Germanium terahertz (THz) lasers based on a heavy hole-light hole population inversion within the valence bands show strong promise for widespread applications due to their unparalleled frequency tuning range and high output power up several Watts. have attractive laser properties: tunability from 1 4 THz, finesse of 10<SUP>6</SUP> with line widths below MHz linear polarization. Laser operation is possible small mm- sized permanent magnets closed-cycle refrigeration. Since 1995 we increased...