Scientific activities, Results and Material Classes

Terahertz/Infrared Science and Technology
Experimental technique
Spin in Semiconductors
- Spin-Galvanic Effect
- Spin Orientation by Electric Current
- Zero-Bias Spin Separation
- Pure Spin Currents
- Spin Orientation by Tunneling
- Spin Hall Photoconductance
- Helical Edge and Bulk States in Topological Insulators
- Spin Helix
- Spin-Polarized Electric Photocurrents
Cyclotron Resonance Induced Opto-Electronic Phenomena
Microwave -(Terahertz-) Induced Resistance Oscillations and Related Phenomena
Ratchets and Magneto-Ratchet Phenomena
Plasmonics, Plasmonic Terahertz Interferometer
Electron Gas Heating
Nonlinear Optics and Optoelectronics
Terahertz Spectroscopy at High Excitation Level
- THz Tunneling
- Multiphoton Processes
- Absorption Saturation
- Impact Ionization
Near Field Effects
Plasma Reflection induced Photoelectric Phenomena
Bloch Oscillations
Chaos, Current Filaments, Pattern Formation
Terahertz Spectroscopy for Material Science:
- Opto-Electronic Characterization of TIs and Graphene
- Spin Properties
- Rashba/Dresselhaus Effects
- Band Structure
- Spin-, Energy- and Momentum Relaxation
- Deep Impurities
- Cyclotron Masses and g-Factor
Terahertz Technology:
- Detectors
- Devices for Generation and Detection of Subnanosecond IR and THz(FIR) Radiation Pulses
- Polarizers
- THz/IR spectroscopy
- Terahertz Split-Ring Metamaterials as Transducers for Chemical Sensors
Medical Studies (IR/THz Research of Human Teeth and Blood)

Material Classes