Research Activities
Optoelectronics
- Members
- D. Papazoglou, N. Pelekanos, P. Savvidis, S. Tzortzakis, G. Kioseoglou
Ultrafast dynamics measurements setup
The activities in this field are mainly directed towards the study and
exploitation of fundamentally novel processes which could potentially
allow dramatic improvement in the performance of optoelectronic
devices. One such example is the phenomenon of polariton lasing or
condensation which requires no population inversions in comparison to
conventional semiconductor lasers exhibiting ultralow lasing
thresholds. This effort has recently led to the spectacular
demonstration of an electrically pumped GaAs polariton LED device
which operates near room temperature, published in Nature.
The facilities at our disposal cover wide spectrum starting from sample growth by MBE techniques, processing and device fabrication in a state of the art cleanroom as well as optical and electrical characterization.
The main general interests include:
Single dot spectroscopy setup
- Novel optoelectronic and nanophotonic devices
- Ultrafast non-linear interactions in semiconductor and organic microcavities
- Room temperature polaritonics and devices
- Physics and applications of semiconductor nanostructures
- Laser based fabrication of integrated photonic structures
- Nonlinear interaction of intense ultra-short laser pulses with transparent media
Current research topics:
- Polariton based devices and applications (N. Pelekanos, P. Savvidis)
- Nonlinear phenomena in organic microcavities and Bragg structures (P. Savvidis)
- Strong coupling at room temperature (P. Savvidis, N. Pelekanos)
- Hybrid organic-inorganic polariton LEDs (P. Savvidis)
- Single photon sources based on piezoelectric quantum dots (N. Pelekanos)
- Semiconductor nanowires: physics and applications (N. Pelekanos)
- R&D for improved nitride-based blue/green optoelectronics (N. Pelekanos)
- Micro/nano-structuring in the bulk of transparent media (D. Papazoglou, S. Tzortzakis)
- Light Bullets, novel applications of non-diffracting beams (D. Papazoglou, S. Tzortzakis)
- Plasma photonic devices (D. Papazoglou, S. Tzortzakis)
- Strong THz fields and applications (S. Tzortzakis)
- Nonlinear laser propagation and filamentation (S. Tzortzakis)
- Quantum and complexity physics with photonic lattices (S. Tzortzakis)
Laboratory Links
- Nanoscale Optoelectronics Lab
- Laser—Matter Interactions Lab
- Spectroscopy Lab