News
Dirk Heinecke - an external diploma student of the AG Dekorsy at NIST - received the Best Student Oral Paper Award at the ASSP-conference in San Diego.
Germans most popular science magazine "Bild der Wissenschaft" reports on Terahertz research within the Center of Applied Photonics/AG Dekorsy.
SCIENCE reports about laser devolpment of the Center for Applied Photonics at the Universtiy of Konstanz (link to paper)
Press release of the Universtiy of Konstanz
Press release National Institute of Standards and Technology, USA
New pulse energy record with a picosecond laser oscillator in cooperation with TRUMPF Lasers
Download Video
Welcome
After the century of the electron, in which the transistor with its continuous miniaturization changed our daily life enormously, it is expected that photonic technologies increasingly gain importance in the 21st century. Photonic technologies are concerned with the generation and technological utilization of photons. With optical data storage technologies (CD and DVD) or optical data transfer in glass fibers, photonics has a strong impact on every day life. For the further development of optical technologies the quest for new materials and principles to generate and manipulate photons is necessary.
Processes proceeding on very short time scales are of particular interest when exploring the interaction between photons and solid state materials. In our perception, life stand still on a femtosecond time scale (1fs = 1E-15s). Within one femtosecond a supersonic airplane travels the distance of an atom. In semiconductors and semiconductor based quantum structures important processes are taking place on such short time scales: Electronic wave packets loose their coherence, electrons scatter with each other or pass on energy to crystal oscillations. With the development of femtosecond lasers the generation of stroboscopic pictures of such fast processes became possible utilizing a technique called pump-probe spectroscopy.
Our team is concerned with the further development of femtosecond technologies; e.g. the deployment of femtosecond laser sources and state-of-the-art measurement technologies. Partially these projects are part of the Center of Applied Photonics at Konstanz University. We perform time resolved pump-probe and terahertz spectroscopy (1THz = 1E12s) on solids and semiconductor based quantum structures. Furthermore, utilizing photoconductive switches in combination with scanning probe techniques, time resolved methods are being developed in order to achieve a high temporal and spatial resolution for the investigation of electron dynamics in nanostructures. This project is part of the SFB 767.
