Distortion-free enhancement of THz signals measured by electro-optic sampling
Date | Do, 07.11.2013 | |
Time | 10.15 | |
Speaker | Dr. Fabian Brunner, Institute of Applied Physics, University of Bern | |
Location | Universität Bern, Institut für Angewandte Physik, Gebäude exakte Wissenschaften, Hörsaal B116, Sidlerstrasse 5, 3012 Bern | |
Program | A tutorial on the detection of THz pulses in cubic electro-optic crystals (known as electro-optic sampling) will be given. A method for the distortion-free enhancement of the THz signal will be explained in three different setup configurations derived from optically heterodyne detected optical Kerr effect spectroscopy. We could experimentally demonstrate enhancement factors larger than 10. It will be shown that electro-optic sampling can be interpreted as optical heterodyne detection under certain conditions. Furthermore, the investigation of a novel organic electro-optic crystal for efficient THz generation will be presented. Finally, ongoing work about the shift of the resonance frequency of split ring resonators at high THz electric field strengths will be discussed. | |
Link | www.iap.unibe.ch |