Regensburg 2019 – wissenschaftliches Programm
O 64.7: Poster
Mittwoch, 3. April 2019, 17:45–20:00, Poster B1
Phase-resolved detection of strong terahertz nearfields — •Moritz Heindl and Georg Herink — Experimental Physics VIII, University of Bayreuth, Germany
Table-top schemes to generate ultrafast radiation in the terahertz spectral range enable access to strong sub-picosecond field transients at increasingly high repetition rates. This opens up novel schemes for ultrafast probing and control of quantum systems. Nanostructures, e.g., micro-antennas and micro-slits, can further enhance the electric fields by orders of magnitude. The exact knowledge of the absolute local field strengths is highly desirable and has been realized with electron nearfield streaking , electron microscopy  and electro-optical sampling . Here, we present an all-optical widefield approach to detect the absolute values of the THz electric fields on a subwavelength scale. This provides a defined platform to study THz field-driven dynamics in complex nanostructures.
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