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HL: Fachverband Halbleiterphysik

HL 64: Poster II

HL 64.25: Poster

Donnerstag, 19. März 2020, 10:00–13:00, P1A

Manipulating quantum dot luminescence via strong THz fields — •Moritz Heindl and Georg Herink — Experimental Physics VIII, University of Bayreuth, Germany

The investigation and manipulation of ultrafast electron dynamics at the nanoscale requires precise characterization of local electric field transients. For this purpose, the field-dependent change of the luminescence of semiconductors due to the quantum confined Stark effect can be employed. Here, we present an experimental scheme to locally modify quantum dot luminescence by field enhancement at planar nanostructures, e.g. micro-antennas and micro-slits. For ultrafast probing and control, we employ high-field single-cycle THz pulses based on the tilted-pulse front scheme.