Rostock 2019 – scientific programme
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A: Fachverband Atomphysik
A 11: Ultra-cold plasmas and Rydberg systems
A 11.16: Poster
Tuesday, March 12, 2019, 16:30–18:30, S Fobau Physik
A rydberg-atom based detector for terahertz radiation — •Lara Torralbo-Campo1, Manuel Kaiser1, Raphael Wieland1, Fabian Rudau1, Jens Grimmel1, Xiang Lue2, Lutz Schrottke2, Holger Grahn2, Reinhold Kleiner1, and Jozsef Fortagh1 — 1Universität Tübingen, Physikalisches Institut, Auf der Morgenstelle 14, 72076 Tübingen — 2Paul-Drude-Institut fuer Festkoerperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V
Rydberg atoms have proven to be an excellent sensitive probe to electromagnetic fields. Here, we present our ongoing development of a Rydberg atom-detector using a four atomic level scheme based on electromagnetically induced transparency (EIT) in a hot atomic vapour. This detector is used to characterize different types of terahertz (THz) source emitters such as superconductors emitters and quantum cascade lasers.
Besides, THz induced single atom transitions and subsequent single atom counting in an ultracold atomic cloud, making the detector suitable for the measurement of photon statistics of the THz emitters.
This detector will enhance the technological development of new THz sources and detectors.