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Erlangen 2022 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 11: Ultra-cold plasmas and Rydberg systems (joint session A/Q)

A 11.3: Poster

Dienstag, 15. März 2022, 16:30–18:30, P

Towards an optogalvanic flux sensor for nitric oxide based on Rydberg excitationsFabian Munkes1,5, •Patrick Kaspar1,5, Yannick Schellander2,5, Lars Baumgärtner3,5, Philipp Neufeld1,5, Lea Ebel1,5, Jens Anders3,5, Edward Grant4, Robert Löw1,5, Tilman Pfau1,5, and Harald Kübler1,515. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart — 2Institut für Intelligente Sensorik und Theoretische Elektrotechnik, Universität Stuttgart, Pfaffenwaldring 47, 70569 Stuttgart — 3Institut für Großflächige Mikroelektronik, Universität Stuttgart, Allmandring 3b, 70569 Stuttgart — 4Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC Canada V6T 1Z1 — 5Center for Integrated Quantum Science and Technology, Universität Stuttgart

We demonstrate the applicability of a new kind of gas sensor based on Rydberg excitations. From a gas mixture the molecule in question is excited to a Rydberg state. By succeeding collisions with all other gas components this molecule becomes ionized and the emerging electrons can be measured as a current. We investigate the excitation efficiency dependent on the used laser powers, the applied charge-extraction voltage as well as the overall gas pressure.

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