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Q: Fachverband Quantenoptik und Photonik

Q 25: Ultra-cold plasmas and Rydberg systems (joint session A/Q)

Q 25.3: Poster

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

Towards an optogalvanic flux sensor for nitric oxide based on Rydberg excitations — Fabian Munkes^1,5, •Patrick Kaspar^1,5, Yannick Schellander^2,5, Lars Baumgärtner^3,5, Philipp Neufeld^1,5, Lea Ebel^1,5, Jens Anders^3,5, Edward Grant⁴, Robert Löw^1,5, Tilman Pfau^1,5, and Harald Kübler^1,5 — ¹5. 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.