Erlangen 2022 – scientific programme
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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
Tuesday, March 15, 2022, 16:30–18:30, P
Towards an optogalvanic flux sensor for nitric oxide based on Rydberg excitations — Fabian 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 Kübler1,5 — 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.