Erlangen 2022 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 22: Precision Measurements and Metrology I (joint session Q/A)
Q 22.6: Poster
Tuesday, March 15, 2022, 16:30–18:30, P
Hybridized atom interferometer with an opto-mechanical resonator — •Ashwin Rajagopalan1, Lee Kumanchik2,3, Claus Braxmaier2,3, Felipe Guzmán4, Ernst M. Rasel1, Sven Abend1, and Dennis Schlippert1 — 1Leibniz Universität Hannover, Institut für Quantenoptik, Hannover — 2DLR - Institute of Space Systems, Bremen — 3University of Bremen - Center of Applied Space Technology and Microgravity (ZARM),Bremen — 4Department of Aerospace Engineering & Physics, Texas A&M University, College Station, TX 77843, USA
Vibrational noise coupling through the inertial reference mirror hinders the atom interferometer (AI) performance, so we use a novel opto-mechanical resonator (OMR) in order to suppress it. We have utilized the OMR signal to resolve a T = 10 ms AI fringe, which would have otherwise been obscured by an average ambient vibrational noise of 3.2 mm/s2 in our laboratory. By incorporating the OMR in our AI we could demonstrate operation in a noisy environment without the use of bulky vibration isolation equipment, therefore paving a way for miniaturization of the AI sensor head. We show our sensor fusion concept and discuss prospects for tailored setups by design and implementation of customized OMRs.
Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy - EXC-2123 QuantumFrontiers - 390837967. This work is supported by the DLR with funds provided by the BMWi under grant no. DLR 50RK1957 (QGyro) and DLR 50NA2106 (QGyro+).