SAMOP 2023 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 59: Poster IV

Q 59.49: Poster

Thursday, March 9, 2023, 16:30–19:00, Empore Lichthof

Vacuum-integration of a double-tip fiber microscope — •Florian Giefer, Lukas Tenbrake, Sebastian Hofferberth, and Hannes Pfeifer — Institute of Applied Physics, University of Bonn, Germany

Multi-mode cavity optomechanical systems are a promising platform for investigating many body dynamics, for distributed sensing, and optomechanical circuits. A prominent implementation of optomechanical experiments is the membrane-in-the-middle setup, where a thin suspended film is placed inside of an optical fiber Fabry-Perot cavity. To extend this platform towards multiple mechanical resonators with tailored properties we envisage employing 3D direct laser written membrane structures that are placed on a DBR substrate and interfaced using multiple fiber-tip integrated mirrors. To reduce mechanical dampening by surrounding air, our structures need to be placed in a vacuum environment. Based on the concept of "scanning cavity microscopes" introduced by Mader et al., we develop an experimental setup capable of interfacing optomechanical structures on DBR substrates in vacuum using two fiber mirrors with complete position control. We present the design, implementation challenges and future prospects of our experimental setup.