Related papers: Mechanical characterization of a membrane with an on-chip loss shield in a cryogenic environment

Mechanical characterization of a membrane with an on-chip loss shield in a cryogenic environment

URL: http://arxiv.org/abs/2503.22602v1
Date: Fri, 28 Mar 2025 16:45:02 GMT
Title: Mechanical characterization of a membrane with an on-chip loss shield in a cryogenic environment
Authors: Francesco Marzioni, Riccardo Natali, Michele Bonaldi, Antonio Borrielli, Enrico Serra, Bruno Morana, Francesco Marin, Francesco Marino, Nicola Malossi, David Vitali, Giovanni Di Giuseppe, Paolo Piergentili,
Abstract summary: This work is focused on the mechanical characterization via an optical interferometric probe, down to T=18 mK, of a loss-shielded metalized membrane designed for this purpose.<n>A stroboscopic technique has been exploited for revealing a mechanical quality factor up to 64 millions at the lowest temperature.
Score: 0.028124845703363974
License: http://creativecommons.org/licenses/by-nc-nd/4.0/
Abstract: The quantum transduction of an rf/microwave signal to the optical domain, and viceversa, paves the way to novel technologies which exploit the advantages of each domain to perform quantum operations. Since electro-optomechanical devices implement a simultaneous coupling of a mechanical oscillator to both an rf/microwave field and an optical field, they are suitable for the realization of a quantum transducer. The membrane-in-the-middle setup is a possible solution, once that its vibrational mode is cooled down to ultra cryogenic temperature for achieving quantum operation. This work is focused on the mechanical characterization via an optical interferometric probe, down to T=18 mK, of a loss-shielded metalized membrane designed for this purpose. A stroboscopic technique has been exploited for revealing a mechanical quality factor up to 64 millions at the lowest temperature. In fact, with continuous illumination and a cryostat temperature below 1 K, the heat due to optical absorption is not efficiently dissipated anymore, and the membrane remains hotter than its environment.

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