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Talk27 min

Partially-levitated membranes for high-frequency gravitational wave (HFGW) detection

Christoph Reinhardt · CERN

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About

Patterned thin films that are freely suspended from a silicon chip (i.e., membranes) are some of the lowest-loss mechanical oscillators.

As such, they provide an exceptional level of isolation from the noisy environment, similar to what has been achieved with levitated nanoparticles.

Here, I will present a concept for a HFGW detector, which corresponds to a Michelson interferometer with a membrane incorporated in each arm cavity.

In addition to explaining the underlying operating principle, I will provide details on achieving a sensitivity comparable to the target for the Levitated Sensor Detector, which relies on optically levitated stacks instead of membranes. (see dedicated talks).

In this regard, a particular focus will be on realizing suitable membranes, which requires significantly reducing their intrinsic loss..

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The talk

  1. Partially-levitated membranes for high-frequency gravitational wave (HFGW) detection 2023-12-05 · 27 min · CERN's player

Credits and licence

Institution
CERN
Department
TH institutes
Speaker
Christoph Reinhardt
Year
2023
Language
English
Source
CERN
Licence
CERN, as CERN states it. CERN's terms
Attribution
© CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
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