Sapphire high-Q low temperature transducer for resonant bar gravitational wave antennas

A very high quality factor sapphire dielectric resonator transducer is shown to be an extremely sensitive readout device for a resonant bar gravitational wave antenna. The transducer has the possibility of allowing operation below the standard quantum limit. Tests on a prototype transducer with qual...

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Bibliographic Details
Published in:Physics letters. A 1996-02, Vol.211 (3), p.139-142
Main Authors: Bilenko, I.A., Ivanov, E.N., Tobar, M.E., Blair, D.G.
Format: Article
Language:English
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Summary:A very high quality factor sapphire dielectric resonator transducer is shown to be an extremely sensitive readout device for a resonant bar gravitational wave antenna. The transducer has the possibility of allowing operation below the standard quantum limit. Tests on a prototype transducer with quality factor up to Q ⋍ 4 × 10 8 are described.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(95)00959-0