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Task T2 – Working group Auriga-LNL

Task T2 – Working group Auriga-LNL. Sub-task: Test and set-up of high finesse cavities at low temperature. Present state. Room temperature cavities F>10 4 tested Optical transducer cavity Cryogenic test facility. First 18 months (starting now).

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Task T2 – Working group Auriga-LNL

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  1. Task T2 – Working group Auriga-LNL Sub-task: Test and set-up of high finesse cavities at low temperature Present state • Room temperature cavities F>104 tested • Optical transducer cavity • Cryogenic test facility First 18 months (starting now) First measurements at low temperature on the transducer cavity Rest of the time (months 19-36) Cool down of a dedicated facility

  2. Task T2 – Working group Auriga-LNL Sub-task: Dynamic photo-thermal effect measurements at low temperature Present state • Room temperature measurement of photo-thermal • Optical transducer cavity almost ready • Cryogenic test facility ready First 18 months (start month 13) Development of an high sensitivity (kHz region) optical bench Rest of the time (months 19-36) • Measurement of photo-thermal effect at low temperature for fused silica

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