Very high quality factor measured in annealed fused silica

Alexandr Ageev , Belkis Cabrera Palmer , Antonio De Felice , Steven D. Penn , Peter R. Saulson

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classification 🌀 gr-qc

keywords factorfusedqualitysilicaannealedhighestmeasuredsamples

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We present the results of quality factor measurements for rod samples made of fused silica. To decrease the dissipation we annealed our samples. The highest quality factor that we observed was $Q=(2.03\pm0.01)\times10^8$ for a mode at 384 Hz. This is the highest published value of $Q$ in fused silica measured to date.

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Very high quality factor measured in annealed fused silica

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