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The glass microresonator (blue) combines the world's best properties of optics and mechanics. On the one hand it stores photons which can circulate around its outer rim for hundreds of thousand times before leaving it again. The eventually emerging photons allow extremely accurate measurements of the mechanical oscillations of the resonator. The optimized support of the glass structure via four nano-spokes strongly decouples its mechanical oscillations from the environment. Excited mechanical modes can thus oscillate up to 80'000 times before decaying.
Source: MPQ
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The Science Year 2025 of the Federal Ministry of Education and Research (Bundesministerium für Bildung [...]
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