Described in the March 10 issue of Nature, the NIST experiments created strong interactions between microwave light oscillating 7.5 billion times per second and a “micro drum” vibrating at radio frequencies 11 million times per second. Compared to previously reported experiments combining microscopic machines and electromagnetic radiation, the rate of energy exchange in the NIST device — the “coupling” that reflects the strength of the connection — is much stronger, the mechanical vibrations last longer, and the apparatus is much easier to make.
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New electromechanical circuit sets record beating microscopic ‘drum’