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| Keywords: Loudspeaker (6761906399).jpg JQI researchers think they have discovered a way to amplify faint electrical signals using the motion of a nanomechanical membrane or loudspeaker If shown in experiments the scheme could prove a boon to magnetic resonance imaging and quantum information science This schematic of the proposed device shows its use in detecting--in this example--a signal produced by the quantum-mechanical spin of a group of atoms The atoms generate a faint radiofrequency signal in a coil L which is connected to microscale wires that form an electrical capacitor This vibrates the 'nanomembrane' which in turn affects the resonant frequency of a laser optical cavity The output is light at frequency that is the sum of the original laser frequency plus the signal from the atoms See also http //www nist gov/pml/div684/loudspeaker-012412 cfm www nist gov/pml/div684/loudspeaker-012412 cfm Credit Taylor/NIST Disclaimer Any mention of commercial products within NIST web pages is for information only; it does not imply recommendation or endorsement by NIST Use of NIST Information These World Wide Web pages are provided as a public service by the National Institute of Standards and Technology NIST With the exception of material marked as copyrighted information presented on these pages is considered public information and may be distributed or copied Use of appropriate byline/photo/image credits is requested https //www flickr com/photos/usnistgov/6761906399/ Loudspeaker 2012-01-24 13 30 https //www flickr com/people/63059536 N06 National Institute of Standards and Technology PD-USGov National Institute of Standards and Technology https //flickr com/photos/63059536 N06/6761906399 2016-09-07 02 14 58 United States Government Work Uncategorized 2016 December 20 | ||||
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