Skip Navigation
NIST Image Gallery [skip navigation] Contact NIST go to A-Z subject index go to NIST homepage Search NIST webspace NIST logo--go to NIST Homepage

NIST Image Gallery

Home | About | Browse | Search

Image Gallery : Image Details
 72 DPI Image 
 150 DPI Image 
 300 DPI Image 
Title: Loudspeaker
Description: 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
Subjects (names):
Type: Graphic/illustration
Source: National Institute of Standards and Technology
Credit Line as it should
appear in print:
Credit: Taylor/NIST
AV Number: 12PML002
Date Created: 2012
Date Entered: 1/24/2012

Home | About | Browse | Search