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Title: Yoctonewton
Description: The NIST force sensor is a crystal of ions (charged atoms) trapped inside the upper region of the copper cylinder. A laser beam directed upward through the trap cools the ions. A force is applied in the form of oscillating electric field, and a detector (not shown) measures the light reflected off the ions.

Physics

See also http://www.nist.gov/pml/div688/yocto_083110.cfm.
Subjects (names):
Topics/Categories: Time & Frequency--Atomic Clocks
Type: Photo/Color
Source: National Institute of Standards and Technology
Credit Line as it should
appear in print:
Credit: Bollinger/NIST
AV Number: 10PHY030
Date Created: 2010
Date Entered: 8/31/2010

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