Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Review of Scientific Instruments
61 (1990), S. 1334-1335
ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
Light scattered from a single particle suspended in a quadrupole trap is focused on the detector array in a charged coupled diode (CCD) camera. The video signals obtained from two successive rows of sensors framing the center of the image are compared and the difference used to control a superposed vertical field, holding the particle at trap center. The system is effective for liquid and solid particles in the size range from 1 to 10 μm trapped in vacuum or vapor.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1141185
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