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Proceedings Paper

Phase locking of the rotation of a graphene nanoplatelet to an RF electric field in a quadrupole ion trap
Author(s): Joyce E. Coppock; Pavel Nagornykh; Jacob P. J. Murphy; Bruce E. Kane
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Paper Abstract

Particle trapping technologies provide the opportunity to study two-dimensional materials that are fully decoupled from substrates. We investigate the dynamics of a rotating micron-scale graphene particle that is levitated in high vacuum in a quadrupole ion trap and probed via optical scattering. The particle is spun to frequencies ranging from hundreds of kHz to above 50 MHz using a circularly polarized laser. We observe phase locking of particle rotation frequency to an applied RF electric field. The rotation frequency can be adjusted by changing the applied field frequency. We discuss prospects for measurements of particle properties enabled by this technique.

Paper Details

Date Published: 16 September 2016
PDF: 10 pages
Proc. SPIE 9922, Optical Trapping and Optical Micromanipulation XIII, 99220E (16 September 2016); doi: 10.1117/12.2238200
Show Author Affiliations
Joyce E. Coppock, Univ. of Maryland, College Park (United States)
Pavel Nagornykh, Univ. of Maryland, College Park (United States)
Jacob P. J. Murphy, Univ. of Maryland, College Park (United States)
Bruce E. Kane, Univ. of Maryland, College Park (United States)


Published in SPIE Proceedings Vol. 9922:
Optical Trapping and Optical Micromanipulation XIII
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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