Open AccessStudy of 3D optical chain with highly focused vector beam
Author(s) -
Yanli Zhang,
Yingjie Zhao,
Qiwen Zhan,
Yongping Li
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.1253
Subject(s) - optical tweezers , focus (optics) , optics , polarization (electrochemistry) , lens (geology) , numerical aperture , beam (structure) , aperture (computer memory) , physics , chain (unit) , optical axis , wavelength , chemistry , astronomy , acoustics
We present a design of diffractive optical element to produce 3D optical chain along optical axis near the focus of a high numerical aperture (NA) lens by spatially modulating the phase of incoming vector beam. This optical chain can trap multiple individual particles in three dimensions at different planes near the focus. For flexibly controlling this special optical trapping system, we systematically analize the factors affecting the characteristics of the optical chain, such as different incoming vector polarization of light, the NA of the lens, and the structure of the DOE.