期刊
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS
卷 11, 期 6, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1464-4258/11/6/065204
关键词
vector beams; non-paraxial beams
类别
资金
- Royal Society
We present the results of calculations of focusing high order cylindrical vector beams in the limit of high numerical aperture. We derive a form of the vectorial diffraction integrals for arbitrary radial and azimuthal mode indices and evaluate these numerically for a number of different modes. We identify combinations of mode indices and lens filling factors that produce focal volume shapes that may be of interest for a number of applications such as optical trapping, two-photon lithography or optical super-resolution. Finally we evaluate the effect of spherical aberration on the focusing.
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