Muddassar Rashid,Onofrio M. Maragò,Philip H. Jones
出处
期刊:Journal of optics [IOP Publishing] 日期:2009-03-10卷期号:11 (6): 065204-065204被引量:90
标识
DOI:10.1088/1464-4258/11/6/065204
摘要
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.