Biss D, Brown T
Opt Express. 2001 Nov 5;9(10):490-7. doi: 10.1364/oe.9.000490.
Cylindrical vector beams have been proposed and demonstrated for applications ranging from microscopy to high energy physics.In this paper,we analyze the three-dimensional field distributions of radial and azimuthal beams focused near a dielectric interface.We give particular attention to the classic problem of high numerical aperture focusing from an immersion lens to a glass-air interface and find that the use of radially and azimuthally polarized illumination for this type of imaging provides an impressive lateral confinement of the fields over a wide range of interface positions.
圆柱矢量光束已被提出并应用于从显微镜到高能物理等广泛领域。在本文中，我们分析了径向和方位向光束在电介质界面附近聚焦时的三维场分布。我们特别关注了从浸没透镜到玻璃 - 空气界面的高数值孔径聚焦这一经典问题，并发现对于此类成像，使用径向和方位向偏振照明可在宽范围的界面位置上实现令人印象深刻的场横向限制。
