Roberts A
School of Physics, The University of Melbourne, Victoria 3010, Australia.
Opt Express. 2010 Feb 1;18(3):2528-33. doi: 10.1364/OE.18.002528.
Transmission of beams through arrays of coaxial apertures in a thick, perfectly conducting screen is investigated using an angular spectrum approach. It is shown that the transfer function of the screen is complex and strongly dependent on the wavelength and polarization of the incident field and the geometric properties of the screen. Examples of changes in the angular spectrum composition of linearly, radially and azimuthally polarized beams as well as near-field intensity patterns are presented and the role played by different resonant transmission mechanisms discussed.
利用角谱方法研究了光束通过厚的理想导电屏中同轴孔阵列的传输。结果表明，屏的传递函数是复数，并且强烈依赖于入射场的波长和偏振以及屏的几何特性。给出了线偏振、径向偏振和方位角偏振光束的角谱组成变化以及近场强度分布的示例，并讨论了不同共振传输机制所起的作用。
