标题： 全息图用于高效激发光学表面波 显示英文标题

标题： Holograms for power-efficient excitation of optical surface waves

摘要： 基于全息原理的有效激发光学表面波的方法已被提出。 对于金属上介质层中等离子体波激发的一个具体例子，已分析了介质层中所提出的体全息图的效率，并与介质层中优化的周期光栅进行了比较。 已经发现全息图在某些条件下比光栅效率高得多。 此外，提出了并研究了在两次迭代中记录的全息图。 对于入射高斯光束的所有入射角度，这种全息图比优化的周期光栅要高效得多。 所提出的方法是通用的：它可以扩展用于有效激发不同类型的光学表面波和光学波导模式。 显示英文摘要

摘要： A method for effective excitation of optical surface waves based on holography principles has been proposed. For a particular example of excitation of a plasmonic wave in a dielectric layer on metal the efficiency of proposed volume holograms in the dielectric layer has been analyzed in comparison with optimized periodic gratings in the dielectric layer. Conditions when the holograms are considerably more efficient than the gratings have been found out. In addition, holograms recorded in two iterations have been proposed and studied. Such holograms are substantially more efficient than the optimized periodic gratings for all incidence angles of an exciting Gaussian beam. The proposed method is universal: it can be extended for efficient excitation of different types of optical surface waves and optical waveguide modes.