Refraction and diffraction by a metal-dielectric multilayered structure.
Refraction and diffraction by a metal-dielectric multilayered structure.
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金属电介质多层结构的折射和衍射。
DOI：
10.1364/josaa.25.000903
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
H. Kikuta
中科院分区：
文献类型：
--
作者：
S. Kameda;Y. Ohta;H. Kikuta
提出了一种由金属和介质构成的亚波长周期性多层膜光学折射棱镜。金属和电介质薄膜的多层结构具有用于TM偏振光的圆柱形色散表面。其光行为与传统的玻璃棱镜和光子晶体超棱镜有很大的不同。采用数值模拟和基于色散曲面的图解法研究了光波在金属介质多层棱镜中的折射和衍射。具有0.2微米周期的棱镜对于大约0.8微米波长的光具有0.20度/nm的角色散。有限厚的金属-介质多层结构充当平板波导。
An optical refraction prism consisting of metal and dielectric, subwavelength, periodic multilayered thin films has been proposed. The multilayered structure of metal and dielectric thin films has a cylindrical dispersion surface for TM polarized light. The light behaviors are very different from those of conventional glass prisms and photonic crystal superprisms. Refraction and diffraction of the light wave for the metal-dielectric multilayered prism has been investigated by numerical simulations and graphical representation based on the dispersion surface. A prism with 0.2 microm period had an angular dispersion of 0.20 degrees /nm for approximately 0.8 microm wavelength light. The finite thick metal-dielectric multilayered structure acted as a slab waveguide.