Photonic band structure: The face-centered-cubic case

作者：Eli Yablonovitch, T. J. Gmitter · 发表于：Physical Review Letters · 年份：1989 · DOI：10.1103/physrevlett.63.1950 · 被引用次数：738 · 研究领域：Photonic Crystals and Applications、Photonic and Optical Devices、Silicon Nanostructures and Photoluminescence

We employ the concepts of band theory to describe the behavior of electromagnetic waves in three dimensionally periodic face-centered-cubic (fcc) dielectric structures. This can produce a ``photonic band gap'' in which optical modes, spontaneous emission, and zero-point fluctuations are all absent. In the course of a broad experimental survey, we have found that most fcc dielectric structures have ``semimetallic'' band structure. Nevertheless, we have identified one particular dielectric ``crystal'' which actually has a ``photonic band gap.'' This dielectric structure, consisting of 86% empty space, requires a refractive index contrast greater than 3 to 1, which happens to be readily obtainable in semiconductor materials.