Hamam Rafif E, Ibanescu Mihai, Johnson Steven G, Joannopoulos J D, Soljacić Marin
Center for Materials Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Opt Express. 2009 May 11;17(10):8109-18. doi: 10.1364/oe.17.008109.
We propose a two dimensional (2D) photonic crystal (PhC) structure that supports super-collimation over a large frequency range (over 4 times that of a traditional square lattice of holes). We theoretically and numerically investigate the collimation mechanism in our 2D structure, in comparison to that of two other frequently used related PhC structures. We also point out the potential importance of our proposed structure in the design of super-collimation-based devices for both monochromatic and polychromatic light.
我们提出了一种二维（2D）光子晶体（PhC）结构，该结构在大频率范围内（超过传统方形孔晶格的4倍）支持超准直。与其他两种常用的相关PhC结构相比，我们从理论和数值上研究了二维结构中的准直机制。我们还指出了我们提出的结构在设计基于超准直的单色和多色光器件方面的潜在重要性。
