NSF Nanoscale Science and Engineering Center-NSEC, 3112 Etcheverry Hall, University of California, Berkeley, CA 94720, USA.
Nanoscale. 2012 Sep 7;4(17):5277-92. doi: 10.1039/c2nr31140b. Epub 2012 Jul 31.
Within the past a few years, transformation optics has emerged as a new research area, since it provides a general methodology and design tool for manipulating electromagnetic waves in a prescribed manner. Using transformation optics, researchers have demonstrated a host of striking phenomena and devices; many of which were only thought possible in science fiction. In this paper, we review the most recent advances in transformation optics. We focus on the theory, design, fabrication and characterization of transformation devices such as the carpet cloak, "Janus" lens and plasmonic cloak at optical frequencies, which allow routing light at the nanoscale. We also provide an outlook of the challenges and future directions in this fascinating area of transformation optics.
在过去的几年中，变换光学作为一个新的研究领域出现了，因为它为以规定的方式操纵电磁波提供了一种通用的方法和设计工具。利用变换光学，研究人员已经展示了许多引人注目的现象和器件；其中许多在科幻小说中才被认为是可能的。在本文中，我们回顾了变换光学的最新进展。我们专注于理论、设计、制造和光学频率变换器件的特性，如地毯斗篷、“双面神”透镜和等离子体斗篷，它们可以在纳米尺度上引导光。我们还展望了这个迷人的变换光学领域的挑战和未来方向。
