Physics – Optics
Scientific paper
2010-03-05
Physics
Optics
17 pages, 6 figures
Scientific paper
Transformation optics has recently attracted extensive interest, since it provides a novel design methodology for manipulating light at will. Although transformation optics in principle embraces all forms of electromagnetic phenomena on all length scales, so far, much less efforts have been devoted to near-field optical waves, such as surface plasmon polaritons (SPPs). Due to the tight confinement and strong field enhancement, SPPs are widely used for various purposes at the subwavelength scale. Taking advantage of transformation optics, here we demonstrate that the confinement as well as propagation of SPPs can be managed in a prescribed manner by careful control of the dielectric material properties adjacent to a metal. Since the metal properties are completely unaltered, it provides a straightforward way for practical realizations. We show that our approach can assist to tightly bound SPPs over a broad wavelength band at uneven and curved surfaces, where SPPs would normally suffer significant scattering losses. In addition, a plasmonic waveguide bend and a plasmonic Luneburg lens with practical designs are proposed. It is expected that merging the unprecedented design flexibility based on transformation optics with the unique optical properties of surface modes will lead to a host of fascinating near-field optical phenomena and devices.
Bartal Guy
Liu Yongmin
Zentgraf Thomas
Zhang Xiang
No associations
LandOfFree
Transformational Plasmon Optics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Transformational Plasmon Optics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transformational Plasmon Optics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-688032