RSS Alerts
Intensity distribution of a point source

Related Links

Related Stories

  • Why are your bones not made of steel?
    In science it sometimes pays to ask silly questions. So let me ask, “Why are your bones not made of steel?”
  • Magnetricity is taken for a spin
    At long last there is experimental evidence that magnetic charges exist and that they have measurable currents or magnetricity, just like an electric charge [Bramwell et al., Nature (2009) 461, 956].
  • A hard X-ray interferometer
    A novel type of hard X-ray interferometer employing a bilens system with two parallel arrays of compound refractive lenses has been developed by scientists from France and Russia. Under coherent illumination, the bilens generates two diffraction limited mutually coherent beams. When the beams overlap they produce an interference pattern with a fringe spacing ranging from tens of nanometres to tens of micrometres.
  • Daisies result from magnetic attraction
    The assembly of complex structures out of simple colloidal building blocks is of practical interest for building materials with unique optical properties (for example photonic crystals and DNA biosensors) and is of fundamental importance in improving our understanding of self-assembly processes occurring on molecular to macroscopic length scales.
  • Nanofabrication by self-assembly
    The self-assembly paradigm in chemistry, physics and biology has matured scientifically over the past two-decades to a point of sophistication that one can begin to exploit its numerous attributes in nanofabrication. In what follows we will take a brief look at current thinking about self-assembly and with some recent examples taken from our own work examine how nanofabrication has benefited from self-assembly.

Feature

Electromagnetic wave in 2D photonic crystals

12 January 2010
Xiangdong Zhang

In this article, we have reviewed recent progresses on the negative refraction and the abnormal transmission of electromagnetic wave in two-dimensional photonic crystals. The physical mechanisms related to these phenomena have been analyzed, and the focusing properties of the point source through the photonic-crystal-based flat lens have been discussed.

Recent investigations on the abnormal transmission and Zitterbewegung effect of wave transport near the Dirac point in two-dimensional photonic crystals have also been introduced.

To view the full paper, please follow the link to the right.

 

This article is featured in:
Electronic materials • Energy • Magnetic materials

 

Comment on this article

You must be registered and logged in to leave a comment about this article.

Copyright © 2010
Elsevier Ltd. All rights reserved.
Terms & Conditions | Privacy | Website Design Working with water