On the possibility of manipulating lightwaves via active electric charges

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• 作者：Chungpin Liao ; Li-Shen Yeh ; Wen-Bing Lai ; Jyun-Lin Huang
• 关键词：Lightwave manipulation by active charges ; Maxwell’s equations ; Discontinuity ; Light–charge interaction
• 刊名：Optical and Quantum Electronics
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：48
• 期：2
• 全文大小：854 KB
• 参考文献：Chen, F.F.: Plasma Physics and Controlled Fusion, 2nd edn. Springer, New York (2006)
  Feynman R., Leighton R. B., Sands M., The Feynman lectures on physics, Addison-Wesley, Boston, MA, USA. Vol. II, Sec. 21 (1971)
  Haus, H., Melcher, J.R.: Electromagnetic Fields and Energy. Prentice Hall, New Jersey (1989)
  Whittaker, E.T.: On an expression of the Electromagnetic Field Due to Electrons by Means of Two Scalar Potential Functions. Proceedings of the London Mathematical Society. 1, 367–372 (1904)CrossRef MATH
  
• 作者单位：Chungpin Liao (1) (2)
  Li-Shen Yeh (2)
  Wen-Bing Lai (1) (2)
  Jyun-Lin Huang (1) (2)
  
  1. Graduate School of Electro-Optic and Materials Science, National Formosa University (NFU), Huwei, 632, Taiwan, ROC
  2. Advanced Research and Business Laboratory (ARBL), Taichung, 407, Taiwan, ROC
  
• 刊物主题：Optics, Optoelectronics, Plasmonics and Optical Devices; Electrical Engineering; Characterization and Evaluation of Materials; Computer Communication Networks;
• 出版者：Springer US
• ISSN：1572-817X

文摘

In a source-free space, i.e., the classical vacuum, transverse-electro-magnetic (TEM) waves are spontaneous normal modes propagating within. Namely, a standard electromagnetic (EM) wave equation, in terms of either the electric or magnetic vector field, can be arrived at by combining Faraday’s and Ampere’s laws of Maxwell’s equations under the source-free condition. This implies that whenever there are electric charges, stationary or moving, the above EM or light waves have to be distorted in form (i.e., becoming driven modes at least), should their presence be still allowable in the now charged space. That is, electric charges may in fact be used to manipulate the formation, topology, transport and refractive manners of EM or light waves. One already well-acquainted example of such lightwave-influencing charges is passively bound charge carriers, or more precisely, the electric dipoles within optical dielectric materials in general. In this theoretical exploration, instead, attempt is aimed at electrically active charges which may be capable of affecting EM refractive properties, or maneuvering lightwaves in favorable ways to be exploited. It is noted that existing electronically-operated spatial light modulators, which mainly function through controlling liquid crystals, are irrelevant to this study.