arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0801.3161cond-mat.mtrl-sci
收藏

光束在有限尺寸光子晶体和超材料中的传输

Beam propagation in finite size photonic crystals and metamaterials

B. Guizal, D. Felbacq, R. Smaâli

摘要:

近年来,人们对光子晶体(超透镜、超棱镜、光学海市蜃楼等)成像的可能性产生了浓厚的兴趣。需要对有限周期结构内的光束传播进行详细分析。本文回答了“光束从何处出射?”的给出。众所周知,光束的位移并不总是由色散曲线的法线给出。这一现象解释的倏逝波和重整化图,给出了正确的方向。

英文摘要:

The recent interest in the imaging possibilities of photonic crystals (superlensing, superprism, optical mirages etc...) call for a detailed analysis of beam propagation inside a finite periodic structure. In this paper, an answer to the question "where does the beam emerge?" is given. Contrarily to common knowledge, it is not always true that the shift of a beam is given by the normal to the dispersion curve. This phenomenon is explained in terms of evanescent waves and a renormalized diagram that gives the correct direction is given.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑