Vector diffraction from subwavelength optical disk structures: Two-dimensional near-field profiles

Wei Chih Liu, Marek W. Kowarz

研究成果: 雜誌貢獻期刊論文同行評審

10 引文 斯高帕斯(Scopus)

摘要

An efficient finite-difference frequency-domain method is developed for calculating electromagnetic fields in the neighborhood of subwavelength dielectric and metallic structures. The method is used to investigate two-dimensional near-field and far-field patterns of a focused beam diffracted from an optical disk, specifically from a DVD (Digital Versatile Disk). It is shown that the polarization of illumination has a significant impact on diffraction patterns as expected and that scalar theory does not provide an accurate-analysis of diffraction from a DVD.

原文英語
頁(從 - 到)191-197
頁數7
期刊Optics Express
2
發行號5
DOIs
出版狀態已發佈 - 1998 三月

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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