Double-corrugated C-shaped aperture for near-field recording

Yu Chieh Chen*, Jen Yu Fang, Chung-Hao Tien, Han Ping D Shieh

*Corresponding author for this work

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

We applied surface corrugations surrounding the C-aperture on both incident and exit interfaces of the metal film, which can generate surface plasmon (SP) waves coupling to the propagation mode and function as a focusing grating, respectively. Compared with a 60 nm square aperture, the double-corrugated C-aperture can enhance power throughput by five orders of magnitude and reduce spot area by 30%.

Original languageEnglish
Pages (from-to)1348-1350
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume45
Issue number2 B
DOIs
StatePublished - 24 Feb 2006

Keywords

  • C-aperture
  • Coupling effect
  • Focusing grating
  • Propagation mode
  • Surface corrugation
  • Surface plasmon

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