Hybrid-effect transmission enhancement induced by oblique illumination in nano-ridge waveguide

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

*Corresponding author for this work

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

In a nano-ridge waveguide under oblique illumination, we demonstrated transmission enhancement resulting from a hybrid effect between propagation modes and surface plasmon wave. The measured near-field intensity with 44-degree illumination was 1.6 times higher than that illuminated with normal incident light. Consequently, a wedge-shaped fiber probe was proposed to serve as a compact near-field light source.

Original languageEnglish
Pages (from-to)11741-11749
Number of pages9
JournalOptics Express
Volume15
Issue number18
DOIs
StatePublished - 9 Sep 2007

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