The plasmon and distribution effects between incident light and active layer in PtOx-type super-resolution near-field structure

Y.-F. Chau, Din-ping Tsai, L.-F. Shen, T.-J. Yang, Y.-S. Sun

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)


The plasmon and distribution effects of collective localized surface plasmons between incident light and active layer of PtOx-type super resolution near-field structure (super-RENS) have been studied using finite-difference time-domain method. Four types of distribution of Pt nanoparticles, i.e., type A, B, C, and D in active layer are investigated. We find that type C and D in active layer can provide higher field intensity in a wider range of particle size when the particle sizes are varied, and the out-going filed emerging from the active layer exhibit smaller spot size than those of type A and B. Type B, C and D also provide the additional path longer than that of type A, and excite more evanescent field which located in the far edge of the bubble from the optical axis of the incident beam. Results show that the type C structure is the best choice in the view point of designing the PtOx-type super-RENS. This study provides new information to design a super-RENS with superior resolution as well as other applications in nano photonic devices. © 2007 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)1293-1299
Number of pages7
JournalOptics Communications
Issue number5
Publication statusPublished - 1 Mar 2008
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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