Evidence of near-infrared partial photonic bandgap in polymeric rod-connected diamond structures

Lifeng Chen, Mike P C Taverne, Xu Zheng, Jai-De Lin, Ruth Oulton, Martin Lopez Garcia, Daniel Ho, John Rarity

Research output: Contribution to journalArticle (Academic Journal)peer-review

16 Citations (Scopus)
356 Downloads (Pure)

Abstract

We present the simulation, fabrication, and optical characterization of low-index polymeric rod-connected diamond (RCD) structures. Such complex three-dimensional photonic crystal structures are created via direct laser writing by two-photon polymerization. To our knowledge, this is the first measurement at near-infrared wavelengths, showing partial photonic bandgaps for this structure. We characterize structures in transmission and reflection using angular resolved Fourier image spectroscopy to visualize the band structure. Comparison of the numerical simulations of such structures with the experimentally measured data show good agreement for both P- and S-polarizations.
Original languageEnglish
Pages (from-to)26565-26575
Number of pages11
JournalOptics Express
Volume23
Issue number20
Early online date1 Oct 2015
DOIs
Publication statusPublished - 5 Oct 2015

Keywords

  • Photonic crystals
  • Polymers
  • Microstructure fabrication
  • Laser materials processing
  • Nanophotonics and photonic crystals

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