Direct wide-angle measurement of photonic band-structure in a three-dimensional photonic crystal using infrared fourier imaging spectroscopy

Lifeng Chen, Martin Lopez-Garcia, Mike Taverne, Xu Zheng, Daniel Ho, John Rarity

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

11 Citations (Scopus)
337 Downloads (Pure)

Abstract

We propose a method to directly visualize the photonic band-structure of micrometer-sized photonic crystals using wide-angle spectroscopy. By extending Fourier imaging spectroscopy sensitivity into the infrared range, we have obtained accurate measurements of the band structures along the high-symmetry directions (X-W-K-L-U) of polymeric three-dimensional, rod-connected diamond photonic crystals. Our implementation also allows us to record single wavelength reflectance far-field patterns showing very good agreement with simulations of the same designs. This technique is suitable for the characterization of photonic structures working in the infrared and, in particular, to obtain band-structure information of complete photonic band gap materials.
Original languageEnglish
Pages (from-to)1584-1587
Number of pages4
JournalOptics Letters
Volume42
Issue number8
Early online date24 Mar 2017
DOIs
Publication statusPublished - 11 Apr 2017

Structured keywords

  • Bristol Quantum Information Institute

Keywords

  • Microstructure fabrication
  • Spectroscopy
  • Infrared
  • Laser materials processing
  • Nanophotonics and photonic crystals

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