Effects of defects and disorder on light propagation in one-dimensional photonic band-gap structures

Hong Chen*, Hong Qiang Li, Xin Jie Qiu, Nian Hua Liu, Shi Yao ZHU

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


The light localization due to defects and disorder and its effects on light propagation in one-dimensional (1D) photonic band gap (PBG) structures is studied numerically with transfer matrix method. For a defect layer embedded at the center of a 1D PBG structure, the simulation results indicated that, the photons will be trapped in the defect region. For a disordered 1D PBG structure, a mechanism for extension of the transmission band gap is illustrated with combining the effects of Bragg reflection and Anderson localization. We propose that, analog to disordered semiconductors, there may exist two band gaps in disordered PBG structure: transmission gap and mode-density gap.

Original languageEnglish
Pages (from-to)635-638
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2002
EventMaterials and Devices for optical and Wireless Communications - Shanghai, China
Duration: 15 Oct 200218 Oct 2002

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

User-Defined Keywords

  • Defect
  • Disorder
  • Light Localization
  • Photonic Band Gap
  • Photonic Crystal


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