Antireflection coating for quantum-well Bragg structures

Zhenshan Yang, J. E. Sipe, N. H. Kwong, R. Binder, Arthur L. Smirl

Research output: Contribution to journalArticlepeer-review


We develop a strategy to reduce large reflection losses from quantum-well Bragg structures through an anti-reflection coating technique. It is based on generalized refractive indices, which we call "effective coupling indices" (ECIs), that can be introduced to describe the coupling of light into quantum-well Bragg structures. For the example of a spectrally narrow band, which is relevant for slow-light applications, we clarify the dependence of the ECIs on the spectral bandwidth and discuss the relation between the ECIs and the group-velocity index. Numerical simulations of reflection spectra demonstrate the effectiveness of the ECI concept.

Original languageEnglish (US)
Pages (from-to)2013-2022
Number of pages10
JournalJournal of the Optical Society of America B: Optical Physics
Issue number8
StatePublished - Aug 2007

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics


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