Photonic bandgaps with defects and the enhancement of Faraday rotation

M. J. Steel*, M. Levy, R. M. Osgood

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

127 Citations (Scopus)


We investigate enhancement of magnetooptical rotation in periodic magnetic garnet thin-film stacks with defects using a combination of coupled-mode theory and matrix calculations. We prove that a combination of high rotation per unit length and high output is unattainable for a symmetric grating with a single central defect. We demonstrate that the addition of a second defect introduces sufficient degrees of freedom to allow high transmission for a much larger range of rotation angles than was previously possible. We present a number of designs with emphasis on achieving 45° rotation in very short propagation lengths.

Original languageEnglish
Pages (from-to)1297-1308
Number of pages12
JournalJournal of Lightwave Technology
Issue number9
Publication statusPublished - Sept 2000
Externally publishedYes


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