Photonic bandgaps with defects and the enhancement of Faraday rotation

M. J. Steel; M. Levy; R. M. Osgood

doi:10.1109/50.871709

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 journal › Article › peer-review

121 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	1297-1308
Number of pages	12
Journal	Journal of Lightwave Technology
Volume	18
Issue number	9
DOIs	https://doi.org/10.1109/50.871709
Publication status	Published - Sep 2000
Externally published	Yes

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abstract = "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.",

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