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 | |
| Publication status | Published - Sep 2000 |
| Externally published | Yes |
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Cite this
Steel, M. J., Levy, M., & Osgood, R. M. (2000). Photonic bandgaps with defects and the enhancement of Faraday rotation. Journal of Lightwave Technology, 18(9), 1297-1308. https://doi.org/10.1109/50.871709