Abstract
We investigate the transmission of short pulses through one-dimensional impurity band based photonic crystals. We found a strong dependence of the delay time on the angle of incidence. The delay time is larger for larger incident angles for the transverse electrical mode, while the delay time of the transverse magnetic mode has a qualitatively different angular dependence, especially in the region below the Brewster angle. The strong anisotropy of the delay time is traced to the anisotropy of the group velocity which is directly related to the angular dependence of the impurity band structure.
| Original language | English |
|---|---|
| Pages (from-to) | 118-122 |
| Number of pages | 5 |
| Journal | Journal of Optics A: Pure and Applied Optics |
| Volume | 7 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2005 |
| Externally published | Yes |
Keywords
- Impurity band
- Optical delay lines
- Photonic crystal
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