Abstract
The influence of the pillar radius on the Q factor of a micropillar cavity is investigated numerically. The relation between Q factor and pillar radius shows an advanced oscillatory behavior which cannot be explained in a 1D model.We propose a multi-mode Fabry-Perot model to quantify the oscillation period observed and we show that the governing mechanism behand the oscillation is coupling to higher-order propagating Bloch modes in the distributed Bragg reflectors. We demonstrate that even though the Q factor is an advanced function involving many oscillating contributions, the model still allows for the determination of a characteristic oscillation period.
| Original language | English |
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| Title of host publication | Conference proceedings, TaCoNa-Photonics |
| Publisher | American Institute of Physics |
| Publication date | 2009 |
| Pages | 115-117 |
| Publication status | Published - 2009 |
| Event | 2nd International workshop on theoretical and computational nanophotonics - Bad Honnef, Germany Duration: 3 Dec 2009 → 5 Dec 2009 Conference number: 2 |
Workshop
| Workshop | 2nd International workshop on theoretical and computational nanophotonics |
|---|---|
| Number | 2 |
| Country/Territory | Germany |
| City | Bad Honnef |
| Period | 03/12/2009 → 05/12/2009 |
Keywords
- Q factor
- Micropillar
- Bloch modes
- resonator
- optical microcavity