Abstract
We perform ray and wave simulations of passive and active spiral-shaped optical microcavities, comparing our results to experimental data obtained with mid-infrared quantum cascade spiral microlasers. Focusing on the angular emission characteristics, we find that both ray and wave simulations are consistent with the experimental data, showing richly-featured, multidirectional far-field emission patterns in the case of uniform pumping and TM-polarized light. Active cavity simulations using the Schrödinger-Bloch model indicate that selective pumping of the quantum cascade spiral microlasers near the resonator boundary will yield unidirectional laser emission.
| Original language | English |
|---|---|
| Pages (from-to) | 10335-10343 |
| Number of pages | 9 |
| Journal | Optics Express |
| Volume | 17 |
| Issue number | 12 |
| DOIs | |
| State | Published - 8 Jun 2009 |
| Externally published | Yes |