Journal
OPTICS EXPRESS
Volume 17, Issue 12, Pages 10335-10343Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.010335
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Funding
- Korean government (MOEHRD) [KRF2006-352-C00022]
- Air Force Office of Scientific Research [FA9550-08-1-0047]
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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 Schrodinger-Bloch model indicate that selective pumping of the quantum cascade spiral microlasers near the resonator boundary will yield unidirectional laser emission. (c) 2009 Optical Society of America
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