@article { ISI:000266906400087,
	title = {Angular emission characteristics of quantum cascade spiral microlasers},
	journal = {OPTICS EXPRESS},
	volume = {17},
	number = {12},
	year = {2009},
	month = {JUN 8},
	pages = {10335-10343},
	publisher = {OPTICAL SOC AMER},
	type = {Article},
	address = {2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA},
	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 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},
	issn = {1094-4087},
	doi = {10.1364/OE.17.010335},
	author = {Hentschel, Martina and Kwon, Tae-Yoon and Belkin, Mikhail A. and Audet, Ross and Federico Capasso}
}
