@article { ISI:000320440800014,
	title = {High-power low-divergence tapered quantum cascade lasers with plasmonic collimators},
	journal = {APPLIED PHYSICS LETTERS},
	volume = {102},
	number = {19},
	year = {2013},
	month = {MAY 13},
	publisher = {AMER INST PHYSICS},
	type = {Article},
	address = {CIRCULATION \& FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA},
	abstract = {We demonstrate a tapered quantum cascade laser with sloped side-walls emitting a high-brightness single-lobe beam at 8.1 mu m with a peak power of 4W at room temperature. Using a combination of high and low reflectivity facet coatings, the power output is increased to 6.2W while a high beam quality is maintained. Plasmonic collimators are fabricated on the facet of the uncoated lasers without compromising power output, demonstrating the viability of this beam-shaping strategy for high-power lasers. The collimated lasers emit a beam with a more circular cross-section, which is more amenable to high-efficiency coupling into mid-infrared optical fibers. (C) 2013 AIP Publishing LLC.},
	issn = {0003-6951},
	doi = {10.1063/1.4806985},
	author = {Blanchard, Romain and Mansuripur, Tobias S. and Goekden, Burc and Nanfang Yu and Mikhail Kats and Patrice Genevet and Fujita, Kazuue and Edamura, Tadataka and Yamanishi, Masamichi and Federico Capasso}
}
