%0 Journal Article %J APPLIED PHYSICS LETTERS %D 2013 %T Single-mode tapered quantum cascade lasers %A Rauter, Patrick %A Menzel, Stefan %A Gokden, B. %A Goyal, Anish K. %A Wang, Christine A. %A Sanchez, Antonio %A Turner, George %A Federico Capasso %X We demonstrate tapered quantum cascade lasers monolithically integrated with a distributed Bragg reflector acting as both a wavelength-selective back mirror and a transverse mode filter. Each of the 14 devices operates at a different wavelength between 9.2 and 9.7 mu m, where nine devices feature single-mode operation at peak powers between 0.3 and 1.6W at room temperature. High output power and excellent beam quality with peak brightness values up to 1.6 MW cm(-2) sr(-1) render these two-terminal devices highly suitable for stand-off spectroscopy applications. (C) 2013 AIP Publishing LLC. %B APPLIED PHYSICS LETTERS %I AMER INST PHYSICS %C 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA %V 102 %8 MAY 6 %G eng %N 18 %9 Article %R 10.1063/1.4804261