Journal
APPLIED PHYSICS LETTERS
Volume 99, Issue 7, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3625432
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Funding
- Stanford Graduate Fellowship
- NSF GRFP
- AFOSR MURI [FA9550-09-1-0704]
- Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy [DE-AC02-05CH11231]
- National Science Foundation
- Focus Center Research Program
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We present results on electrically driven nanobeam photonic crystal cavities formed out of a lateral p-i-n junction in gallium arsenide. Despite their small conducting dimensions, nanobeams have robust electrical properties with high current densities possible at low drive powers. Much like their two-dimensional counterparts, the nanobeam cavities exhibit bright electroluminescence at room temperature from embedded 1250 nm InAs quantum dots. A small room temperature differential gain is observed in the cavities with minor beam self-heating suggesting that lasing is possible. These results open the door for efficient electrical control of active nanobeam cavities for diverse nanophotonic applications. (C) 2011 American Institute of Physics. [doi:10.1063/1.3625432]
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