Journal
OPTICS LETTERS
Volume 36, Issue 13, Pages 2530-2532Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.36.002530
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- Natural Sciences and Engineering Research Council of Canada (NSERC)
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We investigate the radiation rate of a dipole in close proximity to a hyperbolic metamaterial and confirm that both the radiation rate and its fraction directed into the metamaterial are greatly increased compared to bulk dielectric or metal. However, we find that the homogenized effective-medium approach greatly overestimates the Purcell factor compared to metal-dielectric subwavelength multilayers with previously reported layer thicknesses. (C) 2011 Optical Society of America
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