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Highly Directional Emission of Photons from Nanocrystal Quantum Dots Positioned on Circular Plasmonic Lens Antennas

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We show enhanced directional emission from nanocrystal quantum dots positioned at the center of a circular plasmonic lens. A collimation with a divergence of only ∼ 4° FWHM is achieved, a spectrally broad bandwidth.

© 2014 Optical Society of America

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