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Driving plasmonic nanoantennas with triangular lasers and slot waveguides |
Applied Optics, Vol. 50, Issue 16, pp. 2391-2400 (2011)
http://dx.doi.org/10.1364/AO.50.002391
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Abstract
Plasmonic nanoantennas can generate high-intensity electric fields in a very small area. However, being passive devices, they need to be excited by external laser sources. The excitation of nanoantennas by semiconductor lasers can be inefficient and a significant amount of light may return back to the laser source after being scattered by the nanoantenna. In this paper, it is shown that the amount of light being returned to the semiconductor laser can be reduced by using dielectric slot waveguides. These waveguides can transport the incident light to the nanoantennas, but the amount of nondirectional back-scattered light is reduced after propagation through the slot waveguide.
© 2011 Optical Society of America
OCIS Codes
(130.0130) Integrated optics : Integrated optics
(140.5960) Lasers and laser optics : Semiconductor lasers
(240.6680) Optics at surfaces : Surface plasmons
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: November 22, 2010
Revised Manuscript: March 19, 2011
Manuscript Accepted: March 21, 2011
Published: May 24, 2011
Citation
Haroldo T. Hattori, Ziyuan Li, and Danyu Liu, "Driving plasmonic nanoantennas with triangular lasers and slot waveguides," Appl. Opt. 50, 2391-2400 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-16-2391
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