Journal
OPTICS EXPRESS
Volume 24, Issue 16, Pages 18727-18738Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.24.018727
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Funding
- US-DOE Office of Science (Office of Basic Energy Sciences) [DE-FG02-07ER46406]
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We report a numerical study, supported by photoemission electron microscopy (PEEM), of sub-micron planar optical antennas on transparent substrate. We find these antennas generate intricate near-field spatial field distributions with odd and even numbers of nodes. We show that the field distributions are primarily superpositions of planar surface plasmon polariton modes confined to the metal/substrate interface. The mode structure provides opportunities for coherent switching and optical control in sub-micron volumes. (C) 2016 Optical Society of America
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