Mode structure of planar optical antennas on dielectric substrates
- Portland State Univ., Portland, OR (United States)
Here, 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.
- Research Organization:
- Portland State Univ., Portland, OR (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- FG02-07ER46406
- OSTI ID:
- 1434898
- Journal Information:
- Optics Express, Vol. 24, Issue 16; ISSN 1094-4087
- Publisher:
- Optical Society of America (OSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 9 works
Citation information provided by
Web of Science
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