Abstract
We demonstrate that an antenna can be used to realize a near-field optical probe that combines spatial resolution well below the diffraction limit with transmission efficiency approaching unity. The probe consists of a planar bow-tie antenna with an open-circuited gap at its apex. We present proof-of-principle measurements using microwave radiation and discuss scaling the antenna to the visible optical spectrum.
Keywords
OpticsAntenna (radio)PhysicsMicrowaveAntenna measurementPlanarRadiation patternTelecommunicationsComputer science
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Publication Info
- Year
- 1997
- Type
- article
- Volume
- 70
- Issue
- 11
- Pages
- 1354-1356
- Citations
- 312
- Access
- Closed
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Cite This
Robert D. Grober,
Robert Schoelkopf,
D. E. Prober
(1997).
Optical antenna: Towards a unity efficiency near-field optical probe.
Applied Physics Letters
, 70
(11)
, 1354-1356.
https://doi.org/10.1063/1.118577
Identifiers
- DOI
- 10.1063/1.118577