Abstract
Optical antennas convert propagating far-field radiation into localized near-fields [1]. Perhaps the simplest optical antenna is a sharp metal tip, which is commonly utilized in near-field microscopy and spectroscopy [1,2]. Usually, the coupling of far-field light to the near-field requires either a field polarized along the tip axis (longitudinal field) [2] or a surface grating on the tip [3]. Here, we demonstrate that efficient transformation of incident far-field radiation to localized energy at the cone apex can be achieved using nanocones with wings oriented perpendicular to the tip axis [4].
Original language | English |
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DOIs | |
Publication status | Published - 2013 |
Publication type | Not Eligible |
Event | 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013 - Munich, Germany Duration: 12 May 2013 → 16 May 2013 |
Conference
Conference | 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013 |
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Country/Territory | Germany |
City | Munich |
Period | 12/05/13 → 16/05/13 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering