A planar dielectric antenna for directional single-photon emission and near-unity collection efficiencyopen access
- Authors
- Lee, Kwang Geol; Chen, Xue Wen; Eghlidi, Hadi; Kukura, Philipp; Lettow, Robert; Renn, Alois; Sandoghdar, Vahid; Götzinger, Stephan
- Issue Date
- Mar-2011
- Publisher
- NATURE PUBLISHING GROUP
- Citation
- NATURE PHOTONICS, v.5, no.3, pp.166 - 169
- Indexed
- SCIE
SCOPUS
- Journal Title
- NATURE PHOTONICS
- Volume
- 5
- Number
- 3
- Start Page
- 166
- End Page
- 169
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/151318
- DOI
- 10.1038/NPHOTON.2010.312
- ISSN
- 1749-4885
- Abstract
- Single emitters have been considered as sources of single photons in various contexts, including cryptography, quantum computation, spectroscopy and metrology(1-3). The success of these applications will crucially rely on the efficient directional emission of photons into well-defined modes. To accomplish high efficiency, researchers have investigated microcavities at cryogenic temperatures(4,5), photonic nanowires(6,7) and near-field coupling to metallic nano-antennas(8-10). However, despite impressive progress, the existing realizations substantially fall short of unity collection efficiency. Here, we report on a theoretical and experimental study of a dielectric planar antenna, which uses a layered structure to tailor the angular emission of a single oriented molecule. We demonstrate a collection efficiency of 96% using a microscope objective at room temperature and obtain record detection rates of similar to 50 MHz. Our scheme is wavelength-insensitive and can be readily extended to other solid-state emitters such as colour centres(11,12) and semiconductor quantum dots(13,14).
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