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Tunneling rectification in ring shaped nanogaps

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Authors

Kang, Taehee; Kim, R. H. Joon-Yeon; Choi, Geunchang; Lee, Jaiu; Park, Hyunwoo; Jeon, Hyeongtag; Park, Cheol-Hwan; Kim, Dai-Sik

Issue Date
2018
Publisher
International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Citation
International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Abstract
In this work, we show a ring-shaped metallic nanogap exposed to electromagnetic fields to manipulate ultrafast tunneling electrons. Eddy currents induced by incoming terahertz pulses project upon the ring, changing the local potentials in vectorial way. Contour-integrated along the perimeter of the ring, the total tunneling currents are critically dependent upon the ring shape. Furthermore, the spatiotemporal dynamics of the fully rectified terahertz pulses can be visualized by the femtosecond optical pulses.
ISSN
2162-2027
URI
https://hdl.handle.net/10371/202272
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  • College of Natural Sciences
  • Department of Physics and Astronomy
Research Area Condensed Matter Physics, Nanoscale Photonics, Nanoscale Physics, 나노 물리와 나노 광자학, 응집 물질 물리

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