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Terahertz Funneling-Induced Quantum Tunneling at Angstrom Scale

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Authors

Kim, Dai-Sik; Bahk, Young-Mi; Kim, Joon-Yeon; Kang, Bong Joo; Kim, Yong Seung; Park, Joohyun; Kim, Won Tae; Kim, Tae Yun; Kang, Taehee; Rhie, Jiyeah; Han, Sanghoon; Jeon, Hyeongtag; Park, Cheol-Hwan; Rotermund, Fabian

Issue Date
2016
Publisher
International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Citation
International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Abstract
We demonstrate electron tunneling-induced colossal nonlinear response of vertically oriented angstrom-metallic gaps by irradiation with intense terahertz pulses. We also investigate the sub-picosecond time evolution of the induced tunneling current extracted from the transmission measurement of light passing through the metallic gap. Our technology of angstrom gap lithography enlarges the boundary of quantum plasmonics down to terahertz frequencies, enabling both linear and nonlinear angstrom optics in a broad spectrum domain. Also, our method has a huge potential of merging the knowledge of conventional dc electronic transport measurements and the study of ultrafast dynamics and nonlinear terahertz spectroscopy.
ISSN
2162-2027
URI
https://hdl.handle.net/10371/202307
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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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