Details

Autor(en) / Beteiligte

• Kim, Joon-Yeon
• Kang, Bong Joo
• Park, Joohyun
• Bahk, Young-Mi
• Kim, Won Tae
• Rhie, Jiyeah
• Jeon, Hyeongtag
• Rotermund, Fabian
• Kim, Dai-Sik

Titel

Terahertz Quantum Plasmonics of Nanoslot Antennas in Nonlinear Regime

Ist Teil von

• Nano letters, 2015-10, Vol.15 (10), p.6683-6688

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Quantum tunneling in plasmonic nanostructures has presented an interesting aspect of incorporating quantum mechanics into classical optics. However, the study has been limited to the subnanometer gap regime. Here, we newly extend quantum plasmonics to gap widths well over 1 nm by taking advantage of the low-frequency terahertz regime. Enhanced electric fields of up to 5 V/nm induce tunneling of electrons in different arrays of ring-shaped nanoslot antennas of gap widths from 1.5 to 10 nm, which lead to a significant nonlinear transmission decrease. These observations are consistent with theoretical calculations considering terahertz-funneling-induced electron tunneling across the gap.