Plasmon Enhanced Terahertz Emission from Single Layer Graphene

• Published in: ACS nano Vol. 8; no. 9; pp. 9089 - 9096
• Main Authors: Bahk, Young-Mi, Ramakrishnan, Gopakumar, Choi, Jongho, Song, Hyelynn, Choi, Geunchang, Kim, Yong Hyup, Ahn, Kwang Jun, Kim, Dai-Sik, Planken, Paul C. M
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 23.09.2014
• Subjects: terahertz spectroscopy; ultrafast photon drag; gold nanostructures; graphene; surface plasmon

We show that surface plasmons, excited with femtosecond laser pulses on continuous or discontinuous gold substrates, strongly enhance the generation and emission of ultrashort, broadband terahertz pulses from single layer graphene. Without surface plasmon excitation, for graphene on glass, ‘nonreson...