Title :
THz near-field microscopy of graphene nano-ribbon arrays
Author :
Mitrofanov, Oleg ; Thompson, Richard ; Brener, Igal ; Pan, W. ; Yu, Weimin ; Berger, Claire ; de Heer, Walt A. ; Jiang, Z.
Author_Institution :
Electron. & Electr. Eng., Univ. Coll. London, London, UK
Abstract :
We use THz near-field microscopy with broadband THz pulses to image graphene nano-ribbons and to probe surface plasmon excitation and uniformity of graphene response. 3.3nm and 7nm thick graphene layers induce (~10%) absorption from 0.5-2.5THz.
Keywords :
graphene; nanophotonics; nanoribbons; optical materials; optical microscopy; surface plasmons; terahertz spectroscopy; terahertz wave spectra; C; THz near-field microscopy; broadband THz pulses; frequency 0.5 THz to 2.5 THz; graphene layer; graphene nanoribbon arrays; graphene response uniformity; size 3.3 nm; size 7 nm; surface plasmon excitation; Electric fields; Graphene; Microscopy; Optical surface waves; Plasmons; Surface treatment; Surface waves;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
