Terahertz near-field imaging of surface plasmon waves in graphene structures

O. Mitrofanov (1) , W. Yu (2) , R J Thompson , Yuchao Jiang (3) , Z. J Greenberg , J. Palmer , I. Brener (4) , W. Pan , Claire Berger (5) , W.A. de Heer (6) , Z. Jiang (7)

1 DEEE - Department of Electrical and Electronic Engineering [London]
2 National University of Defense Technology [China]
3 Institute of Atomic Physics
4 Center for Integrated Nanotechnologies
5 NEEL - QuantECA - Circuits électroniques quantiques Alpes
6 School of Physics
7 UCLA - University of California [Los Angeles]

We introduce a near-field scanning probe terahertz (THz) microscopy technique for probing surface plasmon waves on graphene. Based on THz time-domain spectroscopy method, this near-field imaging approach is well suited for studying the excitation and evolution of THz plasmon waves on graphene as well as for mapping of graphene properties at THz frequencies on the sub-wavelength scale.

Mots clés: E THz near-field microscopy; Surface plasmons; Epitaxial graphene

Domaines: Systèmes mésoscopiques et effet Hall quantique [cond-mat.mes-hall]

O. Mitrofanov, W. Yu, R J Thompson, Yuchao Jiang, Z. J Greenberg, et al.. Terahertz near-field imaging of surface plasmon waves in graphene structures. Solid State Communications, 2015, 224, pp.47 - 52. ⟨10.1016/j.ssc.2015.08.013⟩. ⟨hal-01784084⟩