THz near-field microscopy of graphene structures

Oleg Mitrofanov; Wenlong Yu; Robert J. Thompson; Yuxuan Jiang; Igal Brener; Wei Pan; Claire Berger; Walter A. de Heer; Zhigang Jiang

doi:10.1117/12.2041790

31 January 2014 THz near-field microscopy of graphene structures

Oleg Mitrofanov, Wenlong Yu, Robert J. Thompson, Yuxuan Jiang, Igal Brener, Wei Pan, Claire Berger, Walter A. de Heer, Zhigang Jiang

Author Affiliations +

Proceedings Volume 8993, Quantum Sensing and Nanophotonic Devices XI; 89932A (2014) https://doi.org/10.1117/12.2041790
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

Properties of graphene can be tuned electrically and chemically, providing a promising system for application in terahertz (THz) devices. Graphene response can be enhanced even further by means of coupling electromagnetic waves into plasmon modes, frequency of which is controlled by geometrical parameters. To probe excitation of confined plasmon modes and surface wave excitation, epitaxial graphene and its structures are investigated using THz near-field microscopy. Detected near-field images suggest excitation of THz surface waves occurring at graphene edges, similar to that observed at metallic edges, and excitation of confined plasmon modes. We will also discuss the impact of graphene inhomogeneity on local THz transmission properties on the sub-wavelength scale.

Citation Download Citation

Oleg Mitrofanov, Wenlong Yu, Robert J. Thompson, Yuxuan Jiang, Igal Brener, Wei Pan, Claire Berger, Walter A. de Heer, and Zhigang Jiang "THz near-field microscopy of graphene structures", Proc. SPIE 8993, Quantum Sensing and Nanophotonic Devices XI, 89932A (31 January 2014); https://doi.org/10.1117/12.2041790

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available