Transmission, reflection, and absorption spectroscopy of graphene microribbons in the terahertz region
Both transmission and reflection spectra were obtained from graphene microribbons on a SiC substrate, which resonantly coupled with terahertz light through plasmon excitation. An absorption spectrum was also derived from the transmission and reflection spectra. Absorption by the confined intraband p...
Saved in:
Published in | Japanese Journal of Applied Physics Vol. 55; no. 6S1; pp. 6 - 06GF08 |
---|---|
Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
The Japan Society of Applied Physics
01.06.2016
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Both transmission and reflection spectra were obtained from graphene microribbons on a SiC substrate, which resonantly coupled with terahertz light through plasmon excitation. An absorption spectrum was also derived from the transmission and reflection spectra. Absorption by the confined intraband plasmons reached 5-10%/layer, which is considerably larger than the wavelength-independent interband absorption of 2.3%/layer. The absorption was found to be larger when the microribbons/substrate sample was illuminated from the back surface than from the ribbon surface because of an interference effect at the surface. |
---|---|
Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0021-4922 1347-4065 |
DOI: | 10.7567/JJAP.55.06GF08 |