Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strong terahertz response in bilayer graphene nanoribbons   We reveal that there exists a class of graphene structures (a sub-class of
bilayer graphene nanoribbons) which has unusually strong optical response in
the terahertz (THz) and far infrared (FIR) regime. The peak conductance of
terahertz/FIR active bilayer ribbons is around two orders of magnitude higher
than the universal conductance of $e^2/4\hbar$ observed in graphene sheets. The
criterion for the terahertz/FIR active sub-class is a bilayer graphene
nanoribbon with one-dimensional massless Dirac Fermion energy dispersion near
the $\Gamma$ point. Our results overcome a significant obstacle that hinders
potential application of graphene in electronics and photonics.

24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph