  We numerically demonstrate a novel monolayer graphene-based perfect
absorption multi-layer photonic structure by the mechanism of critical coupling
with guided resonance, in which the absorption of graphene can significantly
close to 99% at telecommunication wavelengths. The highly efficient absorption
and spectral selectivity can be obtained with designing structural parameters
in the near infrared ranges. Compared to previous works, we achieve the
complete absorption of single-atomic-layer graphene in the perfect absorber for
the first time, which not only opens up new methods of enhancing the
light-graphene interaction, but also makes for practical applications in
high-performance optoelectronic devices, such as modulators and sensors.
