Recently, graphene has been extensively researched in fundamental science and
engineering fields and has been developed for various electronic applications in emerging …

Graphene has long been predicted to show exceptional nonlinear optical properties,
especially in the technologically important terahertz (THz) frequency range. Recent …

Terahertz radiation has uses in applications ranging from security to medicine. However,
sensitive room-temperature detection of terahertz radiation is notoriously difficult. The hot …

The conversion of light into free electron–hole pairs constitutes the key process in the fields
of photodetection and photovoltaics. The efficiency of this process depends on the …

Graphene is an attractive material for use in optical detectors because it absorbs light from
mid-infrared to ultraviolet wavelengths with nearly equal strength. Graphene is particularly …

Since graphene has no band gap, photoluminescence is not expected from relaxed charge
carriers. We have, however, observed significant light emission from graphene under …

Nonradiative decay of surface plasmons (SPs) is usually considered an unwanted process.
However, recent studies have proven that hot carriers generated from nonradiative SP …

One of the exceptional properties of graphene is its extremely high thermal conductivity,
which makes graphene a promising material in thermal engineering. The superlative …

Collective excitations of coupled electron-phonon systems are calculated for both monolayer
and bilayer graphenes, taking into account the nonperturbative Coulomb coupling between …

Abstract Two-dimensional (2D) materials represented by graphene show numerous
attractive electronic, optical, mechanical, and thermal properties. Especially, the …