لخّصلي

mechanical systems.Fluorinated graphene; for example, is transparent but also mechanically strong,90,91 so that it could be a good material from which to build high-finesse optome- chanical cavities.92 Other two-dimensional systems of inter- est include h-BN, MoS2, and NbSe2, which are insulating, semiconducting, and metallic, respectively.24,93,94 In general, making mechanical devices out of single atomic layers opens up a wide range of possibilities enabled by the low mass and flexibility of these materials, while different materials will enable tailoring of the optical and electrical properties of the devices.Gra- phene resonators have already proven that they can be manu- factured in large arrays.

mechanical systems. Fluorinated graphene; for example, is
transparent but also mechanically strong,90,91 so that it could
be a good material from which to build high-finesse optome-
chanical cavities.92 Other two-dimensional systems of inter-
est include h-BN, MoS2, and NbSe2, which are insulating,
semiconducting, and metallic, respectively.24,93,94 In general,
making mechanical devices out of single atomic layers opens
up a wide range of possibilities enabled by the low mass and
flexibility of these materials, while different materials will
enable tailoring of the optical and electrical properties of the
devices. As an example, thin NbSe2 resonators have been
used to study the physics of charge density waves at the
nanoscale.95
The field of nanomechanics has been pushing miniaturi-
zation for more than a decade, and with graphene and other
2D materials, it is finally reaching the limits of thinness. Gra-
phene resonators have already proven that they can be manu-
factured in large arrays. They resonate with predictable
frequencies, quality factors in the thousands at room temper-
ature, and good dynamic range; they can also be applied to
basic sensing of mass and force. Now, the challenge is to use
this class of mechanical resonators to enable new applica-
tions and experiments.