Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Photothermal responsivity of van der Waals material-based nanomechanical
  resonators   Nanomechanical resonators made from van der Waals materials (vdW NMRs)
provide a new tool for sensing absorbed laser power. The photothermal response
of vdW NMRs, quantified from the resonant frequency shifts induced by optical
absorption, is enhanced when incorporated in a Fabry-Perot (FP) interferometer.
Along with the enhancement comes the dependence of the photothermal response on
NMR displacement, which lacks investigation. Here, we address the knowledge gap
by studying electromotively driven niobium diselenide drumheads fabricated on
highly reflective substrates. We use a FP-mediated absorptive heating model to
explain the measured variations of the photothermal response. The model
predicts a higher magnitude and tuning range of photothermal responses on
few-layer and monolayer NbSe$_{2}$ drumheads, which outperform other clamped
vdW drum-type NMRs at a laser wavelength of $532\,$nm. Further analysis of the
model shows that both the magnitude and tuning range of NbSe$_{2}$ drumheads
scale with thickness, establishing a displacement-based framework for building
bolometers using FP-mediated vdW NMRs.

28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci