Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 18, 2025
Abstract
Simple,
single-output
(zero-order)
gas
sensors
have
established
applications
for
industrial
and
residential
safety.
However,
in
detection
of
low
levels
analyte
gases
diverse
chemical
backgrounds,
zero-order
often
poor
performance,
cancelling
out
their
small
size
low-cost
advantages
over
traditional
analytical
instruments.
Thus,
with
one
two
independent
variables
(first-
second-order
sensors)
are
under
development
to
meet
contemporary
monitoring
needs
environmental,
industrial,
medical,
homeland
security
applications.
Here,
we
show
three
designs
photonic
nanostructured
as
In
all
designs,
the
first
variable
sensor
response
is
optical
wavelength
across
visible
spectral
range.
The
second
either
(i)
illumination
angle,
(ii)
light
polarization,
or
(iii)
operation
temperature
sensor.
These
illustrative
bring
mathematical
understanding
boost
multi-gas
resolution
achieved
by
individual
material-based
through
transducer,
material
design,
appropriate
excitation
conditions,
data
analytics.
Results
presented
this
report
should
inspire
new
fundamental
research
technological
innovations
areas
sensors,
optics,
materials
science,
nanofabrication,
strategic
approach
expanding
dimensionality
described
study
will
enable
next
generation
perform
on
par
orthogonal-output
instruments,
but
a
continuous
real-time
stream
unobtrusive,
energy-efficient
designs.
