Wideband, polarization-insensitive rectangular-shaped with thin wire MXene-based resonator solar absorber for solar energy harvesting application
International Journal of Thermal Sciences,
Год журнала:
2024,
Номер
204, С. 109249 - 109249
Опубликована: Июль 8, 2024
Язык: Английский
Realization of terahertz polarization conversion and wideband absorption device based on vanadium dioxide phase transition control
Applied Physics A,
Год журнала:
2025,
Номер
131(4)
Опубликована: Март 17, 2025
Язык: Английский
Optimization of highly sensitive three-layer photonic crystal fiber sensor based on plasmonic
Physica Scripta,
Год журнала:
2024,
Номер
99(10), С. 105577 - 105577
Опубликована: Сен. 30, 2024
Abstract
In
this
work,
a
photonic
crystal
fiber
(PCF)
refractive
index
(RI)
sensor
has
been
designed
and
optimized.
The
RIs
range
covered
by
the
is
from
1.38
to
1.41.
proposed
optical
three
layers
of
air
holes
with
24,
12
6
in
each
layer.
geometry
parameters
(the
radius
thickness
plasmonic
layer)
have
optimized
using
Nelder-Mead
algorithm
FEM
numerical
objective
achieving
highest
sensitivity.
To
achieve
an
structure
minimal
sensitivity
fabrication
errors,
rotation
angle
hole
analyzed.
results
indicate
that,
due
specific
structure,
variations
displacement
no
significant
impact
on
outcomes.
also
that
sensor’s
maximum
amplitude
(AS),
wavelength
(WS),
figure
merit
(FOM)
are
10000
(RIU
−1
),
23000
(nm/RIU)
131
)
respectively.
design
provides
high
sensitivity,
wide
diagnostic
for
detection
analytes’
RIs,
advantages
gold
layer,
ensuring
stability
biological
environments.
This
combination
enhanced
performance
various
applications
particularly
biosensing
medical
fields.
structural
eliminates
effects
tolerances
manufacturing
processes
which
makes
PCF
device
very
efficient
sensor.
Язык: Английский
Enhanced SWIR Absorption in PMMA‐Coated TiN‐Based Metamaterial
Macromolecular Symposia,
Год журнала:
2024,
Номер
413(5)
Опубликована: Окт. 1, 2024
Abstract
Achieving
highly
efficient
absorption
in
the
short
wavelength
infrared
(SWIR)
spectral
region
is
crucial
for
advancing
numerous
technologies.
SWIR
enhances
energy
harvesting
solar
cells,
improves
sensitivity
of
sensors,
and
enables
precise
control
thermal
radiative
properties
emission
devices.
These
advancements
are
essential
applications
such
as
imaging,
night
vision,
thermophotovoltaic
systems.
The
study
presents
a
simple,
cost‐effective
design
polymer‐coated
multilayer
perfect
absorber
(MPA)
metamaterial
optimized
region.
proposed
MPA
structure
composed
four
distinct
layers:
top
layer
made
polymethyl
methacrylate
(PMMA)
polymer,
second
featuring
arrays
circular
titanium
nitride
(TiN)
disks,
dielectric
middle
consisting
pure
zinc
oxide
(ZnO)
film,
bottom
metallic
formed
by
thin
film
TiN.
results
demonstrate
that
achieves
near‐perfect
absorption,
with
remarkable
99%
efficiency
centered
at
1.3
µm.
further
investigated
respect
to
various
structural
parameters
ensure
better
performance
absorber.
absorbers
hold
great
promise
sensing,
emission,
related
fields.
Язык: Английский
Broadband polarization-insensitive terahertz absorber based on Ta2O5 snowflake-like structure
Physica Scripta,
Год журнала:
2024,
Номер
99(12), С. 125547 - 125547
Опубликована: Ноя. 11, 2024
Abstract
In
this
paper,
an
ultra-broadband
tantalum
pentoxide
(Ta
2
O
5
)
all-dielectric
metamaterial
absorber
is
proposed
from
the
far-infrared
to
terahertz
range,
which
exhibits
polarization-insensitive
and
wide-angle
characteristics.
The
consistently
demonstrates
impressive
absorption
rate
exceeding
90%
within
frequency
range
1.1
THz
20
THz.
Such
can
have
a
bandwidth
relative
ratio
of
18.9
179.15%.
We
employ
equivalent
circuit
model
simulate
performance
using
transmission
line
theory,
facilitates
near-perfect
by
finely
tuning
geometrical
parameters
structure
match
input
impedance
with
that
free
space.
Detailed
calculations
analyses
electric
magnetic
field
distributions,
as
well
power
loss
density,
are
presented
clarifying
underlying
mechanisms
absorption.
design
inherently
provides
insensitivity
polarization
angles
sustains
superior
efficiency
at
substantial
incidence
angles.
An
exhaustive
exploration
influence
structural
variations
on
has
been
conducted.
Looking
ahead,
be
potential
application
in
enhanced
imaging,
communication
systems,
novel
energy
harvesting
solutions
broad
scientific
research
endeavours.
Язык: Английский
Enhanced Short Wavelength Infrared Absorption in Tri-Layer Metamaterials through Polymer Coating
Prabha Materials Science Letters,
Год журнала:
2024,
Номер
4(1), С. 57 - 65
Опубликована: Ноя. 27, 2024
A
highly
efficient
absorption
in
the
short
wavelength
infrared
(SWIR)
spectral
region
is
essential
for
advancement
of
technologies
energy
harvesting,
detection,
and
thermal
emission.
This
study
presents
a
polymer-coated
multilayer
perfect
absorber
metamaterial
(MPA)
with
enhanced
performance
SWIR
range.
The
MPA
structure
comprises
four
layers:
Polymethyl
Methacrylate
(PMMA)
polymer
top
layer,
an
array
circular
Titanium
Nitride
(TiN)
disks
as
second
thin
film
Zinc
Oxide
(ZnO)
dielectric
middle
bottom
metallic
layer.
Our
findings
demonstrate
that
this
achieves
near-perfect
99%
at
1.3
µm.
characteristics
are
further
investigated
respect
to
various
structural
parameters
ensure
better
absorber.
holds
great
potential
applications
absorption,
sensing,
emission,
related
fields.
Язык: Английский