A tunable encoder with circular dichroism and polarization encoding function based on a layered metastructure in the GHz range
Materials & Design,
Год журнала:
2025,
Номер
unknown, С. 113636 - 113636
Опубликована: Янв. 1, 2025
Язык: Английский
Polarization-Sensitive Long-Wavelength Infrared Narrowband Thermal Emitter for Anticounterfeiting
ACS Applied Optical Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 3, 2025
Tailoring
the
wavelength,
bandwidth,
directionality,
and
polarization
of
thermal
radiation
is
critical
for
various
applications
like
infrared
camouflage,
radiative
cooling,
gas
sensing.
In
this
work,
we
present
a
deep-subwavelength
bilayer
structure
that
serves
as
long-wavelength
(LWIR)
narrow-band
emitter
with
selectivity.
The
proposed
LWIR
basically
consists
tungsten
oxide
(WO3)
polar
dielectric
layer
upon
an
opaque
gold
(Au)
ground
plane.
Transfer
matrix
method
(TMM)
calculations
are
employed
to
analytically
investigate
optical
responses
emitter.
Leveraging
Berreman
mode
near
longitudinal
(LO)
phonon
energy
WO3,
experimentally
realizes
high
absorption
(97.6%)
TM-polarized
state
low
(4.2%)
TE-polarized
(at
incident
angle
60°
wavelength
10.12
μm),
which
shows
good
agreement
theoretical
results.
Such
excellent
polarization-sensitive
performance
makes
our
very
promising
security
features,
information
encryption,
anticounterfeiting.
Язык: Английский
A novel magnetorheological-polyethylene glycol shear thickening gel based on enhanced gel matrix
Applied Surface Science,
Год журнала:
2024,
Номер
679, С. 161292 - 161292
Опубликована: Сен. 20, 2024
Язык: Английский
High-quality VO2 thin films sputter-deposited on borosilicate glass substrates for modulating solar transmission and thermal emission
Journal of Alloys and Compounds,
Год журнала:
2024,
Номер
unknown, С. 176793 - 176793
Опубликована: Сен. 1, 2024
Язык: Английский
Dual-Mode Stretchable Emitter with Programmable Emissivity and Air Permeability
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(45), С. 63010 - 63018
Опубликована: Ноя. 5, 2024
Materials
with
anisotropic
emission
characteristics
have
attracted
considerable
attention
for
thermal
management.
Although
many
dual-mode
emitters
been
developed
this
purpose
in
the
form
of
textiles,
multilayer
films,
and
photonic
structures,
multiple
functionalities
are
essential
their
versatile
applications.
Herein,
a
highly
stretchable
emitter
programmable
emissivity
air
permeability
is
presented.
The
comprises
planar
Ge2Sb2Te5
(GST)
cavity
on
one
side
perforated
elastomer
substrate
an
infrared-reflecting
metal
layer
other
side.
With
laser-induced
phase
transition
from
amorphous
to
crystalline
GST,
exhibits
large
difference
0.52
between
both
sides.
remains
stable
without
mechanical
failure
after
repeated
stretching
cycles
strain
50%.
This
air-permeable
can
be
attached
any
curved
surface,
including
human
body.
GST-side
programmed
into
arbitrary
pattern
using
spatially
modulated
laser
beam,
ultimately
enabling
printing
mutually
independent
visible
images
single
emitter.
study
provides
promising
structure
multispectral
optical
security
as
well
Язык: Английский