Nanophotonics,
Год журнала:
2024,
Номер
13(24), С. 4491 - 4503
Опубликована: Окт. 29, 2024
Structural
colors,
resulting
from
the
interaction
of
light
with
nanostructured
materials
rather
than
pigments,
present
a
promising
avenue
for
diverse
applications
ranging
ink-free
printing
to
optical
anti-counterfeiting.
Achieving
structural
colors
high
purity
and
brightness
over
large
areas
at
low
costs
is
beneficial
many
practical
applications,
but
still
remains
challenge
current
designs.
Here,
we
introduce
novel
approach
realizing
large-scale
in
layered
thin
film
structures
that
are
characterized
by
both
purity.
Unlike
conventional
designs
relying
on
single
Fabry-Pérot
cavity
resonance,
our
method
leverages
coupled
resonance
between
adjacent
cavities
achieve
sharp
intense
transmission
peaks
significantly
suppressed
sideband
intensity.
We
demonstrate
this
designing
experimentally
validating
transmission-type
red,
green,
blue
using
an
Ag/SiO
Laser & Photonics Review,
Год журнала:
2023,
Номер
17(9)
Опубликована: Июнь 29, 2023
Abstract
Due
to
the
limitation
of
nanofabrication
technology,
nanostructured
arrays
and
devices
are
usually
equal
height,
it
is
difficult
change
simultaneously
its
height
in
Z
direction
at
X–Y
regulation.
However,
tunable
as
an
indispensable
part
structural
spatial
freedom
control
very
conducive
functional
expansion
innovation
nanodevices.
Here,
a
grayscale
assembled
fabrication
method
developed
by
combining
e‐beam
lithography
with
atomic
layer
deposition
transfer
wide
range
gradient
nanostructures
can
be
realized
same
array
then
applied
high‐quality
images.
Following
this
strategy,
ultra‐realistic
relief‐nanostructured
images
256
levels
demonstrated,
consisting
height‐varying
nanopillars
100
nm
pixel
size
6.4×10
10
dpi
resolution.
Especially,
multi‐dimensional
color
based
on
metasurfaces
C4
symmetric
pixels
designed
prepared
regulation
nanofabrication,
enabling
strong
ability
hue,
saturation,
brightness
display
single
1.5
µm
size.
The
as‐developed
nanoconfigurations
open
new
approach
for
multidimensionally
regulations,
showing
great
potential
not
only
high‐resolution
imaging
but
also
more
advancednanophotonic
devices.
Nanoscale,
Год журнала:
2024,
Номер
16(8), С. 4289 - 4298
Опубликована: Янв. 1, 2024
Multi-stage
MHM
nanocavities
with
configurably
swellable
hydrogel
interlayers
are
achieved
through
high-resolution
electron-beam
exposure,
resulting
in
structural-color-based
imaging
concealment/encryption
driven
by
humidity
change.
Applied Physics Letters,
Год журнала:
2025,
Номер
126(7)
Опубликована: Фев. 17, 2025
Nanostructure-based
metasurfaces
provide
a
promising
route
for
arbitrarily
manipulating
light
waves,
especially
versatile
absorption.
Although
various
meta-absorbers
have
been
studied
perfect
absorption,
it
remains
challenge
to
achieve
high-contrast
polarization-dependent
absorption
with
dynamic
tunability.
Here,
dual-metal
hybrid
metasurface
is
demonstrated
polarization-selective
and
reflection
liquid
tuning
capabilities
in
the
infrared
band.
Based
on
metal–insulator–metal
architecture,
composed
of
Al/Ti
nanostrips
enables
an
intense
resonance
at
x-polarization
reflects
as
mirror
y-polarization,
thus
acting
high-performance
linear
polarizer.
The
peak
wavelength
can
be
continuously
tailored
from
1200
1850
nm
average
>
99%
by
scaling
unit-cell
period
metasurfaces.
Furthermore,
exhibits
large
range
switch
(>750
nm)
through
immersion
tuning,
its
above
99.5%.
proposed
liquid-tunable
promote
practical
technologies
polarizers,
photodetectors,
optical
imaging.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 27, 2025
Abstract
Optical
cryptography
leveraging
responsive
photonics
harbors
immense
potential
within
encryption
markets.
Nonetheless,
the
current
reliance
on
single
inherent
information
encryption/decryption
methods
hinders
advancements
in
achieving
high‐precision
and
multistage
data
security,
particularly
for
military‐grade
encryption.
Here,
a
water‐triggered
decryption
approach
visible
regime
is
proposed,
exploiting
precise
dynamic
regulation
of
quasi‐bound
states
continuum
(q‐BIC)
hydrogel
metagratings.
By
exploring
thermal
interactions
between
scanning
probe
hydrogels,
direct
one‐step
grayscale
patterning
hydrogels
has
been
realized,
allowing
flexible
design
delicate
1D
1.5D
Utilizing
mechanism,
sensitive
q‐BIC
resonance
can
be
switched
among
ON,
OFF,
intermediate
depending
humidity
levels,
thus
facilitating
optical
through
properties
hydrogels.
Finally,
Morse
code
designed
achieved
by
arranging
metagratings,
which
concealed
under
water
immersion.
During
process
(from
high
to
low
humidity),
active
shifting
camouflaged
enhance
security.
The
strategy,
along
with
patterning,
offers
promising
platform
encryption,
security
labels,
displays,
anti‐counterfeiting
measures.
Chemical Society Reviews,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
This
review
focuses
on
stimuli-responsive
material
(SRM)-based
data
protection,
emphasizing
the
integration
of
intricate
logic
and
algorithms
in
SRM-constructed
hardware.
It
also
discusses
current
challenges
future
directions
field.
ACS Applied Materials & Interfaces,
Год журнала:
2023,
Номер
15(38), С. 45239 - 45248
Опубликована: Сен. 13, 2023
Humidity-responsive
materials
offer
a
promising
approach
to
achieving
tunable
metasurface
systems
due
their
fast
and
reversible
swelling
responses
moisture,
which
enables
many
important
applications,
such
as
real-time
humidity
sensing,
optical
switches,
dynamic
displays,
information
encryption.
However,
the
humidity-responsive
structural
coloration
generally
cannot
provide
high
spatial
resolution
requires
complex
patterning
process.
Here,
we
present
scalable
moisture-driven
color-changing
Fabry–Pérot
(FP)-like
cavity
composed
of
polyvinyl
alcohol
layer
sandwiched
between
an
upper
gold
nanoparticles
assembly
bottom
mirror.
Through
nanoparticle
contact
printing,
pixelated
these
cavities
with
sub-micrometer
sizes
without
crosstalk
achieved
ultrahigh
display
∼400
nm.
Meanwhile,
nanoparticle-based
FP
(NBFP)
exhibit
more
vibrant
colors
than
those
conventional
film-based
ones
broadband
absorption
disordered
assembly.
Moreover,
NBFP
rapid
response
(<300
ms),
benefiting
from
membrane
pores
formed
in
gaps
adjacent
nanoparticles.
Finally,
demonstrated
applications
anti-counterfeiting
multi-color
printing.
These
results
suggest
that
our
will
help
realize
colorful,
fast,
ultrahigh-resolution
device
security
colorimetric
sensing.
Micromachines,
Год журнала:
2023,
Номер
14(10), С. 1824 - 1824
Опубликована: Сен. 24, 2023
Hydrogel,
a
material
with
outstanding
biocompatibility
and
shape
deformation
ability,
has
recently
become
hot
topic
for
researchers
studying
innovative
functional
materials
due
to
the
growth
of
new
biomedicine.
Due
their
stimulus
responsiveness
external
environments,
hydrogels
have
progressively
evolved
into
“smart”
responsive
(such
as
pH,
light,
electricity,
magnetism,
temperature,
humidity)
in
recent
years.
The
physical
chemical
properties
been
used
construct
hydrogel
micro-nano
robots
which
demonstrated
significant
promise
biomedical
applications.
different
mechanisms
are
initially
discussed
this
study;
after
which,
number
preparation
techniques
variety
structural
designs
introduced.
This
study
also
highlights
most
developments
robots’
biological
applications,
such
drug
delivery,
stem
cell
treatment,
cargo
manipulation.
On
basis
current
state
development,
difficulties
potential
future
paths
identified.
ACS Applied Nano Materials,
Год журнала:
2024,
Номер
7(3), С. 3479 - 3487
Опубликована: Янв. 23, 2024
Self-assembly
of
metal–organic
frameworks
(MOFs)
to
construct
optical
sensors
has
been
proposed
detect
chemicals
by
acclimating
colors
in
response
analytes
that
adsorbed
on
the
surface
MOF
nanoparticles
and
interspaces
between
particles.
However,
instability
weakly
assembled
structures
held
together
van
der
Waals
forces
limits
their
active
sensing
application.
Here,
we
propose
full-color
tunable
superstructures
are
constructed
self-assembled
ZIF-8
postsynthetic
poly(dimethylsiloxane)
(PDMS)
coating,
which
behave
as
robust
sensors.
The
band
was
tuned
controlling
size
particles
also
responded
adsorption
with
different
refractive
indexes
micropores
In
addition,
PDMS-coated
(ZIF-8@PDMS)
were
fabricated
thermal
evaporation
optimize
quality
improve
robustness
solvent
resistance
during
chemical
sensing.
Static
dynamic
results
showed
hierarchical
porous
endow
ZIF-8@PDMS
superstructure
higher
saturation
faster
comparison
counterparts
configured
a
superstructure.
