12″ Wafer-Scale Mass-Manufactured Metal–Insulator–Metal Reflective Metaholograms by Nanotransfer Printing
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 3, 2025
The
unique
characteristics
of
metasurfaces
to
precisely
control
the
amplitude,
phase,
and
polarization
light
within
a
thin,
flat
footprint
make
them
promising
replacement
for
bulky
optical
components.
However,
fabrication
methods
conventional
have
suffered
from
low
throughput
high
costs,
limiting
scalability
practical
application.
To
address
these
challenges,
an
advanced
technique
is
developed
by
combining
deep-ultraviolet
argon
fluoride
photolithography
with
wafer-scale
nanotransfer
printing
facilitate
scalable
metal-insulator-metal
structures.
This
approach
not
only
facilitates
production
numerous
reflective
metaholograms
yield
70.6%
on
8
inch
wafers
but
also
significantly
reduces
costs
under
one
dollar
per
unit,
improving
economic
feasibility.
Hundreds
each
millimeter
scale
been
fabricated
operate
across
visible
near-infrared
range,
showing
conversion
efficiencies
43.6%
at
635
nm,
40%
940
2.2%
532
nm.
result
opens
new
avenues
widespread
adoption
metasurface
technologies
in
imaging,
sensing,
communications.
By
enabling
scalable,
cost-effective
production,
our
method
poised
opening
possibilities
technology.
Язык: Английский
On-Chip Cascaded Metasurfaces for Visible Wavelength Division Multiplexing and Color-Routing Meta-Display
Nano Letters,
Год журнала:
2025,
Номер
25(6), С. 2452 - 2458
Опубликована: Янв. 30, 2025
Integrating
metasurfaces
on-chip
offers
a
promising
strategy
for
modulating
and
extracting
guided
waves,
suggesting
tremendous
applications
in
compact
wearable
devices.
However,
despite
the
full
acquisition
of
manipulation
optical
parameters,
including
phase,
amplitude,
polarization,
functionality
remains
limited
by
lack
wavelength
selectivity.
Here,
an
approach
to
differentiate
components
is
proposed
visible
regime
division
multiplexing
(WDM).
Through
horizontally
cascading
meta-atoms
with
structural
dimension
variation
optimization,
different
propagating
along
waveguide
would
be
selectively
extracted,
realizing
meta-demultiplexing
functionality.
More
intriguingly,
color
nanoprinting
images
or
holographic
displays
can
correspondingly
enabled.
This
surpasses
conventional
free-space
meta-devices
terms
exhibiting
improved
wavelength-selective
allocation
eliminating
energy
waste
caused
spatial
multiplexing.
We
envision
that
such
paves
way
next-generation
WDM
devices
photonic
integrated
circuits
miniature
meta-displays.
Язык: Английский
Dual-metal hybrid metasurface for liquid-tunable infrared polarization-selective perfect absorption
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.
Язык: Английский
Multidimensional‐Encrypted Meta‐Optics Storage Empowered by Diffraction‐Order Decoupling
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 9, 2025
Recent
advancements
in
multidimensional
multiplexing
have
paved
the
way
for
meta-optics
encryption
to
be
a
viable
solution
next-generation
information
storage
and
security.
However,
challenges
persist
increasing
simultaneously
modulated
dimensions
while
minimizing
structural
complexity.
Here,
novel
single-cell
order-decoupling
method
is
proposed
realization
of
encrypted
system.
By
analyzing
mathematic
relationships
between
phases
different
diffraction
orders,
detour
phase
structure
optimized
achieve
independent
encoding
freedom
multiple
orders.
The
successfully
realize
concurrent
modulation
four
optical
dimensions:
i)
Wavelength,
ii)
Wavevector
Direction,
iii)
Polarization,
iv)
Diffraction
Order.
system
achieves
up
sixteen-channel
meta-holograms
with
low
crosstalk
exponentially
raises
threshold
brute-force
decoding
thus
remarkably
enhances
security
storage.
It
envisioned
that
on-chip
metasurface-based
strategy
augmented
reality
display
functionalities
presents
promising
applications
encryption/storage,
anti-counterfeiting,
multifunctional
photonics
integrated
circuits.
Язык: Английский
Dynamic BIC in Customizable Hydrogel Metagratings for Advanced Information Security
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.
Язык: Английский
Large‐Area Floating Display with Wafer‐Scale Manufactured Metalens Arrays
Laser & Photonics Review,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 5, 2024
Abstract
Metasurface‐based
flat
optics
has
a
great
potential
to
replace
conventional
bulky
and
heavy
optical
elements,
consistent
with
the
trend
of
miniaturizing
elements.
One
trends
is
broaden
operating
area
metasurface.
The
previous
approaches
are
focused
on
expanding
metasurface
area,
which
intrinsic
manufacturing
limitations.
Here,
this
work
presents
fabrication
wafer‐scale
metalens
arrays,
demonstrates
Gabor
superlens
composed
behaves
optically
like
large
lens
system.
A
pair
fabricated
8‐inch‐sized
arrays
used
float
large‐area
display,
producing
real
image
in
air.
This
easily
manufactured
high‐throughput
cost‐effective
manner
using
an
argon
fluoride
dry
scanner
single
reticle.
Their
capability
for
diffraction‐limited
focusing
imaging
demonstrated.
Considering
groundbreaking
nature
display
through
shows
scaling
up
systems
simple
manner.
Язык: Английский
Highly Reversible Tuning of Light‐Matter Interactions in Van der Waals Materials Coupled with Hydrogel‐Assisted Optical Cavity
Laser & Photonics Review,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 19, 2024
Abstract
Controlling
light‐matter
interactions
via
cavity
systems
manifested
by
Rabi
splitting
is
paramount
important
for
nanophotonics.
However,
achieving
conveniently
accessible
and
active
tuning
of
remains
a
formidable
challenge.
Traditional
approaches
often
necessitate
either
sophisticated
design
or
meticulous
nanofabrication
to
address
this
issue.
Here,
handy
strategy
experimentally
demonstrated
build
an
adjustable
coupling
system
featuring
reversibly
modulated
responses
based
on
dielectric‐hydrogel‐metal
resonators.
By
controlling
the
top
tungsten
disulfide
layer
thickness,
flexible
manipulation
weak‐intermediate‐strong
transitions
in
exciton‐cavity
revealed
large‐scale
hydrogel
membrane
without
nanopositioning
lithography.
Crucially,
leveraging
inflation
sensitivity
hydrogel,
strength
can
be
tailored
with
excellent
reproducibility
modulating
resonator's
dry/immersed
states.
The
combined
merits
captivating
daily
stimulus
render
novel
hydrogel‐based
nanocavities
as
groundbreaking
step
toward
development
practical
integrated
optical
devices,
such
polariton
lasing,
switches,
sensors.
Язык: Английский