Advanced Physical Layer Metasurface‐Empowered Cryptography with Robustness, High Capacity, and Enhanced Security
Laser & Photonics Review,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 13, 2025
Abstract
Physical
layer
metasurface‐empowered
cryptography
offers
a
novel
approach
to
secure
encryption.
This
study
proposes
an
encryption
method
with
robustness,
high
capacity,
and
enhanced
security
based
on
the
dual‐band
complex‐amplitude
metasurface.
By
leveraging
American
Standard
Code
for
Information
Interchange
(ASCII),
both
secret
message
compressed
digital
signature
are
encrypted
transmitted
together,
eliminating
codebook
transmission
reducing
risks.
The
modified
Visual
Secret
Sharing
(VSS)
scheme
is
employed
strengthen
security,
fidelity,
robustness.
Additionally,
three‐dimensional
wavefront
reconstruction
algorithm
used
increase
multivariate
key
provides
extra
of
protection.
A
prototype
metasurface
sample
designed,
fabricated,
characterized
as
proof‐of‐concept
demonstration.
measured
results
closely
match
numerical
ones
design
objective,
confirming
viability
resilience
this
high‐capacity,
applications
in
anti‐counterfeiting
data
transmission.
Язык: Английский
Bioinspired Hierarchical Photonic Structures with Controllable Polarization and Color for Optical-Multiplexed Information Encryption
ACS Nano,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 6, 2025
Optical
multiplexing
technologies,
which
integrate
multiple
optical
channels
based
on
photonic
structures,
offer
a
significant
solution
for
high-capacity
information
storage
and
advanced
encryption.
However,
these
materials
are
limited
by
their
inherent
unswitchable
chiral
result
in
restricted
control
over
the
spatial
distribution
of
light.
Here,
we
propose
to
construct
an
integrating
optical-multiplexed
structure
using
tunable
1D
crystals
orientation
texture
via
combined
self-assembly
shear-aligning
approach.
In
this
system,
created
diverse
ethyl
cellulose
(EC)
offers
wide
range
light
modulations
through
phase
retardation.
When
with
chromatic
layer
formed
EC,
wavelength
polarization
achieved.
Notably,
due
identical
components
modulation
crystal
layers,
traceless
interface
between
them
ensures
both
high
confidentiality
durability.
By
leveraging
hierarchical
slices
well-defined
states
structural
colors
created,
enabling
construction
platform
multiplexed
multichannel
3D
4D
This
study
presents
promising
strategy
develop
traceless,
highly
confidential
units
controllable
color
encryption
technologies.
Язык: Английский
Broadband Rapid Polarization Manipulation and Imaging Based on Pancharatnam‐Berry Optical Elements
Qi Zhang,
Yingjie Shang,
Siyuan Qiao
и другие.
Laser & Photonics Review,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 28, 2024
Abstract
Polarization
imaging,
which
can
reveal
indiscernible
information
that
cannot
easily
be
detected
with
traditional
intensity
cameras,
plays
a
crucial
role
in
many
research
fields.
There
are
two
main
types
of
polarization
imaging
methods:
time‐division
multiplexed
and
space‐division
imaging.
These
methods
confront
the
problems
temporal
spatial
resolution
reduction.
In
this
work,
rapid
linear‐polarization
arbitrary
manipulation
technique
based
on
Pancharatnam–Berry
Optical
Elements
is
proposed
achieved
as
an
module
speed
up
to
899
Hz.
Applying
compact
modulator
optical
or
microscopic
systems
establish
rapid,
high‐resolution
system.
This
method
verified
at
detection,
indoor
outdoor
photographic
experiments,
visible
near‐infrared
bands,
exhibiting
excellent
results.
It
proven
valid
approach
solve
major
dilemma
incompatibility
between
it
also
highlights
potential
multidimensional
applications.
Язык: Английский
Enhanced Reconfigurable Visual Cryptography Strategies Utilizing Optical Metasurfaces
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 6, 2025
The
secure
storage
and
transmission
of
information
are
core
measures
that
ensure
data
security.
Within
intricate
landscapes,
reconfigurable
encryption
mechanisms
serve
as
robust
defenses
against
potential
breaches
encrypted
data.
Here,
we
propose
a
visual
secret
sharing
(VSS)
strategy
leverages
the
capabilities
optical
metasurfaces
exhibits
dual-channel
secondary
scheme.
This
method
employs
three
shared
keys
(SKs)
hidden
in
near-field
spin-decoupled
far-field
channels
metasurface
to
perform
initial
encryption,
enabling
decryption
two
distinct
information.
Subsequently,
leveraging
clues
from
process,
SKs
channels,
conjunction
with
corresponding
codebook,
can
achieve
encryption.
As
proof
concept,
conduct
experiments
decrypt
first-time
is
reconfigurable.
enhanced
not
only
improves
security
parallel
capacity
but
also
offers
repetitive
dynamic
without
updating
hardware.
Язык: Английский
Holographically marked metasurface towards multi-user authentication
Optics and Lasers in Engineering,
Год журнала:
2025,
Номер
186, С. 108836 - 108836
Опубликована: Фев. 19, 2025
Язык: Английский
Cascaded Janus Meta-Optics: Generalized Platform for Bidirectional Asymmetric Modulation of Light
ACS Photonics,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 10, 2025
Язык: Английский
Full-dimensional complex coherence properties tomography for multi-cipher information security
Opto-Electronic Advances,
Год журнала:
2025,
Номер
0(0), С. 240278 - 240278
Опубликована: Янв. 1, 2025
Язык: Английский
Photoaligned Twisted Nematic Liquid Crystal Elements for Multi-channel Polarization and Electro-Optical Encryption
Journal of Molecular Liquids,
Год журнала:
2025,
Номер
unknown, С. 127752 - 127752
Опубликована: Май 1, 2025
Язык: Английский
Robust Carbon‐Dot Optical Disks for Orthogonal Amplitude‐Polarization Encryption Storage
Laser & Photonics Review,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 18, 2024
Abstract
High‐capacity
steganography
is
crucial
for
the
secure
exchange
of
massive
information.
Exploring
orthogonally
optical
recording
can
significantly
improve
encryption
levels.
However,
due
to
lack
robust
media,
hidden
data
are
easy
be
cracked
or
destructed.
Herein,
carbon
dots
have
switchable
memory
function
between
transmittance
and
polarization
state
after
receiving
excitation
power
adjustment
discovered.
A
large‐area
carbon‐based
disk
further
constructed
which
measured
resist
high‐temperature
damage
at
423
K
more
than
405
h
estimated
remain
stable
room‐temperature
(301
K)
beyond
2341
years.
With
alternated
arrangement
dual
functional
one
region
disk,
only
by
using
an
amplitude‐type
holographic
diffraction
key
polarized
pattern
correctly
read
out.
The
ultra‐high
strategy
also
puts
a
bright
way
applications
3D
image
hiding,
permanent
preservation,
anti‐counterfeiting
labels.
Язык: Английский
Ultra‐High Secure Holographically Steganographic Array with Spatiotemporal Dual‐Encryption Keys
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 29, 2024
Abstract
Independently‐manipulated
optical
encryption
has
attracted
great
attention
due
to
its
high
security
and
multiple
application
scenarios.
Although
photochromic
molecules
have
become
preferred
holographic
display
units,
the
integration
of
dynamic
modulation
both
in
hologram
fluorescence
for
orthogonal
is
still
challenged.
Herein,
a
latticed
holographically
steganographic
array
constructed
by
incorporating
plasticizer
(tri‐o‐cresyl
phosphate,
TOCP)
into
spirooxazine
(SO)
based
polymers,
thereby
modulating
isomerization
rate
UV‐fluorescence
kinetics
between
SO
merocyanine
(MC).
The
period
reach
saturated
value
each
information
bit
device
can
be
widely
modulated
60
1700
s.
Based
on
property,
only
through
ultraviolet
stimulation
gradually
converted
from
spatial
lattice
coordinates
time.
Then,
hidden
3D
image
determined
rapidly
updatable
reconstructed
video
with
refresh
1.125
Hz
above
spatiotemporal
dual‐encryption
keys.
This
work
provides
bright
path
ultra‐high
safety
steganography
adaptive
stereoscopic
imaging.
Язык: Английский