Chiral Metasurfaces with Decoupled Intensity‐Phase Control for Multifunctional Optical Security and Holographic Displays
Advanced Optical Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 12, 2025
Abstract
Simultaneous
and
independent
control
of
light's
intensity
phase
remains
a
critical
challenge
for
multifunctional
metasurfaces,
as
conventional
designs
suffer
from
inherent
parameter
correlations
orientation‐dependent
limitations.
Here,
minimalist
chiral
metasurface
platform
is
proposed,
achieving
complete
decoupling
modulation
through
paradigm‐shifting
meta‐atom
design.
Each
unit
functions
polarization‐sensitive
optical
rotator,
circumventing
the
orientation
degeneracy
constraints
Malus'
law
while
enabling
arbitrary
Pancharatnam‐Berry
imprinting.
This
unique
mechanism
allows
single‐layer
integration
dual
functionalities:
polarization‐encoded
grayscale
nanoprinting
broadband
wavefront
shaping
(e.g.,
holography
or
vortex
generation).
Experimental
demonstrations
validate
non‐interfering
operation
both
functionalities
within
unified
architecture.
The
design
paradigm
provides
scalable
route
toward
ultra‐compact
devices
augmented
reality
displays
anti‐counterfeiting
applications,
significantly
advancing
frontier
meta‐optics.
Язык: Английский
Vectorial Fluorescence Control with Light‐Emitting Metasurfaces for Unidirectional Emission and Incoherent Holography
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Июнь 2, 2025
Abstract
Ultracompact
light
emission
manipulation
is
crucial
for
various
applications,
including
illumination,
biosensing,
and
quantum
photonics.
Despite
significant
advancements
in
lasing
manipulation,
achieving
complex
vectorial
wavefront
control
over
fluorescence
inherently
challenging
due
to
its
incoherent,
omnidirectional,
unpolarized,
phase‐random
characteristics.
Here,
the
light‐emitting
metasurfaces
(LEMs),
equipped
with
amplitude
encoding
capabilities,
are
introduced
realize
unidirectional
incoherent
photoluminescence
(PL)
holography.
Through
engineering
interaction
between
LEM
guided
PL,
diffraction
angle,
linear
polarization
state,
intensity
of
PL
independently
controlled.
Furthermore,
phase
capability
LEM,
combined
enhanced
spatial
coherence
experimentally
enabled
holography
alongside
polarization‐multiplexed
nanoprinting.
This
versatile
platform
provides
a
simplified
approach
promising
multiple
potential
applications
nanophotonics
devices.
Язык: Английский