Nanophotonics,
Journal Year:
2024,
Volume and Issue:
13(4), P. 419 - 441
Published: Feb. 2, 2024
Abstract
Integrated
photonic
devices
and
artificial
intelligence
have
presented
a
significant
opportunity
for
the
advancement
of
optical
computing
in
practical
applications.
Optical
technology
is
unique
system
based
on
functions,
which
significantly
differs
from
traditional
electronic
technology.
On
other
hand,
offers
advantages
such
as
fast
speed,
low
energy
consumption,
high
parallelism.
Yet
there
are
still
challenges
device
integration
portability.
In
burgeoning
development
micro–nano
optics
technology,
especially
deeply
ingrained
concept
metasurface
technique,
it
provides
an
advanced
platform
applications,
including
edge
detection,
image
or
motion
recognition,
logic
computation,
on-chip
computing.
With
aim
providing
comprehensive
introduction
perspective
we
review
recent
research
advances
computing,
nanostructure
methods
to
this
work,
analysis
metasurfaces
engineering
field
look
forward
future
trends
Abstract
Metasurfaces
have
been
continuously
garnering
attention
in
both
scientific
and
industrial
fields,
owing
to
their
unprecedented
wavefront
manipulation
capabilities
using
arranged
subwavelength
artificial
structures.
To
date,
research
has
mainly
focused
on
the
full
control
of
electromagnetic
characteristics,
including
polarization,
phase,
amplitude,
even
frequencies.
Consequently,
versatile
possibilities
wave
achieved,
yielding
practical
optical
components
such
as
metalenses,
beam-steerers,
metaholograms,
sensors.
Current
is
now
integrating
aforementioned
metasurfaces
with
other
standard
(e.g.,
light-emitting
diodes,
charged-coupled
devices,
micro-electro-mechanical
systems,
liquid
crystals,
heaters,
refractive
elements,
planar
waveguides,
fibers,
etc.)
for
commercialization
miniaturization
trends
devices.
Herein,
this
review
describes
classifies
metasurface-integrated
components,
subsequently
discusses
promising
applications
platforms
those
augmented/virtual
reality,
light
detection
ranging,
In
conclusion,
presents
several
challenges
prospects
that
are
prevalent
field
order
accelerate
metasurfaces-integrated
platforms.
ACS Applied Materials & Interfaces,
Journal Year:
2022,
Volume and Issue:
14(31), P. 36019 - 36026
Published: Aug. 1, 2022
The
remarkable
potential
of
metasurface
holography
promises
revolutionary
advancements
for
imaging,
chip-integrated
augmented/virtual
reality
(AR/VR)
technology,
and
flat
optical
displays.
choice
constituent
element
geometry
constrains
many
applications
purveyed
through
polarization-independent
response.
limited
capabilities
degree
freedoms
in
commonly
used
meta-atoms
restrict
the
design
flexibility
to
break
conventional
trade-off
between
polarization-insensitivity
bandwidth.
Here,
we
propose
a
geometric
phase-enabled
novel
strategy
this
trade-off.
proposed
ensures
realization
broad-band
simplified
procedure.
An
identical
output
wavefront
manipulation
is
achieved
by
adjusting
phase
delay
freedom
engineering
under
different
incident
polarization
conditions.
For
proof
concept,
metahologram
device
fabricated
an
optimized
complementary
metal-oxide-semiconductor
(CMOS)-compatible
material
hydrogenated
amorphous
silicon
(a-Si:H).
This
reproduces
required
hologram
with
high
image
fidelity
efficiency
scenarios
white
light
incidence.
Due
simple
strategy,
low
computational
cost,
easy
fabrication,
technique
can
be
excellent
candidate
realizing
polarization-insensitive
devices.
Abstract
Metasurface
holography,
the
reconstruction
of
holographic
images
by
modulating
spatial
amplitude
and
phase
light
using
metasurfaces,
has
emerged
as
a
next‐generation
display
technology.
However,
conventional
fabrication
techniques
used
to
realize
metaholograms
are
limited
their
small
patterning
areas,
high
manufacturing
costs,
low
throughput,
which
hinder
practical
use.
Herein,
efficiency
hologram
one‐step
nanomanufacturing
method
with
titanium
dioxide
nanoparticle‐embedded‐resin,
allowing
for
high‐throughput
low‐cost
is
demonstrated.
At
single
wavelength,
record
theoretical
96.9%
demonstrated
an
experimentally
measured
conversion
90.6%
zero‐order
diffraction
7.3%
producing
ultrahigh‐efficiency,
twin‐image
free
that
can
even
be
directly
observed
under
ambient
conditions.
Moreover,
broadband
meta‐atom
average
76.0%
designed,
metahologram
62.4%
at
visible
wavelengths
from
450
650
nm
Advanced Optical Materials,
Journal Year:
2022,
Volume and Issue:
10(13)
Published: May 1, 2022
Abstract
Symmetric
spin–orbit
interaction
(SOI)‐based
approaches
apply
a
practical
limit
on
helicity
multiplexed
metaoptics,
i.e.,
center
symmetric
information
encoding.
Contrarily,
asymmetric
SOI's
based
the
combination
of
geometric
and
propagation
phase‐delay
can
effectively
address
such
limitations
for
multifunctional
metaoptics
cost
design
complexities.
In
this
paper,
simple
SOI‐based
technique
is
realized
employing
only
single
unit
cell,
breaking
conventional
tradeoff
between
complexity
efficient
transmission
efficiency.
The
approach
depends
phase
alone,
which
eases
fabrication
challenges
decreases
computational
associated
with
previous
metaoptics.
Furthermore,
study
utilizes
new,
low‐cost
CMOS‐compatible
material
to
optimize
proposed
cell
low
loss
high
efficiency
over
complete
visible
domain.
On‐axis
off‐axis
holographic
metasurfaces
are
designed
integrated
pressure‐sensitive
liquid
crystal
cells
demonstrate
actively
tunable
metaholography
no
limitation
technique,
cost‐effective
fabrication,
finger
touch‐enabled
output
switching
make
setup
potential
candidate
many
applications
as
smart
safety
labeling,
motion
or
touch
recognition,
interactive
displays
impact
monitoring
precious
artworks
products.
Advanced Photonics,
Journal Year:
2023,
Volume and Issue:
5(02)
Published: Feb. 22, 2023
Integrated-resonant
units
(IRUs),
associating
various
meta-atoms,
resonant
modes,
and
functionalities
into
one
supercell,
have
been
promising
candidates
for
tailoring
composite
multifunctional
electromagnetic
responses
with
additional
degrees
of
freedom.
metadevices
can
overcome
many
bottlenecks
in
conventional
optical
devices,
such
as
broadband
achromatism,
efficiency
enhancement,
response
selectivity,
continuous
tunability,
offering
great
potential
performant
versatile
application
scenarios.
We
focus
on
the
recent
progress
integrated-resonant
metadevices.
Starting
from
design
principle
IRUs,
a
variety
IRU-based
characteristics
subsequent
practical
applications,
including
achromatic
imaging,
light-field
sensing,
polarization
detection,
orbital
angular
momentum
generation,
metaholography,
nanoprinting,
color
routing,
nonlinear
are
introduced.
Existing
challenges
this
field
opinions
future
research
directions
also
provided.
Photonics Insights,
Journal Year:
2023,
Volume and Issue:
2(1), P. R02 - R02
Published: Jan. 1, 2023
Surface
plasmons
(SPs)
are
electromagnetic
surface
waves
that
propagate
at
the
interface
between
a
conductor
and
dielectric.
Due
to
their
unique
ability
concentrate
light
on
two-dimensional
platforms
produce
very
high
local-field
intensity,
SPs
have
rapidly
fueled
variety
of
fundamental
advances
practical
applications.
In
parallel,
development
metamaterials
metasurfaces
has
revolutionized
design
concepts
traditional
optical
devices,
fostering
exciting
field
meta-optics.
This
review
focuses
recent
progress
meta-optics
inspired
SP
which
implemented
by
careful
subwavelength
structures
arrangement
spatial
distributions.
Devices
general
interest,
including
coupling
on-chip
tailoring
decoupling
as
well
nascent
applications
empowered
sophisticated
usage
meta-optics,
introduced
discussed.
Physical Review Applied,
Journal Year:
2024,
Volume and Issue:
21(4)
Published: April 1, 2024
Recent
advances
in
nonlocal
metasurfaces
have
enabled
unprecedented
success
shaping
the
wave
front
of
light
with
spectral
selectivity,
offering
alternative
solutions
for
many
emerging
nanophotonics
applications.
The
ability
to
tune
both
and
spatial
properties
such
a
class
is
highly
desirable,
but
dynamic
nonvolatile
control
remains
elusive.
Here,
we
demonstrate
active
narrowband
wave-front
manipulation
by
harnessing
quasi-bound
states
continuum
(quasi-BICs)
phase-change
metasurfaces.
proof-of-principle
made
${\mathrm{Sb}}_{2}{\mathrm{S}}_{3}$
allow
nonvolatile,
reversible,
tunable
over
switchable
response
at
given
wavelength
near-infrared
regime.
design
principle
mainly
builds
upon
combination
geometry
phase
quasi-BICs
tunability
meta-atoms
tailor
resonant
wavelengths.
By
tuning
crystallization
level
through
controlling
external
stimuli,
wave-front-shaping
functionalities
beam
steering,
one-dimensional,
two-dimensional
focusing,
holographic
imaging
are
achieved
exclusively
wavelengths,
functionally
transparent
off
resonance.
This
work
represents
critical
advance
towards
developing
an
integrated
metasurface
future
augmented
virtual
reality
wearables.
Microsystems & Nanoengineering,
Journal Year:
2024,
Volume and Issue:
10(1)
Published: Jan. 1, 2024
Abstract
Conventional
photonic
devices
exhibit
static
optical
properties
that
are
design-dependent,
including
the
material’s
refractive
index
and
geometrical
parameters.
However,
they
still
possess
attractive
responses
for
applications
already
exploited
in
across
various
fields.
Hydrogel
photonics
has
emerged
as
a
promising
solution
field
of
active
by
providing
primarily
deformable
geometric
parameters
response
to
external
stimuli.
Over
past
few
years,
studies
have
been
undertaken
attain
stimuli-responsive
with
tunable
properties.
Herein,
we
focus
on
recent
advancements
hydrogel-based
micro/nanofabrication
techniques
hydrogels.
In
particular,
fabrication
hydrogel
categorized
into
film
growth,
photolithography
(PL),
electron-beam
lithography
(EBL),
nanoimprint
(NIL).
Furthermore,
provide
insights
future
directions
prospects
photonics,
along
their
potential
practical
applications.
