Optics Express,
Journal Year:
2024,
Volume and Issue:
32(6), P. 10252 - 10252
Published: Feb. 23, 2024
Near-eye
displays
are
widely
recognized
as
a
groundbreaking
technological
advancement
with
the
potential
to
significantly
impact
daily
life.
Within
realm
of
near-eye
displays,
micro-LEDs
have
emerged
highly
promising
technology
owing
their
exceptional
optical
performance,
compact
form
factor,
and
low
power
consumption.
However,
notable
challenge
in
integrating
into
is
efficient
light
collimation
across
wide
spectrum
range.
In
this
paper,
we
propose
what
believe
be
novel
design
broadband
beam
metasurface
for
full-color
by
harnessing
wavefront
phase
modulation
based
on
Huygens'
principle.
Our
results
demonstrate
substantial
reduction
full
width
at
half
maximum
(FWHM)
angles,
achieving
1/10,
1/20
red,
green,
blue
compared
those
without
metasurface,
which
best
result
far
know.
The
central
intensity
increases
24.60,
36.49,
42.15
times.
Furthermore,
significant
enhancement
energy
within
±10°
achieved,
respective
multiplication
factors
14.16,
15.60,
13.00.
This
has
revolutionize
field
enabling
high-performance,
compact,
lightweight
micro-LED
applications
micro-projectors,
beyond.
Chemical Reviews,
Journal Year:
2021,
Volume and Issue:
122(5), P. 5144 - 5164
Published: Aug. 20, 2021
Smart
materials
are
a
kind
of
functional
which
can
sense
and
response
to
environmental
conditions
or
stimuli
from
optical,
electrical,
magnetic
mechanical,
thermal,
chemical
signals,
etc.
Patterning
smart
is
the
key
achieving
large-scale
arrays
devices.
Over
last
decades,
printing
methods
including
inkjet
printing,
template-assisted
3D
extensively
investigated
utilized
in
fabricating
intelligent
micro/nano
devices,
as
strategies
allow
for
constructing
multidimensional
multimaterial
architectures.
Great
strides
printable
opening
new
possibilities
devices
better
serve
human
beings,
such
wearable
sensors,
integrated
optoelectronics,
artificial
neurons,
so
on.
However,
there
still
many
challenges
drawbacks
that
need
be
overcome
order
achieve
controllable
modulation
between
device
performance.
In
this
review,
we
give
an
overview
on
materials,
strategies,
applications
printed
addition,
advantages
actual
practices
materials-based
discussed,
current
limitations
future
opportunities
proposed.
This
review
aims
summarize
recent
progress
provide
reference
novel
well
Chemical Reviews,
Journal Year:
2022,
Volume and Issue:
122(19), P. 15356 - 15413
Published: June 24, 2022
Recent
years
have
witnessed
promising
artificial
intelligence
(AI)
applications
in
many
disciplines,
including
optics,
engineering,
medicine,
economics,
and
education.
In
particular,
the
synergy
of
AI
meta-optics
has
greatly
benefited
both
fields.
Meta-optics
are
advanced
flat
optics
with
novel
functions
light-manipulation
abilities.
The
optical
properties
can
be
engineered
a
unique
design
to
meet
various
demands.
This
review
offers
comprehensive
coverage
synergy.
After
providing
an
overview
meta-optics,
we
categorize
discuss
recent
developments
integrated
by
these
two
topics,
namely
for
AI.
former
describes
how
apply
research
design,
simulation,
information
analysis,
application.
latter
reports
development
Al
system
computation
via
meta-optics.
will
also
provide
in-depth
discussion
challenges
this
interdisciplinary
field
indicate
future
directions.
We
expect
that
inspire
researchers
fields
benefit
next
generation
intelligent
device
design.
Nanophotonics,
Journal Year:
2022,
Volume and Issue:
11(9), P. 1761 - 1781
Published: Jan. 4, 2022
Abstract
Optical
metasurfaces
is
a
rapidly
developing
research
field
driven
by
its
exceptional
applications
for
creating
easy-to-integrate
ultrathin
planar
optical
devices.
The
tight
confinement
of
the
local
electromagnetic
fields
in
resonant
photonic
nanostructures
can
boost
many
effects
and
offer
novel
opportunities
nanoscale
control
light–matter
interactions.
However,
once
structure-only
are
fabricated,
their
functions
will
be
fixed,
which
limits
it
to
make
breakthroughs
practical
applications.
Recently,
persistent
efforts
have
led
functional
multiplexing.
Besides,
dynamic
light
manipulation
based
on
has
been
demonstrated,
providing
footing
ground
arbitrary
full
space-time
dimensions.
Here,
we
review
latest
progress
multifunctional
tunable
metasurfaces.
Firstly,
introduce
evolution
then
present
concepts,
basic
principles,
design
methods
metasurface.
Then
with
more
details,
discuss
how
realize
both
multifunctionality
tunability.
Finally,
also
foresee
various
future
directions
including
innovative
methods,
new
material
platforms,
metadevices.
Opto-Electronic Science,
Journal Year:
2023,
Volume and Issue:
2(8), P. 230025 - 230025
Published: Jan. 1, 2023
Virtual
reality
(VR)
and
augmented
(AR)
are
revolutionizing
our
lives.
Near-eye
displays
crucial
technologies
for
VR
AR.
Despite
the
rapid
advances
in
near-eye
display
technologies,
there
still
challenges
such
as
large
field
of
view,
high
resolution,
image
quality,
natural
free
3D
effect,
compact
form
factor.
Great
efforts
have
been
devoted
to
striking
a
balance
between
visual
performance
device
compactness.
While
traditional
optics
nearing
their
limitations
addressing
these
challenges,
ultra-thin
metasurface
optics,
with
light-modulating
capabilities,
may
present
promising
solution.
In
this
review,
we
first
introduce
AR
displays,
then
briefly
explain
working
principles
metasurfaces,
review
recent
developments
devices
geared
toward
applications,
delved
into
several
advanced
based
on
finally
discuss
about
remaining
future
perspectives
associated
metasurfaces
applications.
Sensors,
Journal Year:
2023,
Volume and Issue:
23(13), P. 5902 - 5902
Published: June 25, 2023
Terahertz
(THz)
waves,
which
fall
between
microwaves
and
infrared
bands,
possess
intriguing
electromagnetic
properties
of
non-ionizing
radiation,
low
photon
energy,
being
highly
sensitive
to
weak
resonances,
non-polar
material
penetrability.
Therefore,
THz
waves
are
extremely
suitable
for
sensing
detecting
chemical,
pharmaceutical,
biological
molecules.
However,
the
relatively
long
wavelength
(30~3000
μm)
compared
size
analytes
(1~100
nm
biomolecules,
<10
μm
microorganisms)
constrains
development
THz-based
sensors.
To
circumvent
this
problem,
metasurface
technology,
by
engineering
subwavelength
periodic
resonators,
has
gained
a
great
deal
attention
enhance
resonance
response
waves.
Those
metasurface-based
sensors
exhibit
high
sensitivity
label-free
sensing,
making
them
appealing
variety
applications
in
security,
medical
applications,
detection.
The
performance
is
controlled
geometric
structure
parameters.
operating
mechanism
divided
into
two
main
categories,
passive
active.
have
profound
understanding
these
metasurface-assisted
technologies,
we
review
categorize
those
sensors,
based
on
their
mechanisms,
including
resonators
frequency
shift
nanogaps
enhanced
field
confinement,
chirality
handedness
detection,
active
elements
(such
as
graphene
MEMS)
advanced
tunable
sensing.
This
comprehensive
can
serve
guideline
future
metasurfaces
design
assist
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(4), P. 2685 - 2707
Published: Jan. 19, 2024
Optical
metasurfaces,
capable
of
manipulating
the
properties
light
with
a
thickness
at
subwavelength
scale,
have
been
subject
extensive
investigation
in
recent
decades.
This
research
has
mainly
driven
by
their
potential
to
overcome
limitations
traditional,
bulky
optical
devices.
However,
most
existing
metasurfaces
are
confined
planar
and
rigid
designs,
functions,
technologies,
which
greatly
impede
evolution
toward
practical
applications
that
often
involve
complex
surfaces.
The
disconnect
between
two-dimensional
(2D)
structures
three-dimensional
(3D)
curved
surfaces
is
becoming
increasingly
pronounced.
In
past
two
decades,
emergence
flexible
electronics
ushered
an
emerging
era
for
metasurfaces.
review
delves
into
this
cutting-edge
field,
focus
on
both
conformal
design
fabrication
techniques.
Initially,
we
reflect
milestones
trajectories
modern
complemented
brief
overview
theoretical
underpinnings
primary
classifications.
We
then
showcase
four
advanced
emphasizing
promising
prospects
relevance
areas
such
as
imaging,
biosensing,
cloaking,
multifunctionality.
Subsequently,
explore
three
key
trends
including
mechanically
reconfigurable
digitally
controlled
Finally,
summarize
our
insights
ongoing
challenges
opportunities
field.
