Applied Optics,
Journal Year:
2024,
Volume and Issue:
63(31), P. 8288 - 8288
Published: Oct. 21, 2024
A
challenge
in
optic
fiber
is
to
control
dispersion
over
the
entire
low-loss
bands
covering
O
+
E
S
C
L
with
integratable
ultracompact
devices,
which
inevitably
limits
range
of
fiber-based
applications.
Metalens
supplies
a
dynamic
platform
for
correcting
chromatic
aberration
optical
devices
flexible,
integratable,
and
way.
Hence,
we
propose
broadband
achromatic
metalens
integrated
on
end
face
single-mode
wavelength
region.
Utilizing
particle
swarm
optimization
algorithm,
have
substantially
mitigated
phase-compensated
matching
error
scheme.
It
demonstrates
that
achievable
focuses
band
high
mean
focusing
efficiency
84.55%.
Furthermore,
this
device
exhibits
remarkable
capability
break
through
diffraction
limit
output
field.
This
work
provides
theoretical
basis
fiber-integrated
bands,
has
promising
applications
imaging,
sensing,
communication.
Nano Letters,
Journal Year:
2024,
Volume and Issue:
24(46), P. 14641 - 14647
Published: Nov. 6, 2024
The
visualization
of
transparent
specimens
in
traditional
light
microscopy
is
impeded
by
insufficient
intrinsic
contrast,
prompting
the
development
advanced
contrast-enhancement
methodologies
to
transmute
minute
phase
discrepancies
into
detectable
amplitude
alterations.
While
existing
methods
excel
either
phase-contrast
imaging
(contrast-enhanced
image
whole
objects)
or
relief-like
(deceptive
three-dimensional
images),
it
would
be
great
significance
seamlessly
integrate
both
capabilities
same
device.
Here,
we
propose
a
novel
metasurface-assisted
half-side
technique
capable
simultaneous
and
across
visible
spectrum,
which
realized
introducing
±π/2
shift
diffracted
wave
emitted
objects.
Our
method
showcases
successful
application
diverse
specimens,
including
silica
disk
frog
egg
cell.
work
substantiates
high-quality
microscopic
various
has
profound
implications
cellular
biology,
materials
science,
medical
diagnostics.
Deleted Journal,
Journal Year:
2025,
Volume and Issue:
2(1)
Published: Jan. 31, 2025
Optical
Metasurfaces
(MSs),
a
new
class
of
planar
optical
elements,
are
profoundly
disrupting
the
field
design,
notably
due
to
their
compactness,
multi-functionalities,
and
device
integrability.
Relying
on
nanofabrication
processes
closely
akin
semiconductor
industry,
metasurface
technology
could
benefit
from
cost-effective
potentially
large-scale
fabrication
techniques
forthwith.
However,
manufacturing
metasurfaces
with
higher
levels
complexity
in
foundries,
assembling
them
production
lines,
still
requires
comprehensive
metrology
solutions,
associated
established
standardized
measurements,
that
can
validate
functionalities
during
after
integration
into
system.
Here,
we
first
review
existing
previously
used
for
inspection,
including
intensity,
polarization,
quantitative
phase
ptychographic
imaging.
We
finally
discuss
perspectives
exciting
trends
designs,
trying
identify
disruptive
roles
they
play
endowing
next-generation
systems
improved
performance
enhanced
measurement
functionalities.
Optics Letters,
Journal Year:
2025,
Volume and Issue:
50(3), P. 1017 - 1017
Published: Jan. 17, 2025
In
this
Letter,
we
present
a
binocular
chiral
metalens
(BCM)
device
designed
for
four-dimensional
(4D)
imaging,
which
integrates
both
three-dimensional
spatial
perception
and
polarization
detection.
The
BCM
consists
of
two
identical
monocular
metalenses
that
spatially
separate
left-
right-handed
circularly
polarized
(LCP
RCP)
light.
When
integrated
with
commercial
camera,
the
enable
simultaneous
measurement
depth
information.
Numerical
simulations
experimental
results
demonstrate
can
achieve
circular
extinction
ratio
(CPER)
29.2
dB
an
average
3D
reconstruction
error
4.09%.
proposed
system
paves
pathway
multi-dimensional
significant
potential
in
applications
security,
surveillance,
future
advancements
more
complex
imaging
tasks
across
other
electromagnetic
bands,
including
terahertz
infrared
regimes.
Nano Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 21, 2025
Quantitative
optical
phase
information
provides
an
alternative
method
to
observe
biomedical
properties,
where
conventional
imaging
fails.
Phase
retrieval
typically
requires
multiple
intensity
measurements
and
iterative
computations
ensure
uniqueness
robustness
against
detection
noise.
To
increase
the
measurement
speed,
we
propose
a
single-shot
quantitative
with
metasurface
optics
that
can
be
conveniently
integrated
into
systems
minimal
modification.
The
improvement
of
speed
is
simultaneously
made
possible
by
combining
deep
learning
transport-of-intensity
equation.
As
proof-of-concept,
demonstrate
on
both
calibrated
objects
biological
specimens
using
system
our
metasurface.
When
combined
matched
neural
network,
yields
result
errors
as
low
5%
increased
space-bandwidth-product.
A
multitude
commercial
applications
benefit
from
compactness
rapid
implementation
proposed
method.
ACS Photonics,
Journal Year:
2024,
Volume and Issue:
11(7), P. 2797 - 2804
Published: July 4, 2024
The
transport
of
intensity
equation
(TIE),
a
noninterferometric
method
for
quantitative
phase
imaging
(QPI),
enables
the
characterization
transparent
objects
and
is
widely
applied
in
fields
such
as
biomedicine,
materials
science,
optical
metrology.
Traditional
TIE
methods
require
mechanical
movement
detectors
to
capture
multiple
images,
which
limits
integration,
stability,
speed
system.
In
this
work,
an
approach
introduced
that
replaces
with
alteration
properties
incident
light.
By
combining
specially
designed
polarization
multiplexed
metasurface
rotation
light
source's
state,
varifocal
metalens
realized.
This
allows
acquisition
defocused
images
without
movement.
Coupled
multiple-frame
algorithm,
it
yields
compact,
stable,
accurate
phase-imaging
technique.
Compared
dual-channel
metalens,
reconstruction
based
on
exhibits
superior
robustness
enhanced
accuracy.
experimental
results
indicate
our
can
accurately
reconstruct
different
gradients
using
partially
coherent
illumination,
achieving
average
percentage
error
less
than
2.7%.
dynamic
illumination
approach,
combined
specific
metasurfaces,
holds
potential
applications
realizing
lightweight,
multifunctional
systems.
Applied Physics Reviews,
Journal Year:
2024,
Volume and Issue:
11(4)
Published: Dec. 1, 2024
Metasurface
polarization
optics,
manipulating
using
metasurfaces
composed
of
subwavelength
anisotropic
nanostructure
array,
has
enabled
a
lot
innovative
integrated
strategies
for
versatile
and
on-demand
generation,
modulation,
detection.
Compared
with
conventional
bulky
optical
elements
control,
metasurface
optics
provides
feasible
platform
in
scale
to
build
ultra-compact
multifunctional
devices,
greatly
shrinking
the
size
whole
polarized
system
network.
Here,
we
review
recent
progresses
both
classical
quantum
regimes,
including
uniform
spatially
varying
polarization-manipulating
devices.
Basic
such
as
meta-waveplate,
meta-polarizer,
resonant
meta-devices
singularities
provide
compact
means
generate
modulate
beams.
Spatial-varying
manipulation
by
employing
pixelation
feature
metasurfaces,
leading
advanced
diffraction
imaging
functionalities,
vectorial
holography,
classic
imaging,
entanglement,
interference,
modulation.
Substituting
approaches
pave
way
on-chip
or
information
processing,
flourishing
applications
displaying,
communication,
computing.
Optics Letters,
Journal Year:
2024,
Volume and Issue:
49(12), P. 3364 - 3364
Published: May 22, 2024
High-performance
atomic
magnetometers
(AMs)
rely
on
the
measurement
of
optical
rotation,
which
requires
a
set
bulky
polarization
optics
that
limit
their
applications
in
scenarios
where
portability
and
compactness
are
necessary.
In
this
study,
miniaturized
AM
is
constructed
based
cubic
Journal of Applied Physics,
Journal Year:
2025,
Volume and Issue:
137(5)
Published: Feb. 3, 2025
The
metalens
discussed
in
this
article
is
a
planar
optical
device
built
on
metasurfaces,
utilizing
precisely
engineered
subwavelength
nanostructured
wires
to
manipulate
electromagnetic
waves.
This
enables
precise
control
over
the
phase,
amplitude,
and
polarization
of
these
Recent
advancements
research
primarily
focus
their
design
principles,
performance
optimization,
imaging
enhancement,
manufacturing
techniques,
various
application
domains.
reviews
progress
development,
highlighting
principles
across
different
frequency
bands
applications
science
technology.
Future
directions
are
expected
emphasize
material
innovation,
simplification
processes,
further
improvements
drive
adoption
cutting-edge
fields.
