Optics Express,
Journal Year:
2024,
Volume and Issue:
32(12), P. 21517 - 21517
Published: May 14, 2024
In
this
paper,
a
dielectric
elastomer
(DE)-driven
liquid
prism
enabling
two-dimensional
beam
control
is
proposed.
The
proposed
consists
of
flexible
driver
and
cavity.
glass
plate
driven
by
DE
to
change
the
tilt
angle
liquid-solid
interface
for
steering
field
view
(FOV)
tuning.
maximum
optical
deflection
8.13°
response
time
76.77
ms
were
measured,
variable
FOV
capability
was
also
verified.
can
be
used
in
modulation,
microscope
systems.
Abstract
To
reveal
the
fundamental
aspects
hidden
behind
a
variety
of
transient
events
in
mechanics,
physics,
and
biology,
highly
desired
ability
to
acquire
three-dimensional
(3D)
images
with
ultrafast
temporal
resolution
has
been
long
sought.
As
one
most
commonly
employed
3D
sensing
techniques,
fringe
projection
profilometry
(FPP)
reconstructs
depth
scene
from
stereo
taken
sequentially
structured
illuminations.
However,
imaging
speed
current
FPP
methods
is
generally
capped
at
several
kHz,
which
limited
by
projector-camera
hardware
number
patterns
required
for
phase
retrieval
unwrapping.
Here
we
report
novel
learning-based
technique,
termed
single-shot
super-resolved
(SSSR-FPP),
enables
100,000
Hz.
SSSR-FPP
uses
only
pair
low
signal-to-noise
ratio
(SNR),
low-resolution,
pixelated
as
input,
while
high-resolution
unwrapped
orders
can
be
deciphered
specific
trained
deep
neural
network.
Our
approach
exploits
significant
gain
achieved
reducing
window
conventional
high-speed
cameras,
“regenerating”
lost
spatial
through
learning.
demonstrate
high
spatio-temporal
SSSR-FPP,
present
videography
scenes,
including
rotating
turbofan
blades,
exploding
building
blocks,
reciprocating
motion
steam
engine,
etc.,
were
previously
challenging
or
even
impossible
capture
methods.
Experimental
results
establish
step
forward
field
optical
sensing,
offering
new
insights
into
broad
spectrum
dynamic
processes
across
various
scientific
disciplines.
Abstract
As
a
frontier
technology,
holography
has
important
research
values
in
fields
such
as
bio-micrographic
imaging,
light
field
modulation
and
data
storage.
However,
the
real-time
acquisition
of
3D
scenes
high-fidelity
reconstruction
technology
not
yet
made
breakthrough,
which
seriously
hindered
development
holography.
Here,
novel
holographic
camera
is
proposed
to
solve
above
inherent
problems
completely.
The
consists
end
calculation
end.
At
camera,
specially
configured
liquid
materials
lens
structure
based
on
voice-coil
motor-driving
are
used
produce
so
that
can
quickly
capture
focus
stack
real
scene
within
15
ms.
end,
new
structured
network
(FS-Net)
designed
for
hologram
calculation.
After
training
FS-Net
with
renderer
learnable
Zernike
phase,
it
enables
13
first
device
achieve
incoherent
scene,
our
breaks
technical
bottlenecks
difficulty
acquiring
low
quality
reconstructed
image,
incorrect
defocus
blur.
experimental
results
demonstrate
effectiveness
focal
plane
information
scene.
opens
up
way
application
display,
modulation,
measurement.
Abstract
Light-field
displays
typically
consist
of
a
two-dimensional
(2D)
display
panel
and
light
modulation
device.
The
2D
presents
synthesized
parallax
images,
with
the
total
information
content
three-dimensional
(3D)
field
dictated
by
panel’s
resolution.
Angular
resolution
serves
as
critical
metric
for
light-field
displays,
where
higher
angular
correlates
more
realistic
3D
visual
experience.
However,
improvement
is
accompanied
reduction
in
spatial
resolution,
due
to
limitations
To
address
this
challenge,
method
enhanced
utilization
introduced,
achieved
through
independent
chrominance
luminance.
A
static
image
system
proposed
verify
feasibility
method.
employs
bidirectional
grating
(BAMG)
collimated
source
(CLS)
create
uniformly
distributed
viewpoints
space.
luminance
film
(LMF)
(CMF)
are
utilized
modulate
information,
images
printed
at
pixel
densities
720
pixels
per
inch
(PPI)
8000
dots
(DPI),
respectively,
align
differential
sensitivities
human
system.
In
experiment,
achieves
full-parallax,
high-fidelity
color
98.2°
horizontal
97.7°
vertical
view
(FOV).
So,
modulating
separately
has
been
proven
achieve
effects.
PhotoniX,
Journal Year:
2025,
Volume and Issue:
6(1)
Published: Feb. 21, 2025
Abstract
Holographic
3D
display
technology,
widely
considered
the
ultimate
solution
for
real
display,
has
broad
applications
in
fields
including
advertisement,
industrial
manufacturing
and
military.
However,
it
is
difficult
to
simultaneously
realize
color
holographic
with
wide
viewing
angle
high
brightness
required
an
immersive
visual
experience.
Here,
a
novel
system
based
on
customized
achromatic
liquid
crystal
grating
phase-only
spatial
light
modulator
proposed.
Thanks
secondary
diffraction
performed
by
grating,
nine
images
of
red,
green
blue
channels
overlap
space
time
sequence.
Additionally,
hologram
encoding
method
developed,
which
introduces
frequency
loss
function
dynamic
weights
ensure
that
differences
all
components
domain
can
be
learned.
The
proposed
dramatically
enhances
energy
utilization
factor
five,
resulting
significantly
brighter
reconstructed
while
substantially
attenuating
background
noise
non-target
regions.
This
groundbreaking
system,
achieving
remarkable
~
65°
good
image
quality
brightness,
represents
significant
advancement
offering
comprehensive
wide-viewing-angle,
high-brightness,
displays
potential
across
diverse
technological
domains.
Abstract
Liquid
lens
offers
a
novel
approach
to
achieving
large
depth
of
field,
wide
viewing
angle,
high
speed,
and
high-quality
imaging
in
zoom
optical
systems.
However,
the
aperture
reliability
limit
lens’s
performance
various
applications.
The
liquid
material
is
crucial
for
large-aperture
lens.
To
solve
dielectric
failure
problem
associated
with
aperture,
we
first
reveal
mechanism
based
on
transport
properties
electrolyte
solutions
impact
electrochemical
reaction
rates
from
physical
chemistry
so
as
propose
theoretical
method
suppress
fundamentally.
Based
this
theory,
develop
series
non-aqueous
organic
high-voltage
failure.
Next,
identify
optimal
formulation
comprehensive
fabricate
centimeter-level
electrowetting
This
features
an
power
variation
range
−11.98
m
−1
12.93
,
clear
function,
which
can
enlarge
field
view
adjustment
holographic
reconstructions
while
maintaining
excellent
edge
clarity
reconstructed
images.
proposed
effectively
suppresses
under
voltage,
demonstrates
performance,
holds
exciting
potential
applications
3D
display,
precision
measurement,
biomedical
observation,
more.
Crystal Growth & Design,
Journal Year:
2024,
Volume and Issue:
24(16), P. 6851 - 6864
Published: Aug. 7, 2024
This
investigation
presents
a
novel
approach
for
the
nondestructive,
and
real-time
analysis
of
crystalline
structures,
including
transition
metal
dichalcogenides
renowned
their
optoelectronic
capabilities.
The
methodology
employs
synergistic
blend
infrared
digital
holography
deep
learning,
utilizing
an
in-line
system
Transformer-based
learning
algorithms,
to
provide
detail
in
material
microstructure.
article
investigates
effects
different
parameters
on
reproduction
fidelity,
with
particular
focus
phase
accuracy.
A
holography-guided
training
strategy
is
proposed
enhance
framework's
performance.
By
demonstration
applications
such
as
evaluating
dielectric
characteristics
ReS2,
detecting
thickness
layers
MoS2,
monitoring
microstructure
evolution
during
growth
NaCl
CuSO4
crystals.
Not
only
addresses
existing
limitations
characterization
but
also
offers
avenues
exploration.
