Photonics,
Год журнала:
2024,
Номер
11(12), С. 1170 - 1170
Опубликована: Дек. 12, 2024
Incoherent
digital
holography
is
a
promising
solution
for
acquiring
three-dimensional
information
in
the
form
of
interference
without
laser.
Self-interference
principal
phenomenon
incoherent
which
splits
incident
light
wave
into
two
waves
and
interferes
with
each
one.
The
characteristics
holograms
are
defined
by
optical
configuration
wavefront
dividing
units.
In
this
paper,
we
propose
synthetic
aperture
method
to
achieve
super-resolution
geometric
phase
lens-based
self-interference
holography.
We
analyze
resolution
acquired
from
lenses
experimentally
demonstrate
enhancement
via
synthetic-aperture
method.
Moreover,
sparse
proposed
ensure
effective
data
capturing
numerical
optimization
also
fill
gap
between
empty
space
sparsely
holograms.
Applied Physics B,
Год журнала:
2024,
Номер
130(9)
Опубликована: Авг. 29, 2024
Computational
methods
have
been
established
as
cornerstones
in
optical
imaging
and
holography
recent
years.
Every
year,
the
dependence
of
on
computational
is
increasing
significantly
to
extent
that
components
are
being
completely
efficiently
replaced
with
at
low
cost.
This
roadmap
reviews
current
scenario
four
major
areas
namely
incoherent
digital
holography,
quantitative
phase
imaging,
through
scattering
layers,
super-resolution
imaging.
In
addition
registering
perspectives
modern-day
architects
above
research
areas,
also
reports
some
latest
studies
topic.
codes
pseudocodes
presented
for
a
plug-and-play
fashion
readers
not
only
read
understand
but
practice
algorithms
their
data.
We
believe
this
will
be
valuable
tool
analyzing
trends
predict
prepare
future
holography.
ACS Applied Optical Materials,
Год журнала:
2024,
Номер
2(7), С. 1247 - 1268
Опубликована: Май 2, 2024
Augmented
reality
(AR)
and
virtual
(VR)
are
emerging
as
a
next-generation
display
platform,
surpassing
conventional
flat
panel
displays.
The
AR/VR
technologies
garnering
considerable
attention
from
both
industry
academia
they
provide
immersive
user
experiences
smooth
interaction
between
the
real
digital
worlds.
current
displays,
however,
still
face
several
challenges
including
limited
field
of
view,
small
eye-box,
conflict
vergence
accommodation,
bulky
form
factor,
heavy
weight.
This
paper
aims
to
comprehensive
view
optical
elements
emphasizing
how
enhance
performance
experience
Various
techniques
explained
in
following
two
principal
aspects:
displays
based
on
(1)
holographic
metasurfaces,
(2)
combined
usage
elements.
In
each
section,
characteristics
principles
components
briefly
explained.
Then,
their
recent
applications
addressing
limitations
introduced.
Photonics Research,
Год журнала:
2024,
Номер
12(10), С. 2104 - 2104
Опубликована: Июль 9, 2024
Most
optical
information
processors
deal
with
text
or
image
data,
and
it
is
very
difficult
to
experimentally
acoustic
data.
Therefore,
advances
that
data
are
highly
desirable
in
this
area.
In
particular,
the
development
of
a
voice
acoustic-signal
authentication
technique
using
correlation
can
open
new
line
research
field
security
could
also
provide
tool
for
other
applications
where
comparison
signals
required.
Here,
we
report
holographic
by
integrating
microphone
recording
meet
some
above
requirements.
The
reported
method
avails
flexibility
3D
visualization
at
sensitive
locations
parallelism
offered
an
correlator/processor.
We
demonstrate
text-dependent
determine
authenticity
signal
discarding
accepting
accordance
reference
signal.
developed
has
screening
industrial
quality
control.
Applied Optics,
Год журнала:
2023,
Номер
63(7), С. B24 - B24
Опубликована: Ноя. 2, 2023
I
propose
methods
for
reducing
the
number
of
exposures
in
incoherent
digital
holography
with
two
polarization-sensitive
phase-only
spatial
light
modulators
(IDH
TPP-SLMs).
In
IDH
TPP-SLMs,
no
polarization
filters
are
required,
and
not
only
three-dimensional
(3D),
but
information
is
also
obtained.
However,
seven
required
to
conduct
filter-free
polarimetric
holography.
this
article,
optical
designs
modified
phase-shifting
interferometry
reduce
recordings
described.
TPP-SLMs
has
potential
single-shot
multidimensional
holographic
imaging.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Март 8, 2025
Abstract
Incoherent
digital
holography
(IDH)
is
a
passive
holographic
3D
imaging
technique
under
spatially
incoherent
light.
Single-shot
recording
with
high
light-utilization
efficiency
and
spatial
resolution
challenge
in
IDH.
Herein,
we
propose
single-shot
three-step
phase-shifting
IDH
system
1D
phase
grating
that
has
line-and-space
structure.
The
0th
±
1st
diffraction
orders
of
the
are
used
for
simultaneously
creating
three
self-interference
holograms,
which
then
captured
using
an
image
sensor
at
single
exposure.
Three-step
shifts
introduced
into
holograms
geometric
circular
polarizations.
To
compensate
intensity
variations
between
due
to
fabrication
errors,
derive
implement
generalised
algorithm.
We
experimentally
performed
reflective
objects
as
proof-of-principle
demonstration.
further
examined
theoretical
noise
tolerances
three-
four-step
methods
grating-assisted
space-division
shifting.
results
show
method
superior
when
least
four-thirds
higher
than
2D
method.
Journal of the Society for Information Display,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 5, 2025
Abstract
We
propose
an
active‐switching
light‐field
(LF)
camera
system
that
significantly
extends
the
measurable
depth
range
over
conventional
passive‐optics‐based
LF
systems
by
integrating
a
stacked
geometric
phase
lens
(GPL)
module
in
compact
design.
During
elemental
image
acquisition
and
rendering,
chromatic
aberration
focus‐tunable
GPL
is
compensated
adjusting
reconstruction
magnification
for
each
color
channel.
Additionally,
optimal
operation
sets
are
selected
based
on
color‐dependent
depth‐of‐focus
conditions.
These
optimizations
enable
proposed
GPL‐based
to
achieve
full‐color,
depth‐enhanced
imaging
while
mitigating
typical
trade‐off
between
spatial
resolution
of
field
limitations.
Journal of the Society for Information Display,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 10, 2025
Abstract
We
reduced
image
noise
in
broadband
full‐color
holographic
capture
a
compact
self‐interference
incoherent
digital
holography
(SIDH)
system
by
combining
cholesteric
liquid
crystal
(CLC)
circular
polarizer
with
quarter‐waveplate‐based
geometric
phase
lens
(QW‐GPL).
To
address
chromatic
wavefront
issues
commonly
found
conventional
half‐waveplate‐based
SIDH
systems,
we
explore
incorporating
GPL
In
particular,
resolve
angular
polarization‐dependent
QW‐GPL
modulation
utilizing
circularly
polarized
Bragg
reflection
of
CLC
as
polarization
filter.
This
approach
ensures
an
ideal
beam
state
across
wide
range
incident
angles
and
wavelengths.
By
effectively
mitigating
distortion
QW‐GPL,
our
method
significantly
improves
the
quality
reconstructed
images
form
factor,
demonstrated
entropy
values.
Abstract
A
single‐shot
phase‐shifting
method
in
incoherent
digital
holography
(IDH)
based
on
Michelson
interferometry
is
proposed
herein.
The
uses
polarization‐modulating
optical
elements
and
a
polarization
sensor
the
interferometer
optics
to
induce
geometric
phase
shift.
It
acquires
four
holograms
with
different
retardations
single
exposure
eliminate
bias
conjugate
noise
using
technique.
system
enables
real‐time
term
removal
from
recorded
hologram
without
requiring
sequential
recording
for
shifting.
Furthermore,
because
it
interferometry,
can
be
implemented
simple
reflective
expensive
or
difficult‐to‐produce
principles
of
self‐interference
shifting
structure
were
analyzed
mathematically.
IDH‐recording
experimental
setup
was
constructed
verify
method.
results
IDH
movie
recordings
confirm
feasibility
Journal of Optics,
Год журнала:
2024,
Номер
26(7), С. 075707 - 075707
Опубликована: Июнь 3, 2024
Abstract
I
propose
an
incoherent
digital
holography
(IDH)
technique
in
which
four-dimensional
(4D,
three-dimensional
(3D)
coordinates
and
polarization)
information
is
simultaneously
obtained
using
neither
polarization
filters
nor
lenses.
A
filter-free
lens-free
self-interference
interferometer
for
4D
imaging
designed
developed.
Four-dimensional
(4D)
multiplexed
recorded
phase-shifted
holograms
extracted
by
polarization-selective
phase-shifting
interferometry.
The
validity
of
the
proposed
experimentally
demonstrated
constructed
IDH
system
a
randomly
polarized
light-emitting
diode.
