Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Aug. 13, 2024
Abstract
Silicon
is
the
ideal
material
for
building
electronic
and
photonic
circuits
at
scale.
Integrated
quantum
technologies
in
silicon
offer
a
promising
path
to
scaling
by
leveraging
advanced
semiconductor
manufacturing
integration
capabilities.
However,
lack
of
deterministic
light
sources
strong
photon-photon
interactions
poses
challenge
scalability.
In
this
work,
we
demonstrate
an
indistinguishable
photon
source
photonics
based
on
artificial
atom.
We
show
that
G
center
waveguide
can
generate
high-purity
telecom-band
single
photons.
perform
high-resolution
spectroscopy
time-delayed
two-photon
interference
indistinguishability
photons
emitted
from
waveguide.
Our
results
atoms
suitable
networks
processors.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Feb. 20, 2024
Abstract
A
general-purpose
photonic
processor
can
be
built
integrating
a
silicon
programmable
core
in
technology
stack
comprising
an
electronic
monitoring
and
controlling
layer
software
for
resource
control
programming.
This
leverage
the
unique
properties
of
photonics
terms
ultra-high
bandwidth,
high-speed
operation,
low
power
consumption
while
operating
complementary
synergistic
way
with
processors.
These
features
are
key
applications
such
as
next-generation
5/6
G
wireless
systems
where
reconfigurable
filtering,
frequency
conversion,
arbitrary
waveform
generation,
beamforming
currently
provided
by
microwave
subsystems
that
cannot
scaled
down.
Here
we
report
first
remarkable
capability
to
implement
all
required
basic
functionalities
system
suitable
programming
its
resources.
The
is
fabricated
incorporates
full
photonic/electronic
stack.
Nature Materials,
Journal Year:
2024,
Volume and Issue:
23(7), P. 928 - 936
Published: May 22, 2024
Controlling
topological
phases
of
light
allows
the
observation
abundant
phenomena
and
development
robust
photonic
devices.
The
prospect
more
sophisticated
control
with
devices
for
practical
implementations
requires
high-level
programmability.
Here
we
demonstrate
a
fully
programmable
chip
large-scale
integration
silicon
nanocircuits
microresonators.
Photonic
artificial
atoms
their
interactions
in
our
compound
system
can
be
individually
addressed
controlled,
allowing
arbitrary
adjustment
structural
parameters
geometrical
configurations
dynamic
phase
transitions
diverse
insulators.
Individual
programming
on
generic
enables
comprehensive
statistical
characterization
robustness
against
relatively
weak
disorders,
counterintuitive
Anderson
induced
by
strong
disorders.
This
rapidly
reprogrammed
to
implement
multifunctionalities,
providing
flexible
versatile
platform
applications
across
fundamental
science
technologies.
Science Advances,
Journal Year:
2024,
Volume and Issue:
10(34)
Published: Aug. 23, 2024
Metasurfaces,
which
offer
a
diverse
range
of
functionalities
in
remarkably
compact
size,
have
captured
the
interest
both
scientific
and
industrial
sectors.
However,
their
inherent
static
nature
limits
adaptability
for
further
applications.
Reconfigurable
metasurfaces
emerged
as
solution
to
this
challenge,
expanding
potential
Among
series
tunable
devices,
electrically
controllable
devices
garnered
particular
attention
owing
seamless
integration
with
existing
electronic
equipment.
This
review
presents
recent
progress
reported
respect
providing
an
overview
technological
development
trajectory
current
state
art.
In
particular,
we
analyze
major
tuning
strategies
discuss
applications
spatial
light
modulators,
optical
waveguides,
adaptable
emissivity
regulators.
Furthermore,
challenges
opportunities
associated
implementation
are
explored,
thereby
highlighting
bridge
gap
between
electronics
photonics
enable
groundbreaking
systems.
Abstract
Sensors
are
indispensable
tools
of
modern
life
that
ubiquitously
used
in
diverse
settings
ranging
from
smartphones
and
autonomous
vehicles
to
the
healthcare
industry
space
technology.
By
interfacing
multiple
sensors
collectively
interact
with
signal
be
measured,
one
can
go
beyond
signal-to-noise
ratios
(SNR)
attainable
by
individual
constituting
elements.
Such
techniques
have
also
been
implemented
quantum
regime,
where
a
linear
increase
SNR
has
achieved
via
using
entangled
states.
Along
similar
lines,
coupled
non-Hermitian
systems
provided
yet
additional
degrees
freedom
obtain
better
higher-order
exceptional
points.
Quite
recently,
new
class
systems,
known
as
topological
(NTOS)
theoretically
proposed.
Remarkably,
synergistic
interplay
between
non-Hermiticity
topology
is
expected
bestow
such
an
enhanced
sensitivity
grows
exponentially
size
sensor
network.
Here,
we
experimentally
demonstrate
NTOS
network
photonic
time-multiplexed
resonators
synthetic
dimension
represented
optical
pulses.
judiciously
programming
delay
lines
network,
realize
archetypal
Hatano-Nelson
model
for
our
sensing
scheme.
Our
measured
sensitivities
different
lattice
sizes
confirm
characteristic
exponential
enhancement
NTOS.
We
show
this
peculiar
response
arises
due
combined
synergy
topology,
something
absent
Hermitian
lattices.
demonstration
paves
way
realizing
unprecedented
sensitivities.
ACS Photonics,
Journal Year:
2022,
Volume and Issue:
9(10), P. 3181 - 3195
Published: Sept. 29, 2022
Programmable
photonics
have
the
potential
to
completely
transform
a
range
of
emerging
applications,
including
optical
computing,
signal
processing,
light
detecting
and
ranging,
quantum
applications.
However,
implementing
energy-efficient
large-scale
systems
remains
elusive
because
commonly
used
programmable
photonic
approaches
are
volatile
energy-hungry.
Recent
results
on
nonvolatile
phase-change
material
(PCM)
integrated
present
promising
opportunity
create
truly
photonics.
The
ability
drastically
change
refractive
index
PCMs
in
fashion
allows
creating
units
with
zero-static
energy.
By
taking
advantage
electrical
control,
reconfiguration,
zero
crosstalk
between
each
unit,
can
enable
extra
(ELSI)
In
this
Perspective,
we
briefly
review
recent
progress
PCM
discuss
challenges
limitations
technology.
We
argue
that
energy
efficiency
is
more
critical
parameter
than
operating
speed
for
photonics,
making
an
ideal
candidate.
This
has
disruptive
paradigm
shift
reconfigurable
research
philosophy,
as
slow
but
large
modulation
provide
better
solution
ELSI
fast
power-hungry,
small
tuning
methods.
also
highlight
exciting
opportunities
leverage
wide
bandgap
visible-wavelength
such
optogenetics,
rewritable
circuits
(PICs)
using
nanosecond
pulsed
lasers.
latter
dramatically
reduce
fabrication
cost
PICs
democratize
PIC
manufacturing
process
rapid
prototyping.
ACS Photonics,
Journal Year:
2022,
Volume and Issue:
9(11), P. 3467 - 3485
Published: Oct. 19, 2022
Packaging
of
photonic
integrated
circuit
(PIC)
chips
is
an
essential
and
critical
step
before
they
can
be
into
functional
optoelectronic
systems.
Photonic
packaging
however
often
a
major
barrier
impeding
scalable
deployment
PIC
technologies
given
its
high
cost
limited
throughput.
This
perspective
addresses
the
technical
challenges
discusses
promising
strategies
research
directions
to
overcome
"packaging
bottleneck".
Advanced Optical Materials,
Journal Year:
2023,
Volume and Issue:
11(20)
Published: Sept. 10, 2023
Abstract
In
recent
years,
with
the
further
ministration
of
semiconductor
device
in
integrated
circuits,
power
consumption
and
data
transmission
bandwidth
have
become
insurmountable
obstacles.
As
an
technology,
photonic
circuits
(PICs)
a
promising
potential
post‐Moore
era
more
advantages
processing,
communication,
diversified
sensing
applications
for
their
ultra‐high
process
speed
low
consumption.
Silicon
photonics
is
believed
to
be
encouraging
solution
realize
PICs
because
mature
CMOS
process.
The
past
decades
witnessed
huge
growth
silicon
PICs.
However,
there
still
demand
development
enable
powerful
chip‐scale
systems
new
functionalities.
this
paper,
review
components,
functional
blocks,
emerging
offered.
common
components
are
classified
into
several
sections,
including
on‐chip
light
sources,
fiber‐to‐chip
couplers,
resonators,
waveguide‐based
sensors,
photodetectors,
modulators.
blocks
mentioned
memories
neural
networks.
Finally,
paper
concludes
study.
Advanced Science,
Journal Year:
2023,
Volume and Issue:
10(24)
Published: June 20, 2023
Abstract
Cascaded
metasurfaces
can
exhibit
powerful
dynamic
light
manipulation
by
mechanically
tuning
the
far‐field
interactions
in
layers.
However,
most
current
designs,
are
separated
gaps
smaller
than
a
wavelength
to
form
total
phase
profile,
representing
direct
accumulation
of
profiles
each
layer.
Such
small
gap
sizes
may
not
only
conflict
with
conditions
but
also
pose
great
difficulties
for
practical
implementations.
To
overcome
this
limitation,
design
paradigm
taking
advantage
ray‐tracing
scheme
that
allows
cascaded
operate
optimally
at
easily
achievable
is
proposed.
Enabled
relative
lateral
translation
two
metasurfaces,
continuous
two‐dimensional
(2D)
beam‐steering
device
1064
nm
designed
as
proof
concept.
Simulation
results
demonstrate
ranges
±45°
biaxial
deflection
angles
within
±3.5
mm
translations,
while
keeping
divergence
deflected
less
0.007°.
The
experimental
agree
well
theoretical
predictions,
and
uniform
optical
efficiency
observed.
generializeddesign
pave
way
towards
myriad
tunable
metasurface
devices
various
applications,
including
limited
detection
ranging
(LiDAR)
free
space
communication.
