Electronics,
Год журнала:
2024,
Номер
13(2), С. 260 - 260
Опубликована: Янв. 5, 2024
In
this
paper,
a
method
of
generating
controllable
spikes
utilizing
symmetric
semiconductor
ring
lasers
(SRLs)
is
investigated,
and
various
optical
behaviors
biological
neurons
are
successfully
emulated
on
faster
timescale.
We
demonstrate
the
synchronized
spike
phenomena
in
two
directions,
generated
both
clockwise
(CW)
counterclockwise
(CCW)
modes
tunable
laser
(TL)-injected
SRL.
The
size
peaks
interval
between
them
can
be
manipulated
by
adjusting
output
complex
amplitude
TL
bias
current.
At
same
time,
we
also
analyzed
CW
mode
TL-injected
SRL
replicated
four
distinct
discharge
patterns
neurons.
These
findings
offer
promising
prospects
for
future
neuromorphic
research.
SIAM Journal on Applied Mathematics,
Год журнала:
2022,
Номер
82(2), С. 408 - 426
Опубликована: Март 14, 2022
We
consider
the
ultrasound
imaging
problem
governed
by
a
nonlinear
wave
equation
of
Westervelt
type
with
variable
speed.
show
that
coefficient
nonlinearity
can
be
recovered
uniquely
from
knowledge
Dirichlet-to-Neumann
map.
Our
proof
is
based
on
second
order
linearization
and
use
Gaussian
beam
solutions
to
reduce
inversion
weighted
geodesic
ray
transform.
propose
an
algorithm
report
results
numerical
implementation
solve
in
transmission
setting
frequency
domain.
Electronics,
Год журнала:
2024,
Номер
13(2), С. 260 - 260
Опубликована: Янв. 5, 2024
In
this
paper,
a
method
of
generating
controllable
spikes
utilizing
symmetric
semiconductor
ring
lasers
(SRLs)
is
investigated,
and
various
optical
behaviors
biological
neurons
are
successfully
emulated
on
faster
timescale.
We
demonstrate
the
synchronized
spike
phenomena
in
two
directions,
generated
both
clockwise
(CW)
counterclockwise
(CCW)
modes
tunable
laser
(TL)-injected
SRL.
The
size
peaks
interval
between
them
can
be
manipulated
by
adjusting
output
complex
amplitude
TL
bias
current.
At
same
time,
we
also
analyzed
CW
mode
TL-injected
SRL
replicated
four
distinct
discharge
patterns
neurons.
These
findings
offer
promising
prospects
for
future
neuromorphic
research.
