Enhancement of laser noise image based on photorefractive nonlinearity of lithium niobate crystals
Abstract
Enhancement
of
laser
noise
image
based
on
stochastic
resonance
process
in
lithium
niobate
crystals
is
studied
theoretically
and
experimentally
this
paper.
A
function
the
refractive
change
crystal
proposed
for
numerical
simulation.
The
simulation
results
show
that
presence
can
induce
optical
nonlinearity
to
from
self-defocusing
self-focusing.
Under
an
appropriate
intensity,
strongest
occur,
resulting
restored
signal
submerged
by
eventually.
There
a
good
agreement
between
experimental
results.
When
single
transmitting
nonlinear
system,
considered
be
result
self-coupling
scattered
transmitted
when
are
simultaneously
crystal.
research
paper
provide
theoretical
guidance
early
acquisition
post-processing
images
containing
inherent
noise,
will
promote
industrialization
information
sensing
technology
largely.
Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown
Published: May 9, 2024
Language: Английский