Optics Express,
Journal Year:
2023,
Volume and Issue:
31(22), P. 36677 - 36677
Published: Oct. 5, 2023
Terahertz
logic
gates
play
a
crucial
role
in
optical
signal
processing
and
THz
digitization.
In
this
paper,
we
propose
design
strategy
for
graphene-based
metamaterial
all-optical
gate
devices
based
on
the
induced
transparency
effect
of
surface
isolated.
Theoretically,
realize
Boolean
operations
by
coupling
hexagonal
graphene
resonant
cavity
with
dual
embedded
rotatable
ellipses.
Based
coupled
mode
theory,
elliptical
rotation
angle
resonator
is
an
important
factor
affecting
PIT
phenomenon.
We
control
input
adjusting
angles
two
The
analysis
results
show
that:
under
incidence
y-polarized
light,
ellipse
deflection
0°
represents
'0',
30°
'1'.
Through
numerical
simulation,
structure
realizes
logical
NAND
AND.
Under
x-polarized
90°
three
NAND,
XNOR
OR.
Finally,
analyze
performance
extinction
ratio.
ratio
up
to
10.38
dB
when
performing
OR
operations.
Numerically
simulated
can
be
key
components
telecommunication
equipment.
