Optics Express,
Journal Year:
2023,
Volume and Issue:
32(2), P. 1334 - 1334
Published: Dec. 14, 2023
2
µm
photonics
and
optoelectronics
is
promising
for
potential
applications
such
as
optical
communications,
LiDAR,
chemical
sensing.
While
the
research
on
detectors
rise,
development
of
InP-based
gain
materials
with
0D
nanostructures
rather
stalled.
Here,
we
demonstrate
low-threshold,
continuous
wave
lasing
at
wavelength
from
InAs
quantum
dash/InP
lasers
enabled
by
punctuated
growth
structure.
We
low
threshold
current
densities
7.1
width
ridge-waveguide
lasers,
values
657,
1183,
1944
A/cm
under
short
pulse
(SPW),
quasi-continuous
(QCW),
operation.
The
also
exhibited
good
thermal
stability,
a
characteristic
temperature
T0
43
K
SPW
mode.
spectra
centered
1.97
µm,
coinciding
ground-state
emission
observed
photoluminescence
studies.
believe
that
emitting
near
will
be
key
enabling
technology
communication
Nanoscale,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
Achieving
accurate
and
efficient
tumor
imaging
is
crucial
in
the
field
of
treatment,
as
it
facilitates
early
detection
precise
localization
tissues,
thereby
informing
therapeutic
strategies
surgical
interventions.
The
optical
technology
within
second
near-infrared
(NIR-II)
window
has
garnered
significant
interest
for
its
remarkable
benefits,
such
enhanced
tissue
penetration
depth,
superior
signal-to-background
ratio
(SBR),
minimal
autofluorescence,
reduced
photon
attenuation,
lower
scattering.
This
review
explained
design
optimization
nano-agents
responsive
to
NIR-II
window,
single-walled
carbon
nanotubes,
quantum
dots,
lanthanum-based
nanomaterials,
noble
metal
nanomaterials.
These
enable
non-invasive,
deep-tissue
with
high
spatial
resolution
their
properties
significantly
improve
accuracy,
efficiency,
versatility
imaging-guided
treatments.
And
we
discussed
characteristics
advantages
fluorescence
(FL)/photoacoustic
(PA)
providing
a
comprehensive
overview
latest
research
progress
different
FL/PA
therapy.
Furthermore,
exhaustively
reviewed
applications
multifunctional
nano-phototherapy
technologies
carried
out
by
light
including
photothermal
therapy
(PTT),
photodynamic
(PDT),
combined
modalities
like
photothermal-chemodynamic
(PTT-CDT),
photothermal-chemotherapy
(PTT-CT),
photothermal-
immunotherapy
(PTT-IO).
integrated
approaches
have
gradually
matured
over
past
decade
are
expected
become
safe
effective
non-invasive
treatment.
Finally,
outlined
prospects
challenges
development
innovation
diagnosis
nanoplatform.
aims
provide
insightful
perspectives
future
advancements
treatment
platforms.
Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(20), P. 1656 - 1656
Published: Oct. 16, 2024
The
integration
of
PbS
quantum
dots
(QDs)
with
graphene
represents
a
notable
advancement
in
enhancing
the
optoelectronic
properties
quantum-dot-based
devices.
This
study
investigated
electrical
transport
dot
(QD)/graphene
heterostructures,
leveraging
high
carrier
mobility
graphene.
We
fabricated
QD/graphene/SiO
Polymers,
Journal Year:
2023,
Volume and Issue:
15(17), P. 3506 - 3506
Published: Aug. 22, 2023
In
this
study,
graphene
quantum
dots
(GQDs)
with
a
diameter
of
~3
nm
were
successfully
synthesized
and
incorporated
into
poly(ethylene
terephthalate)
(PET)
matrix
to
fabricate
PET/GQDs
nanocomposites.
The
impact
GQDs
on
the
crystallization
thermal
stability
nanocomposites
was
investigated.
It
observed
that
addition
only
0.5
wt%
resulted
in
significant
increase
temperature
(peak
temperature)
PET,
from
194.3
°C
206.0
during
cooling
scan
process.
This
suggested
an
optimal
concentration
could
function
as
nucleating
agent
effectively
enhance
PET.
isothermal
method
employed
analyze
kinetics
nanocomposites,
data
showed
significantly
accelerated
rate.
Furthermore,
incorporation
PET
imparted
photoluminescent
properties
resulting
crystals
crystal
nuclei
crazes
caused
by
defects
played
vital
role
isolating
suppressing
quenching
GQDs.
effect
facilitated
detection
Optics Express,
Journal Year:
2023,
Volume and Issue:
32(2), P. 1334 - 1334
Published: Dec. 14, 2023
2
µm
photonics
and
optoelectronics
is
promising
for
potential
applications
such
as
optical
communications,
LiDAR,
chemical
sensing.
While
the
research
on
detectors
rise,
development
of
InP-based
gain
materials
with
0D
nanostructures
rather
stalled.
Here,
we
demonstrate
low-threshold,
continuous
wave
lasing
at
wavelength
from
InAs
quantum
dash/InP
lasers
enabled
by
punctuated
growth
structure.
We
low
threshold
current
densities
7.1
width
ridge-waveguide
lasers,
values
657,
1183,
1944
A/cm
under
short
pulse
(SPW),
quasi-continuous
(QCW),
operation.
The
also
exhibited
good
thermal
stability,
a
characteristic
temperature
T0
43
K
SPW
mode.
spectra
centered
1.97
µm,
coinciding
ground-state
emission
observed
photoluminescence
studies.
believe
that
emitting
near
will
be
key
enabling
technology
communication
