Materials and Manufacturing Processes,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 17
Published: Oct. 30, 2024
GaN
has
a
wide
application
prospect
in
optoelectronics,
semiconductor
lighting
and
other
fields
because
of
its
superior
physical
electrical
attributes.
The
in-depth
research
the
preparation
processing
technology
is
particularly
important.
However,
traditional
methods
have
limitations
processing,
such
as
high
difficulty
limited
accuracy.
Laser
high-precision,
non-contact,
non-thermal
carrier
damage
method
that
widely
employed
for
growth
GaN.
Progress
laser
over
last
few
years
reviewed
this
paper,focusing
on
etching
GaN,
including
epitaxial
technology,
pulsed
deposition
stripping
transfer
technology.
Finally,
future
development
direction
challenges
growing
are
prospected.
techniques
expected
to
expand
range
applications
devices.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(40)
Published: July 26, 2024
Abstract
The
use
of
photons
to
directly
or
indirectly
drive
chemical
reactions
has
revolutionized
the
field
nanomaterial
synthesis
resulting
in
appearance
new
sustainable
laser
chemistry
methods
for
manufacturing
micro‐
and
nanostructures.
incident
radiation
triggers
a
complex
interplay
between
physical
processes
at
interface
solid
surface
liquid
gas
environment.
In
such
multi‐parameter
system,
precise
control
over
nanostructures
is
not
possible
without
deep
understanding
both
environment‐affected
processes.
present
review
intends
provide
detailed
systematization
these
surveying
well‐established
emerging
technologies
production
advanced
nanomaterials.
Both
gases
liquids
are
considered
as
potential
reacting
environments
affecting
fabrication
process,
while
subtractive
additive
analyzed.
Finally,
prospects
applications
discussed.
International Journal of Extreme Manufacturing,
Journal Year:
2024,
Volume and Issue:
6(4), P. 042002 - 042002
Published: March 20, 2024
Abstract
Optical
imaging
systems
have
greatly
extended
human
visual
capabilities,
enabling
the
observation
and
understanding
of
diverse
phenomena.
Imaging
technologies
span
a
broad
spectrum
wavelengths
from
x-ray
to
radio
frequencies
impact
research
activities
our
daily
lives.
Traditional
glass
lenses
are
fabricated
through
series
complex
processes,
while
polymers
offer
versatility
ease
production.
However,
modern
applications
often
require
lens
assemblies,
driving
need
for
miniaturization
advanced
designs
with
micro-
nanoscale
features
surpass
capabilities
traditional
fabrication
methods.
Three-dimensional
(3D)
printing,
or
additive
manufacturing,
presents
solution
these
challenges
benefits
rapid
prototyping,
customized
geometries,
efficient
production,
particularly
suited
miniaturized
optical
devices.
Various
3D
printing
methods
demonstrated
advantages
over
counterparts,
yet
remain
in
achieving
resolutions.
Two-photon
polymerization
lithography
(TPL),
technique,
enables
intricate
structures
beyond
diffraction
limit
via
nonlinear
process
two-photon
absorption
within
liquid
resin.
It
offers
unprecedented
abilities,
e.g.
alignment-free
fabrication,
prototyping
almost
arbitrary
nanostructures.
In
this
review,
we
emphasize
importance
criteria
performance
evaluation
devices,
discuss
material
properties
relevant
TPL,
techniques,
highlight
application
TPL
imaging.
As
first
panoramic
review
on
topic,
it
will
equip
researchers
foundational
knowledge
recent
advancements
optics,
promoting
deeper
field.
By
leveraging
its
high-resolution
capability,
extensive
range,
true
processing,
alongside
advances
materials,
design,
envisage
disruptive
solutions
current
promising
incorporation
future
applications.
Colloids and Interface Science Communications,
Journal Year:
2024,
Volume and Issue:
59, P. 100770 - 100770
Published: Feb. 7, 2024
With
the
ongoing
advancement
of
processing
technology,
one
hottest
subjects
is
manufacturing
materials
with
distinctive
surface
micro/nanostructures.
Among
these,
femtosecond
laser
has
been
widely
adopted
as
a
high-precision
and
high-efficiency
fabricating
technology.
When
compared
to
other
traditional
methods,
some
advantages
in
controllable
micro/nanostructures
can
fabricate
wide
range
structures,
including
periodic
microporous
array
structure,
three-dimensional
composite
so
on.
They
have
many
applications,
optical
anti-counterfeiting,
anti-reflection,
superhydrophobic
superhydrophilic
properties,
This
article
reviews
simplified
mechanism
material,
typical
fabricated
by
laser,
applications
laser-fabricated
It
proves
technical
prospect
application
potential
fabrication
Materials,
Journal Year:
2024,
Volume and Issue:
17(15), P. 3657 - 3657
Published: July 24, 2024
Ultrafast
laser
technology
has
moved
from
ultrafast
to
ultra-strong
due
the
development
of
chirped
pulse
amplification
technology.
technology,
such
as
femtosecond
lasers
and
picosecond
lasers,
quickly
become
a
flexible
tool
for
processing
brittle
hard
materials
complex
micro-components,
which
are
widely
used
in
developed
medical,
aerospace,
semiconductor
applications
so
on.
However,
mechanisms
interaction
between
an
still
unclear.
Meanwhile,
these
is
challenge.
Additionally,
highly
efficient
high-precision
manufacturing
using
needs
be
developed.
This
review
focused
on
common
challenges
current
status
materials,
nickel-based
superalloys,
thermal
barrier
ceramics,
diamond,
silicon
dioxide,
carbide
composites.
Firstly,
different
distinguished
according
their
bandgap
width,
conductivity
other
characteristics
order
reveal
absorption
mechanism
energy
during
materials.
Secondly,
transfer
transformation
investigated
by
analyzing
photons
electrons
ions
laser-induced
plasma,
well
with
continuum
Thirdly,
relationship
key
parameters
quality
discussed.
Finally,
methods
achieving
three-dimensional
micro-components
explored
detail.
Abstract
Vertical
cavity
surface
emitting
lasers
(VCSELs)
have
emerged
as
a
versatile
and
promising
platform
for
developing
advanced
integrated
photonic
devices
systems
due
to
their
low
power
consumption,
high
modulation
bandwidth,
small
footprint,
excellent
scalability,
compatibility
with
monolithic
integration.
By
combining
these
unique
capabilities
of
VCSELs
the
functionalities
offered
by
micro/nano
optical
structures
(e.g.
metasurfaces),
it
enables
various
energy-efficient
compact
size,
enhanced
performance,
improved
reliability
functionality.
This
review
provides
comprehensive
overview
state-of-the-art
devices/systems
based
on
VCSELs,
including
neural
networks,
vortex
beam
emitters,
holographic
devices,
deflectors,
atomic
sensors,
biosensors.
leveraging
open
up
new
opportunities
in
fields,
artificial
intelligence,
large-capacity
communication,
imaging,
biosensing,
so
on.
Through
this
review,
we
aim
provide
detailed
understanding
pivotal
role
played
photonics
highlight
significance
advancing
field
towards
efficient,
compact,
solutions.
