Attosecond
science
and
technology
have
emerged
as
a
promising
path
for
improving
our
understanding
of
light–matter
interaction.
High
harmonic
generation
based
light
sources
combine
high
photon
energy,
broad
spectrum,
short
duration
with
relatively
compact
implementation,
which
makes
them
flexible
tools
to
study
modify
physical
chemical
properties
matter
by
acting
directly
on
electronic
degrees
freedom.
Because
extreme
ultraviolet
radiation
interacts
primarily
outer
inner
valence
electrons,
it
finds
likely
applications
in
atomic,
molecular,
material
science.
Despite
their
spectacular
successes,
the
development
these
is
still
subject
intense
investigations,
searching
performances
terms
specifications
reliability.
In
this
perspective
article,
we
present
some
current
developments
sources,
well
related
quantum
attosecond
dynamics
atoms
molecules.
Journal of Physics Photonics,
Год журнала:
2022,
Номер
4(3), С. 032001 - 032001
Опубликована: Май 31, 2022
Abstract
Within
the
last
two
decades
attosecond
science
has
been
established
as
a
novel
research
field
providing
insights
into
ultrafast
electron
dynamics
that
follows
photoexcitation
or
photoionization
process.
Enabled
by
technological
advances
in
laser
amplifiers,
turn,
powerful
engine
driving
development
of
sources
intense
pulses.
This
article
focuses
on
high
repetition
rate
laser-based
delivering
energy
pulses
with
duration
only
few
optical
cycles,
for
applications
science.
In
particular,
power,
parametric
chirped
pulse
amplification
system
is
described,
which
was
developed
to
drive
an
pump-probe
beamline
targeting
experiments
electron-ion
coincidence
detection
at
acquisition
rates.
Optics Letters,
Год журнала:
2022,
Номер
47(19), С. 5084 - 5084
Опубликована: Авг. 24, 2022
The
output
of
a
200kHz
,
34W300fs
ytterbium
amplifier
is
compressed
to
31
with
>88%
efficiency
reach
peak
power
2.5GW
which
date
record
for
single-stage
bulk
multi-pass
cell.
Despite
operation
80
times
above
the
critical
self-focusing
in
material,
setup
demonstrates
excellent
preservation
input
beam
quality.
Extensive
and
pulse
characterizations
are
performed
show
that
pulses
promising
drivers
high
harmonic
generation
nonlinear
optics
gases
or
solids.
Frequency
combs
with
mode
spacing
of
10–20
GHz
are
critical
for
increasingly
important
applications
such
as
astronomical
spectrograph
calibration,
high-speed
dual-comb
spectroscopy,
and
low-noise
microwave
generation.
While
electro-optic
modulators
microresonators
can
provide
narrowband
comb
sources
at
this
repetition
rate,
a
significant
remaining
challenge
is
means
to
produce
pulses
sufficient
peak
power
initiate
nonlinear
supercontinuum
generation
spanning
hundreds
terahertz
(THz)
required
self-referencing.
Here,
we
simple,
robust,
universal
solution
problem
using
off-the-shelf
polarization-maintaining
amplification
fiber
components.
This
fiber-integrated
approach
temporal
compression
demonstrated
resonant
frequency
1550
nm.
We
show
how
readily
achieve
shorter
than
60
fs
rate
20
GHz.
The
same
technique
be
applied
picosecond
10
demonstrate
by
9×
50
5.5
kW.
These
compressed
enable
flat
more
600
nm
after
propagation
through
multi-segment
dispersion-tailored
anomalous-dispersion
highly
fibers
or
tantala
waveguides.
source
an
octave-spanning
spectrum
self-referencing
in
dispersion-engineered
silicon
nitride
simple
all-fiber
spectral
broadening
fills
gap
transforming
any
into
broadband
wide
range
that
benefit
from
the
high
pulse
require
access
individual
modes.
IEEE Journal of Selected Topics in Quantum Electronics,
Год журнала:
2024,
Номер
30(6: Advances and Applications), С. 1 - 14
Опубликована: Март 5, 2024
This
review
analyzes
the
evolution,
applications,
and
future
prospects
of
hollow
fiber
compression
technique,
a
pivotal
advancement
in
ultrafast
laser
technology.
Over
past
three
decades,
this
technique
has
emerged
as
cornerstone,
proving
instrumental
generation
few-cycle
pulses
characterized
by
millijoule-level
energy,
spanning
wide
spectral
range
from
ultraviolet
to
mid-infrared
wavelengths.
Its
versatility
efficiency
have
found
applications
diverse
scientific
disciplines,
ranging
attosecond
science
extreme
nonlinear
optics.
The
delves
into
historical
development
highlighting
key
milestones
technological
breakthroughs
that
contributed
its
current
status.
widespread
adoption
laboratories
on
global
scale
is
investigated,
an
exploration
conducted
continuously
reported
innovative
experimental
implementations.
impact
scrutinized,
emphasizing
role
application
isolated
pulses.
Optics Letters,
Год журнала:
2024,
Номер
49(10), С. 2717 - 2717
Опубликована: Апрель 17, 2024
We
report
an
amplification-free
thin-disk
laser
system
delivering
0.9
GW
peak
power.
The
120
fs
pulses,
at
14
MHz,
centered
around
1
µm,
containing
12.8
µJ
delivered
by
a
oscillator,
were
compressed
factor
15
down
to
8.0
with
148
W
average
output
power
and
overall
82%
efficiency.
Additionally,
we
showed
that
even
sub-two-cycle
operation
6.2
can
be
reached
this
technology.
will
crucial
part
of
the
XUV
frequency
comb
being
developed
unique
high-repetition
rate
driver
for
attosecond
pulse
generation.
Nature Photonics,
Год журнала:
2022,
Номер
17(2), С. 187 - 192
Опубликована: Дек. 19, 2022
Abstract
The
serrodyne
principle
enables
an
electromagnetic
signal
to
be
frequency
shifted
by
applying
a
linear
phase
ramp
in
the
time
domain.
This
phenomenon
has
been
exploited
shift
signals
radiofrequency,
microwave
and
optical
regions
of
spectrum
over
ranges
up
few
gigahertz,
for
example,
analyse
Doppler
radiofrequency
noise
suppression
stabilization.
Here
we
employ
this
centre
high-power
femtosecond
laser
pulses
range
several
terahertz
with
help
nonlinear
multi-pass
cell.
We
demonstrate
our
method
experimentally
shifting
central
wavelength
state-of-the-art
75
W
comb
from
1,030
nm
1,060
1,000
nm.
Furthermore,
show
that
wavelength-shifting
technique
supports
coherence
characteristics
at
hertz-level
while
improving
temporal
pulse
quality.
is
generally
applicable
wide
parameter
different
systems,
enabling
efficient
conversion
lasers
spectral
beyond
gain
bandwidth
available
platforms.
Optics Express,
Год журнала:
2023,
Номер
31(12), С. 19554 - 19554
Опубликована: Апрель 5, 2023
Since
its
first
demonstration
in
2016,
the
multi-pass
spectral
broadening
technique
has
covered
impressive
ranges
of
pulse
energy
(3
µJ
-
100
mJ)
and
peak
power
(4
MW
GW).
Energy
scaling
this
into
joule-level
is
currently
limited
by
phenomena
such
as
optical
damage,
gas
ionization
spatio-spectral
beam
inhomogeneity.
These
limitations
can
be
overcome
novel
convex-concave
arrangement,
which
exhibits
crucial
properties
large
mode
size
compactness.
In
a
proof-of-principle
experiment,
260
fs,
15
200
pulses
are
broadened
subsequently
compressed
to
approximately
50
fs
with
90%
efficiency
excellent
homogeneity
across
profile.
We
simulate
proposed
concept
for
40
mJ
1.3
ps
input
discuss
possibility
further
scaling.
Journal of Instrumentation,
Год журнала:
2023,
Номер
18(06), С. T06001 - T06001
Опубликована: Июнь 1, 2023
Abstract
Laser-plasma
accelerators
are
capable
of
sustaining
accelerating
fields
10–100
GeV/m,
100–1000
times
that
conventional
technology
and
the
highest
produced
by
any
widely
researched
advanced
accelerator
concepts.
also
intrinsically
accelerate
short
particle
bunches,
several
orders
magnitude
shorter
than
technology,
which
leads
to
reductions
in
beamstrahlung
and,
hence,
savings
overall
power
consumption
reach
a
desired
luminosity.
These
properties
make
laser-plasma
promising
for
more
compact,
less
expensive
high-energy
linear
collider
providing
multi-TeV
polarized
leptons.
In
this
submission
Snowmass
2021
Accelerator
Frontier,
we
discuss
motivation
laser-plasma-accelerator-based
collider,
status
field,
potential
concepts
up
15
TeV.
We
outline
research
development
path
toward
based
on
highlight
near-term
mid-term
applications
path.
The
required
experimental
facilities
carry
out
described.
conclude
with
community
recommendations
developed
during
Snowmass.
Optics Letters,
Год журнала:
2024,
Номер
49(20), С. 5787 - 5787
Опубликована: Сен. 18, 2024
Pulse
compression
based
on
periodic
layered
Kerr
media
has
been
demonstrated
as
an
effective
technique
for
femtosecond
pulses
with
energies
around
100
µJ
or
more.
We
report
such
a
compressor
designed
in
the
10
-
range,
which
is
valuable
many
applications.
Pulses
from
fiber
chirped-pulse
amplifier
are
compressed
300
fs
to
short
60
fs,
good
pulse
and
beam
quality.
The
simple
efficient
way
extend
performance
of
common
Yb-based
sources
microjoule
energies.
Applied Physics Letters,
Год журнала:
2025,
Номер
126(10)
Опубликована: Март 1, 2025
We
present
a
spectral
phase-only
shaping
technique
allowing
to
generate
arbitrary
temporal
shapes
and
demonstrate
its
use
for
ultrafast
ytterbium-based
laser
sources.
This
is
based
on
the
introduction
of
nonlinear
chirp
that
determined
solely
by
input
intensity
target
intensity.
describe
working
principle
experimentally
generation
triangle-shaped
pulses
at
output
source,
which
delivers
150
μ
J,
sub-200
fs
kHz.
These
are
then
passed
through
multipass
cell
observe
wavelength
shifting
via
self-phase
modulation.
A
tunabibility
14
nm
achieved
around
central
1034
nm.