Since
the
discovery
of
attosecond
pulses,
experiments
became
possible
in
material
physics
at
an
timescale
[1]
,
[2]
relying
on
XUV
sources.
An
ever-increasing
number
these
are
performed
high
repetition
rate
to
reduce
acquisition
time
and
improve
signal-to-noise
ratio.
These
require
few-cycle
driving
pulses
with
either
a
stabilized
carrier
envelope
phase
(CEP)
or
pulse
tagging
strategy
.
In
both
cases,
CEP
determination
is
needed
single
shot
basis
irrespective
system
rate.
To
this
aim,
TOUCAN
(Temporal
dispersion
based
One-shot
Ultrafast
Carrier
ANalysis)
method
was
developed
[3]
which
has
potential
for
every
single-shot
drift
measurement
even
MHz
low
intensities.
Journal of Physics B Atomic Molecular and Optical Physics,
Год журнала:
2022,
Номер
55(17), С. 172001 - 172001
Опубликована: Июль 11, 2022
Abstract
The
ability
to
resolve
the
complete
electric
field
of
laser
pulses
from
terahertz
mid-infrared
spectral
ranges
has
enriched
time-domain
spectroscopy
for
decades.
Field-resolved
measurements
in
this
range
have
been
performed
routinely
ambient
air
by
various
techniques
like
electro-optic
sampling,
photoconductive
switching,
field-induced
second
harmonic
generation,
and
time
stretch
photonics.
On
contrary,
resolving
light
at
near-infrared
limited
attosecond
streaking
other
that
require
operation
vacuum.
Recent
advances
are
circumventing
these
shortcomings
extending
direct,
detection
petahertz
frequencies.
In
first
part
letter,
recent
field-resolved
reviewed.
part,
different
approaches
temporal
scanning
discussed,
as
resolution
methods
is
prone
jitter.
review
concludes
discussing
technological
obstacles
emerging
applications
such
advancements.
Applied Physics Letters,
Год журнала:
2025,
Номер
126(13)
Опубликована: Март 1, 2025
The
carrier-envelope
phase
(CEP)
is
a
key
parameter
for
attosecond
waveform
control
of
ultrashort
laser
pulses.
For
systems
with
high
repetition
rates,
however,
single-shot
CEP
detection
still
challenging.
Building
on
recent
findings
electric
current
generation
in
gases,
we
show
that
an
optimized
method,
long-term
stable
feasible.
We
investigate
the
achievable
performance
depending
various
parameters
such
as
pulse
duration,
gas
pressure,
or
incident
intensity.
latter
exhibits
regime
where
saturation
ionization
process
boosts
sensitivity
signal,
which
elucidated
by
numerical
calculations.
Optics Letters,
Год журнала:
2023,
Номер
48(20), С. 5431 - 5431
Опубликована: Авг. 21, 2023
We
propose
a
single-shot,
high-repetition
rate
measurement
scheme
of
the
carrier-envelope
phase
offset
ultrashort
laser
pulses.
The
spectral
fringes
resulting
from
f-2f
nonlinear
interferometry,
encoding
carrier-envelope-phase,
are
evaluated
completely
optically
via
an
optical
Fourier
transform.
For
demonstration,
carrier-envelope-phase
200
kHz,
few-cycle
parametric
chirped-pulse
amplification
(OPCPA)
system
was
measured
employing
interferometer
as
periodic
filter.
proposed
method
shows
excellent
agreement
with
simultaneous
by
fast
line-scan
camera.
Fibers,
Год журнала:
2022,
Номер
10(10), С. 88 - 88
Опубликована: Окт. 14, 2022
In
this
review
paper,
we
describe
the
current
state
of
art
to
stabilize
output
radiation
ultrashort-pulse
(USP)
fiber
lasers
and
analyze
passive
methods
reduce
magnitude
fluctuations
in
amplitude–frequency
noise
radiation.
Regarding
main
characterization
mode-locked
lasers,
further
consider
influence
on
laser
operation
primary
generation
regimes
starting
up
cavities,
such
as
solitons,
stretched
pulses,
similaritons,
dissipative
solitons.
Then,
proceed
external
internal
factors
that
affect
stability
characteristics
depending
mode-locking
mechanism
resonator
scheme.
The
ability
to
measure
and
control
the
carrier
envelope
phase
(CEP)
of
few-cycle
laser
pulses
is
paramount
importance
for
both
frequency
metrology
attosecond
science.
Here,
we
present
a
meter
relying
on
CEP-dependent
photocurrents
induced
by
circularly
polarized
focused
between
electrodes
in
ambient
air.
new
device
facilitates
compact
single-shot,
CEP
measurements
under
conditions
promises
tagging
at
repetition
rates
orders
magnitude
higher
than
most
conventional
detection
schemes
as
well
straightforward
implementation
longer
wavelengths.
Optics Express,
Год журнала:
2021,
Номер
29(12), С. 18734 - 18734
Опубликована: Апрель 12, 2021
Measurement
of
the
absolute
phase
ultrashort
optical
pulses
in
real-time
is
crucial
for
various
applications,
including
frequency
comb
and
high-field
physics.
Modern
single-shot
techniques,
such
as
dispersive
Fourier
transform
time-lens,
make
it
possible
to
investigate
non-repetitive
spectral
dynamics
yet
do
not
provide
information
on
phase.
In
this
work,
we
demonstrate
a
novel
approach
characterise
pulse-to-pulse
stability
with
acquisition
rate
15
MHz.
The
rate,
limited
by
repetition
used
free-running
mode-locked
Erbium-doped
fibre
laser,
substantially
exceeds
one
traditional
techniques.
method
based
time-stretch
technique.
It
exploits
simple
all-fibre
Mach-Zehnder
interferometric
setup
remarkable
resolution
∼7.3
mrad.
Using
proposed
method,
observed
oscillations
output
governed
fluctuations
pulse
intensity
due
Kerr-induced
self-phase
modulation
at
frequencies
peaked
4.6
kHz.
As
proof-of-concept
application
demonstrated
methodology,
evaluated
behaviour
during
vibration
exposure
laser
platform.
results
propose
new
view
measurements
that
avenue
numerous
sensing
applications
MHz
data
frequencies.
Optics Express,
Год журнала:
2020,
Номер
28(12), С. 17161 - 17161
Опубликована: Апрель 14, 2020
We
present
a
novel
approach
for
measuring
the
carrier-envelope
phase
(CEP)
stability
of
laser
source
by
employing
process
high
harmonic
generation
(HHG)
in
solids.
HHG
solids
driven
few-cycle
pulses
is
very
sensitive
to
waveform
driving
pulse,
therefore
enabling
track
shot-to-shot
CEP
fluctuations
source.
This
strategy
particularly
practical
at
long
central
wavelength
up
mid-infrared
spectral
range
where
usual
techniques
used
visible
or
near-infrared
regions
are
challenging
transpose.
experimentally
demonstrate
this
tool
centered
9.5~μm.
We
present
a
novel
detection
scheme
for
single-shot
Carrier-Envelope
Phase
measurement
scheme,
based
on
evaluating
f-2f
fringes
by
means
of
optical
Fourier
transform,
which
is
suitable
high-repetition
rates
(>
200kHz)
lasers.
We
propose
a
single-shot
Carrier-Envelope
Phase
measurement
scheme,
based
on
evaluating
f-2f
fringes
by
means
of
optical
Fourier
transform.
The
method
is
suitable
for
measuring
at
high-repetition
rate
(
>
200kHz)
and
low
pulse
energy.
OSA High-brightness Sources and Light-driven Interactions Congress 2020 (EUVXRAY, HILAS, MICS),
Год журнала:
2020,
Номер
83, С. HTh3B.7 - HTh3B.7
Опубликована: Янв. 1, 2020
The
original
TOUCAN
device
is
capable
of
single-shot
CEP
drift
measurement
~3
µm
lasers
at
arbitrary
repetition
rate.
We
have
expanded
this
technique
for
near-infrared
and
crosschecked
results
with
a
traditional
method.
