Advances in Miniaturized Computational Spectrometers
Advanced Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 30, 2024
Abstract
Miniaturized
computational
spectrometers
have
emerged
as
a
promising
strategy
for
miniaturized
spectrometers,
which
breaks
the
compromise
between
footprint
and
performance
in
traditional
by
introducing
resources.
They
attracted
widespread
attention
variety
of
materials,
optical
structures,
photodetectors
are
adopted
to
fabricate
with
cooperation
reconstruction
algorithms.
Here,
comprehensive
review
focusing
on
two
crucial
components:
spectral
encoding
algorithms
provided.
Principles,
features,
recent
progress
strategies
summarized
detail,
including
space‐modulated,
time‐modulated,
light‐source
encoding.
The
classified
into
deep
learning
algorithms,
they
carefully
analyzed
based
mathematical
models
required
reconstruction.
Drawing
from
analysis
components,
cooperations
them
considered,
figures
merits
highlighted,
optimization
improving
their
outlined,
considerations
operating
these
systems
application
achieve
hyperspectral
imaging
is
also
discussed.
Finally,
insights
potential
future
applications
developments
Язык: Английский
Nonlinear self-calibrated spectrometer with single GeSe-InSe heterojunction device
Science Advances,
Год журнала:
2024,
Номер
10(20)
Опубликована: Май 17, 2024
Computational
spectrometry
is
an
emerging
field
that
uses
photodetection
in
conjunction
with
numerical
algorithms
for
spectroscopic
measurements.
Compact
single
photodetectors
made
from
layered
materials
are
particularly
attractive
since
they
eliminate
the
need
bulky
mechanical
and
optical
components
used
traditional
spectrometers
can
easily
be
engineered
as
heterostructures
to
optimize
device
performance.
However,
such
typically
nonlinear
devices,
which
adds
complexity
extracting
spectra
their
response.
Here,
we
train
artificial
neural
network
recover
full
spectral
photoresponse
of
a
GeSe-InSe
p-n
heterojunction
device.
The
has
range
400
1100
nm,
small
footprint
~25
×
25
square
micrometers,
mean
reconstruction
error
2
10
−4
power
spectrum
at
0.35
nanometers.
Using
our
device,
demonstrate
solution
metamerism,
apparent
matching
colors
different
distributions,
fundamental
problem
imaging.
Язык: Английский
An Inversely Designed Reconstructive Spectrometer on SiN Platform
Laser & Photonics Review,
Год журнала:
2024,
Номер
18(6)
Опубликована: Март 13, 2024
Abstract
Reconstructive
spectrometers,
which
leverage
the
compressive
sensing
technique
and
computational
algorithm,
are
promising
solutions
for
high‐performance
integrated
spectrometers.
Among
various
options
realizing
reconstructive
stratified
waveguide
filters
(SWFs)
have
emerged
as
a
particularly
attractive
choice
due
to
their
ultra‐compact
size
high
performance.
However,
previous
demonstrations
of
SWFs
on
silicon
substrates
suffered
from
suboptimal
non‐reproducible
spectrometer
performance
brute‐force
random
design
approach.
In
this
paper,
applying
bio‐inspired
inverse
algorithm
system
level
multiple
correlated
is
proposed.
The
allows
precise
optimized
in
order
higher
spectral
resolution
each
SWF
lower
cross‐correlations
between
any
two
SWFs,
overcoming
limitations
methods.
effectiveness
approach
demonstrated
by
implementing
nitride
(SiN)
platform,
more
thermally
stable
can
support
wider
optical
range
than
silicon.
Язык: Английский
Monolithic Integrated Multi‐Parameter Light‐Field Sensor Based on Tailored Disordered Nanostructures
Advanced Optical Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 30, 2025
Abstract
Light
fields
carry
abundant
information,
including
intensity,
spectral,
and
polarization,
which
have
been
widely
studied
in
imaging,
quantum
technologies,
communications.
However,
conventional
cameras
are
typically
limited
to
capturing
intensity
alone,
neglecting
other
crucial
dimensions
of
restricts
their
application
scope.
Disordered
nanostructures
significantly
enhance
light
scattering
absorption,
thereby
broadening
the
spectral
response
range
enabling
sensitive
detection
multi‐dimensional
physical
angle,
wavelength,
polarization
state.
Here,
by
combining
disordered
with
silicon‐on‐insulator
(SOI)
waveguides,
an
integrated
light‐field
sensor
that
integrates
is
successfully
realized.
The
sensor,
a
compact
integration
footprint
32
×
µm
2
,
demonstrated
angle
resolution
3.2°
within
elevation
angles
ranging
from
−20°
20°,
reconstruction
3.25
nm
across
wavelengths
1520
1550
nm.
Additionally,
azimuth
state
functionalities
further
validated.
This
multi‐parameter,
highly
design
enhances
performance
photonic
circuits
(PICs)
shows
great
potential
for
applications
LIDAR,
satellite
communication,
optical
interconnection.
Язык: Английский
Miniaturized spectroscopy and AI-driven probes in food industry automation
Food Research International,
Год журнала:
2025,
Номер
unknown, С. 116646 - 116646
Опубликована: Май 1, 2025
Язык: Английский
Development of a nondestructive prediction model for nutrient content of orchid leaves using different hyperspectral sensors
Computers and Electronics in Agriculture,
Год журнала:
2025,
Номер
237, С. 110519 - 110519
Опубликована: Май 15, 2025
Язык: Английский
Flexible and High‐Performance Solution‐Processable Single‐Detector Organic Spectrometer
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 30, 2025
Abstract
Spectrometers
are
indispensable
tools
for
civil
and
military‐related
optoelectronic
applications.
To
meet
the
requirements
of
revolutionary
data/AI‐driven
era,
next‐generation
spectrometers
must
not
only
be
flexible
with
minimal
sizes
but
exhibit
high
accuracy
resolution.
In
this
study,
a
compact,
high‐performance,
organic
spectrometer
is
reported,
fabricated
using
solution
processing,
which
employs
an
optical
cascade
architecture
by
integrating
electrochromic
devices
photodetectors.
This
can
achieve
resolution
0.56
nm,
0.14
broad
detection
range
from
400
to
1000
nm
also
realize
vital
absolute
spectral
irradiance
measurement
ranging
10
−8
−4
W
cm
−2
−1
.
Additionally,
its
intrinsic
flexibility
highly
replaceable
feasibility
bandgap‐tunable
materials
enable
their
applicability
excellent
portability
adaptability
in
upcoming
era
or
scenarios.
Язык: Английский
Mid-infrared photodetector spectrometer concept based on ultrathin all-dielectric metamaterial with azimuth-incidence-angle tuned perfect optical absorption: Design and analysis
Materials & Design,
Год журнала:
2024,
Номер
245, С. 113298 - 113298
Опубликована: Сен. 1, 2024
Язык: Английский
Unlocking New Opportunities for Crop Management Through Hyper Spectral Image Analysis
Lecture notes in electrical engineering,
Год журнала:
2024,
Номер
unknown, С. 195 - 201
Опубликована: Окт. 19, 2024
Язык: Английский
Dual‐Channel Electrostatically Actuated MEMS Fabry–Perot Filtering Module for Near‐Infrared Spectroscopic Detection
Advanced Materials Technologies,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 11, 2024
Abstract
MEMS‐based
Fabry–Perot
filter
components
(MEMS‐FPC)
have
garnered
significant
attention
in
the
field
of
micro‐spectrometers
due
to
their
ability
perform
high‐efficiency
spectral
analysis
at
microscale.
However,
achieving
optimal
peak
transmission
performance
across
a
broad
range
remains
core
challenge
development
MEMS‐FPC
modules.
In
this
work,
novel
dual‐channel
is
presented,
electrostatically
actuated
NIR
module
that
overcomes
limitations
electrostatic
tuning
detection
through
integration
an
innovative
structure
and
filtering.
Fabricated
using
wafer‐level
bulk
micromachining
techniques,
enables
continuous
precise
under
driving
voltage
0–40
V.
The
two
channels
cover
ranges
814–946
nm
968–1211
nm,
respectively,
transmittance
over
79%
with
full‐width
half
maximum
(FWHM)
values
ranging
from
7.59
43.29
setting
new
standard
for
range.
results
demonstrate
potential
as
high‐performance
sensor,
demonstrating
its
future
application
microspectrometer
when
integrated
commercial
CCDs.
With
low
power
consumption
compact
size,
well‐suited
into
portable
devices
such
smartphones
drones,
offering
real‐time
sensing
capabilities.
Язык: Английский