Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 13, 2024
Abstract
Optical
anisotropy,
manifested
as
birefringence,
plays
an
important
role
in
the
development
of
future
electronic
and
optoelectronic
devices.
Designing
optical
materials
with
giant
birefringence
usually
relies
on
merit
selection
arrangement
microscopic
units.
Anionic
clusters
linear
coordination
geometries
often
exhibit
larger
polarizability
making
them
recognized
gain
modules.
Nonetheless,
rarity
units
has
hindered
advancement
research
this
region.
In
study,
a
new
Hg‐based
compound,
Hg
4
InS
2
Cl
5
,
containing
well‐aligned
functional
[Hg
S
]
unit
been
synthesized.
It
exhibits
largest
experimental
(0.35@546
nm)
widest
bandgap
3.10
eV
among
thiohalides.
Density
theory
(DFT)
calculation
shows
that
highest
anisotropy
(𝛿
=
188.05)
known
anionic
clusters,
leading
to
significant
enhancement
along
direction
arrangement.
This
highlights
potential
improving
provides
insights
for
advanced
infrared
materials.
Chemical Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
The
novel
mercury-based
tellurite–nitrate
Hg
3
(TeO
)(Te
O
7
)(NO
)
2
possesses
a
unique
[(Hg
Te
4
10
2+
]
∞
layered
structure
and
exhibits
the
highest
birefringence
in
tellurite–nitrates.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(38)
Published: June 26, 2024
Abstract
Birefringent
crystals
have
essential
applications
in
optical
communication
areas.
Low‐dimensional
structures
with
inherited
structural
anisotropy
are
potential
systems
for
investigating
birefringent
materials
large
birefringence.
In
this
work,
the
zero‐dimensional
(0D)
[(
p
‐C
5
H
NO)
2
ZnCl
]
(
1
)
and
[
6
NO]
[ZnCl
4
were
obtained
by
introducing
π‐conjugated
NO
(4HP)
into
three‐dimensional
(3D)
.
Remarkably,
exhibits
a
giant
birefringence
of
0.482@546
nm,
which
is
largest
among
Zn‐based
ultraviolet
(UV)
compounds
160
times
that
According
to
theoretical
calculation
analyses,
polarizability,
high
spatial
density,
ideal
distribution
[(4HP)
0
cluster,
low
dimension
result
dramatically
increased
compared
This
work
will
provide
valid
route
accelerating
design
synthesis
excellent
low‐dimensional
systems.
Chemical Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Birefringent
materials,
capable
of
manipulating
light
polarization,
are
pivotal
in
advanced
optical
technologies.
Traditionally,
the
development
such
materials
has
predominantly
focused
on
purely
inorganic
compounds,
which
often
exhibit
limited
birefringence.
Herein,
we
present
a
new
3-pyridinesulfonate
birefringent
crystal,
Ca(3-C5H4NSO3)2·4H2O,
synthesized
via
hydrogen-bonded
regulation
strategy
designed
to
enhance
coplanarity
[3-pySO3]
groups.
As
expected,
Ca(3-C5H4NSO3)2·4H2O
demonstrates
notably
large
birefringence
0.286@532
nm,
exceeding
that
most
commercially
available
crystals.
Furthermore,
this
compound
outstanding
environmental
stability
and
short
ultraviolet
(UV)
absorption
cutoff
edge
at
257
accompanied
by
wide
band
gap
4.4
eV.
A
combination
structural
analysis
theoretical
calculations
unraveled
crucial
role
hydrogen
bonds
optimizing
arrangement
rings.
This
effectively
induces
high
degree
facilitates
formation
quasi-2D
layered
structure,
thereby
contributing
exceptional
anisotropy
Ca(3-C5H4NSO3)2·4H2O.
These
findings
highlight
as
promising
UV
crystal
underscore
efficacy
bond
engineering
for
designing
with
enhanced
properties.
Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 30, 2024
Abstract
Hybrid
organic–inorganic
halides
have
attracted
widespread
attention
due
to
their
multiple
optical
performances.
The
combination
of
distorted
metal
cation
polyhedra
and
π‐conjugated
organic
ions
is
an
effective
strategy
derive
hybrid
nonlinear
(NLO)
birefringent
crystals.
Here,
a
new
acentric
4‐cyanopyridine
mercury
halide,
(C
6
H
5
N
2
)HgCl
3
,
been
obtained
via
replacing
inorganic
with
based
on
parent
compound
CsHgCl
.
shows
the
strongest
second
harmonic
generation
(SHG)
effect
among
mercury‐pyridine
halides,
intensity
3.04
times
KH
PO
4
(KDP)
at
1.064
µm
laser
radiation.
crystal
structure
composed
specially
[HgCl
]
∞
chains
[(C
)
+
cations.
Additionally,
outstanding
experimental
birefringence
(Δn
=
[email protected]
µm),
which
largest
value
mercury‐based
its
greater
than
those
all
halide
discovery
indicates
potential
advantage
in
materials.
Chemical Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
Novel
birefringent
materials,
α-Rb
2
InP
S
7
,
β-Rb
and
Cs
were
reconstructed
from
the
nearly
isotropic
basic
building
units
displayed
largest
birefringence
among
all
known
thiophosphates.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 14, 2025
Improved
birefringence,
given
its
capacity
to
modulate
polarized
light,
holds
a
lively
role
in
the
optoelectronic
industry.
Traditionally,
alkaline-earth
metal
halides
have
possessed
low
birefringence
due
their
nearly
optical
isotropic
properties.
Herein,
substitution
of
interlayer
anion
with
linear
S─S
unit
that
meticulously
engineered
by
reduced
valence
state
and
strong
covalent
bond
is
integrated
into
optically
BaF2,
offering
new
salt-inclusion
chalcogenide
BaFS.
Notably,
it
has
dramatically
enhanced
anisotropy,
thereby
significantly
boosting
0.238@546
nm,
achieved
overall
considering
experimental
observations
theoretical
analysis.
Theoretical
investigation
established
significant
effect
on
index.
Additionally,
BaFS
demonstrates
remarkable
laser-induced
damage
threshold
(LIDT,
12.0
×
AgGaS2@1064
nm),
illuminating
promising
pathway
for
designing
materials
properties
laser
applications.
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 4, 2025
Zero-order
waveplates
(ZOWPs)
are
crucial
for
polarization
measurements
and
the
laser
industry.
In
this
work,
two
deep-ultraviolet
(DUV)
optical
crystals,
Na2MP3O9
(M
=
K,
Rb),
were
synthesized
successfully
by
introducing
alkali
metals
isolated
[P3O9]
groups
with
low
polarizability.
Comprehensive
characterization
reveals
that
Rb)
feature
DUV
cutoff
edges
(<200
nm)
tiny
birefringence
(0.0078
0.0087
@
532
nm,
respectively).
addition,
they
found
to
be
congruent
melting
compounds
X-ray
diffraction
(XRD)
analysis.
The
first-principles
calculations
exhibit
P-O
unit
is
main
contributor
bandgap
other
performances.
investigation
demonstrates
ring
an
advantageous
group
exploring
ZOWP
materials.
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 3, 2025
Abstract
Optical
anisotropy,
as
the
core
physical
property
for
polarization
manipulation,
has
always
posed
a
significant
challenge
in
design
of
functional
optical
materials
regarding
its
regulation
mechanism
and
performance
optimization.
In
mid-far
infrared
(IR)
region,
that
possess
both
large
birefringence
wide
transparent
range
are
extremely
scarce.
this
study,
we
synthesized
Hg9Ga4Se4Cl16
(HGSC),
tridymite-like
topological
structure
incorporating
well-aligned
linear
[Hg3Se2]
units.
HGSC
exhibits
an
exceptional
0.808
at
546
nm,
which
is
67
times
higher
than
commercial
MgF2,
while
also
possessing
broadest
transparency
window
among
Hg-based
chalcogenide
single
crystals
(0.4
to
25
µm).
Theoretical
calculations
reveal
originates
from
clusters,
exhibit
highest
anisotropy
(𝛿
=
430)
all
known
birefringence-active
This
study
presents
new
bifunctional
unit
combine
IR
birefringence.
Furthermore,
first
selenide
feature
[Hg3]2+
atomic
multinuclear
compounds
offer
potential
applications
thermoelectric,
magnetism,
low-temperature
superconductivity.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(38)
Published: June 26, 2024
Abstract
Birefringent
crystals
have
essential
applications
in
optical
communication
areas.
Low‐dimensional
structures
with
inherited
structural
anisotropy
are
potential
systems
for
investigating
birefringent
materials
large
birefringence.
In
this
work,
the
zero‐dimensional
(0D)
[(
p
‐C
5
H
NO)
2
ZnCl
]
(
1
)
and
[
6
NO]
[ZnCl
4
were
obtained
by
introducing
π‐conjugated
NO
(4HP)
into
three‐dimensional
(3D)
.
Remarkably,
exhibits
a
giant
birefringence
of
0.482@546
nm,
which
is
largest
among
Zn‐based
ultraviolet
(UV)
compounds
160
times
that
According
to
theoretical
calculation
analyses,
polarizability,
high
spatial
density,
ideal
distribution
[(4HP)
0
cluster,
low
dimension
result
dramatically
increased
compared
This
work
will
provide
valid
route
accelerating
design
synthesis
excellent
low‐dimensional
systems.