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Calcite (CaCO3) Crystals
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Calcite crystal is a negative uniaxial crystal well-known for its high
birefringence and transparence in broad region of spectrum. It is the
ideal material for manufacturing various polarizers used in visible-IR
range such as Glan-Taylor polarizers, Glan-Thompson polarizers and Glan
laser polarizers. Recently, calcite plate is also widely used for time
delay compensation between two orthogonally polarized ultrafast pulses.
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Basic Properties of Calcite Crystal
Standard
Products
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Part No. |
W x H x T (mm) |
Orientation |
Coating |
In stock |
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CAL5002-A |
5 x 5 x 0.2 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL5002-45 |
5 x 5 x 0.2 |
Θ=45o |
uncoated |
Email/Call |
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CAL5005-A |
5 x 5 x 0.5 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL5005-45 |
5 x 5 x 0.5 |
Θ=45o |
uncoated |
Email/Call |
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CAL5010-A |
5 x 5 x 1.0 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL5010-45 |
5 x 5 x 1.0 |
Θ=45o |
uncoated |
Email/Call |
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CAL5015-A |
5 x 5 x 1.5 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL5020-A |
5 x 5 x 2.0 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL5025-A |
5 x 5 x 2.5 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL5030-A |
5 x 5 x 3.0 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL5035-A |
5 x 5 x 3.5 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL12002-A |
12.7 x 12.7 x 0.2 |
a-cut (90o) |
uncoated |
Yes |
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CAL12002-A-AR1030/515 |
12.7 x 12.7 x 0.2 |
a-cut (90o) |
AR@1030/515nm |
Yes |
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CAL12002-45-AR800/400 |
12.7 x 12.7 x 0.2 |
Θ=45o |
AR@800/400nm |
Yes |
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CAL12003-A |
12.7 x 12.7 x 0.3 |
a-cut (90o) |
uncoated |
Yes |
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CAL12005-A |
12.7 x 12.7 x 0.5 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL12005-A-AR1030/515 |
12.7 x 12.7 x 0.5 |
a-cut (90o) |
AR@1030/515nm |
Yes |
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CAL12008-A |
12.7 x 12.7 x 0.8 |
a-cut (90o) |
uncoated |
Yes |
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CAL12010-A |
12.7 x 12.7 x 1.0 |
a-cut (90o) |
uncoated |
Yes |
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CAL12010-A-AR800/400 |
12.7 x 12.7 x 1.0 |
a-cut (90o) |
AR@800/400nm |
Yes |
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CAL12010-A-AR1030/515 |
12.7 x 12.7 x 1.0 |
a-cut (90o) |
AR@1030/515nm |
Yes |
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CAL12010-45-AR800/400 |
12.7 x 12.7 x 1.0 |
Θ=45o |
AR@800/400nm |
Yes |
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CAL12015-A |
12.7 x 12.7 x 1.5 |
a-cut (90o) |
uncoated |
Yes |
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CAL12020-A |
12.7 x 12.7 x 2.0 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL12020-A-AR800/400 |
12.7 x 12.7 x 2.0 |
a-cut (90o) |
AR@800/400nm |
Yes |
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CAL12025-A |
12.7 x 12.7 x 2.5 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL12030-A |
12.7 x 12.7 x 3.0 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL12035-A |
12.7 x 12.7 x 3.5 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL15008-A-AR800/400 |
15.0 x 15.0 x 0.8 |
a-cut (90o) |
AR@800/400nm |
Yes |
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CAL25010-A |
25 x 25 x 1.0 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL25010-45 |
25 x 25 x 1.0 |
Θ=45o |
uncoated |
Email/Call |
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CAL25020-A |
25 x 25 x 2.0 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL25020-45 |
25 x 25 x 2.0 |
Θ=45o |
uncoated |
Email/Call |
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CAL25040-A |
25 x 25 x 4.0 |
a-cut (90o) |
uncoated |
Email/Call |
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CAL25040-45 |
25 x 25 x 4.0 |
Θ=45o |
uncoated |
Email/Call |
Calcite components for
ultrafast applications are highly customized. Please
contact us for calcite components that best suit your applications.
Prisms:
Calcite crystals with a wedge angle (α)
can be custom fabricated with the specified orientation of the optical axis.
A paired or such prisms with the optical axes orthogonal to each other can
be used to continuously adjust the phase shift or time delay between two
orthogonally polarized pulses.
Coatings:
Calcite
crystals are uncoated unless the coating is specified.
The
input and
output faces can be AR coated with R<0.25% at the specified wavelength(s). Please specify the coating and append to the part number,
e.g. CAL5010-A-AR800/400 for the
a-cut calcite crystal with the dual AR coating @ 800/400nm.
Coating curve:
AR800/400nm
Mount:
For customer convenience and protection of crystals, all
crystals with the thickness =< 3.0mm are pre-mounted in a 1" (25.4 mm) anodized aluminum
holder. A standard 1"
mirror mount may be conveniently used to tune the crystals for optimized
birefringence or time delay. A rotation stage may be further used
if a larger angular change is needed.
1.5" (38.1mm) holders are available for crystals with large apertures.
Specifications of Calcite Components
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Dimension Tolerance: |
±0.05 mm |
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Wedge Angle Tolerance: |
0.1° |
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Surface Quality:
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20/10 Scratch and Dig
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Optical Axis
Orientation: |
+/-0.5° |
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Parallelism: |
<15 arc sec |
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Perpendicularity: |
<10 arc min |
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Flatness:
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λ/4 @ 632.8 nm |
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Transmission
Wavefront Distortion: |
<λ/4 @ 632.8 nm
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