BaTiO3 Substrates

BaTiO3 single crystal has excellent photorefractive properties, high self-pumped phase conjugate reflectivity and two-wave mixing (optical amplification) efficiency, and has huge potential application prospects in optical information storage. At the same time it is also an important substrate substrate material.

OST Photonics offers high quality dysco3 substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements.

Application of BaTiO3 Substrate

Optical information storage

Substrate for epitaxial growth

Advantages of BaTiO3 Substrates

Excellent photo-refractive properties

Excellent ferroelectric properties

High self-pumped phase conjugate reflectivity

High two-wave mixing (optical amplification) efficiency

Ability of BaTiO3 Substrates

Orientation:<100>,<001>,<110>,<111>, etc.

Dimension: 10x10mm, 10x5mm, 5x5mm, etc.

Thickness: 0.5mm, 1.0mm, etc.

Available items: substrates, blanks and customized optics

Specification and Properties of BaTiO3 Substrates

Crystal System

Tetragona(4m): 13℃< T<132℃

a=3.99Å, c= 4.04Å (at 26℃)

Density

6.02 g/cm3

Melt Point

1612 ℃

Growth Method

TSSG (Top Seeded Solution Growth)

Dielectric Constant

ea=3700 ec=135(unclamped)

ea=2400 ec=60 (clamped)

Refractive Index

515nm

633nm

800nm

no

2.4912

2.4160

2.3681

ne

2.4247

2.3630

2.3235

Transmit Wavelengths

0.43–6.30μm

Photoelectric Coefficient

rT13=8±2 pm/V rT33=105±10 pm/V rT42=1300±100 pm/V

Reflectivity of SPPC (at 0 deg. cut）

50–70 % for λ = 515 nm(Ce:BaTiO3)

40–60 % (Pure BaTiO3) for λ = 515 nm

50–80 % for λ = 633 nm(Ce:BaTiO3)

40–60 % for λ = 633 nm (Pure BaTiO3)

Two-wave Mixing Coupling Constant

10 -40 cm-1

Absorption Loss

λ: 515nm

λ: 633nm

λ: 800nm

α: 0.285 cm-1

α: 0.108 cm-1

α: 0.033 cm-1

Orientation

<100>,<001>,<110>,<111>, etc.

Orientation Tolerance

±0.5° or better

Dimension

10x10mm, 10x5mm, 5x5mm, etc.

Dimension Tolerance

±0.1 mm or better

Thickness

0.5mm, 1.0mm, etc.

Thickness Tolerance

±0.05 mm or better

Surface Finish

Single side polished (SSP)/Double sides polished (DSP)

Surface Roughness

Ra<10Å
Atomic Particle Microscopy (AFM) test report can be provided.

Package

Class 100 clean bag, Class 1000 super clean room

Note:

The BTO substrates are poled, but with domains

BTO single crystal must be stored in temperature above 13 ℃ to avoid phase transition which will cause twin or domain inside crystal

There are many wafers manufacturers, but we are one of the best choices for you