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Birefringent Crystal a-BBO

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Product Description

High temperature form BBO (α -BaB2O4) are negative uniaxial crystals. They have large birefringence over a broad transparent range of 190nm to 3500nm. The physical, chemical, thermal and optical properties of α -BBO crystals are similar to those of ß -BBO. However, the nonlinear optical properties of α -BBO crystals are nonexistent due to the centric symmetry with its crystal structure. α -BBO crystals are not recommended for NLO processes.

Basic Properties of a-BBO crystal
Transparency Range	190~3500nm
Density	3.85 g/cm ²
Hygroscopic Susceptibility	Low
Mohs Hardness	4.5
Thermal Expansion Coefficients（/C^O）	-9.3X10^-6（C ）
Thermal Expansion Coefficients（/C^O）	-9.5X10^-6 （A ）
Damage Threshold	1GW
Refractive Indices	No=1.6776，Ne= 1.5534，532nm No=1.6579，Ne=1.5379，1064nm
Sellmeier Equation (λ in μm)	n_o²= 2.7471+0.01878/(λ² -0.01822)-0.01354λ² n_e ²= 2.37153+0.01224/(λ² -0.01667)-0.01516λ²

Capabilities

Material

a-BBO Crystal

Transparency Curve

Product Description

High temperature form BBO (α -BaB2O4) are negative uniaxial crystals. They have large birefringence over a broad transparent range of 190nm to 3500nm. The physical, chemical, thermal and optical properties of α -BBO crystals are similar to those of ß -BBO. However, the nonlinear optical properties of α -BBO crystals are nonexistent due to the centric symmetry with its crystal structure. α -BBO crystals are not recommended for NLO processes.

Basic Properties of a-BBO crystal
Transparency Range	190~3500nm
Density	3.85 g/cm ²
Hygroscopic Susceptibility	Low
Mohs Hardness	4.5
Thermal Expansion Coefficients（/C^O）	-9.3X10^-6（C ）
Thermal Expansion Coefficients（/C^O）	-9.5X10^-6 （A ）
Damage Threshold	1GW
Refractive Indices	No=1.6776，Ne= 1.5534，532nm No=1.6579，Ne=1.5379，1064nm
Sellmeier Equation (λ in μm)	n_o²= 2.7471+0.01878/(λ² -0.01822)-0.01354λ² n_e ²= 2.37153+0.01224/(λ² -0.01667)-0.01516λ²

Capabilities

Material

a-BBO Crystal

Transparency Curve

Birefringent Crystal a-BBO

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