Barium Borate

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BBO CRYSTAL

BBO - Beta-Barium-Borate crystal combines wide transparency range, large nonlinear coupling, wide thermal acceptance bandwidth, high laser damage threshold and good mechanical properties. It is typically used for second harmonic generation (SHG) from UV to about 2.1 m; broadly tunable optical parametric oscillators (OPOs) and amplifiers (OPAs); autocorrelation systems.

Maximum available size: 50 mm Dia x 70 mm thick.

Main Properties

Chemical Formula

b-BaB₂O₄

Crystal Symmetry

Hexagonal

Lattice Constants, Å

a=12.532
b= 12.717

Density, g/cm³ at 293 K

3.84

Transmission Range, m

0.19-3.3

Nonlinear Optical Coefficients, pm/V
d₁₁
d₃₁

2.3
0.07d₁₁

Hardness (Mohs)

4

Optical Damage Threshold
at 532 nm, 15 ns, GW/cm²

5.4

Refractive Index

l, nm

n_o

n_e

1064

1.6551

1.5425

532

1.6749

1.5555

334

1.7055

1.5775

266

1.7570

1.6146

213

1.8470

1.6746