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Stock List Crystals & Substrates

Stock List Targets

Crystal properties

Symmetry

Orthorhombic

Point group

2 mm (@ temperature fromm –50°C to 222 ± 4°C)

Lattice Parameters

A = 5.68961 Å
B = 3.9692 Å
C = 5.7256 Å
 

Thermal Expansion^.

A_a = 5.010 x 10^-6/°C
A_b = 1.410 x 10^-5/°C
A_c = 5.010 x 10^-7/°C

Density

4.62 g/cm³

Hardness (Mohs)

5

Phase Transition Temperature

-50 °C; 220°C; 430°C

Transsparent Range

400 – 4500 nm

Absorption loss

£ 1 %/cm @ 1064 nm

Damage threshold

³ 4 J/cm² @ 527 nm (500 ps, single pulse)
³ 6 J/cm² @1054 nm (700 ps, single pulse)

Principal Axes Û Crystallographic Axes

x Û c, y Û a, z Û b
( ie. N_b> n_a> n_c )

Typical Refractive Index

n_a (n_y)

n_b (n_z)

n_c (n_x)

430 nm

2.4145

2.4974

2.2771

532 nm

2.3223

2.3813

2.2022

860 nm

2.2372

2.2784

2.1338

1064

2.2195

2.2576

2.1194

Sellmeier Equations: ( l in mm)

n_x² = 4.4208 + 0.10044 /(l² – 0.054084) – 0.019592 l²

n_y² = 4.8355 + 0.12839 /(l² – 0.056342) – 0.025379 l²

n_x² = 4.9873 + 0.15149 /(l² – 0.064143) – 0.028775 l²