Crystal Structure

Orthorhombic, Space group Pna2₁, Point group mm2

Lattice Parameter

a=8.4473Å, b=7.3788Å , c=5.1395Å , Z=2

Melting Point   

About 834℃

Mohs Hardness   

6

Density         

2.47 g/cm³

Thermal Conductivity  

3.5W/m/K

Thermal Expansion Coefficient

a_x=10.8x10^-5/K, a_y= -8.8x10^-5/K, a_z=3.4x10^-5/K

Crystal Structure

Orthorhombic, Space group Pna2₁, Point group mm2

Max. crystal size

30x30 x 25 mm

Transparency Range

160-2600nm

SHG Phase Matchable Range

551 ~ 2600nm  (Type I)      790-2150nm (Type II)

Therm-optic Coefficient

(°C, λ in μm)

dnx/dT=-9.3X10^-6
dny/dT=-13.6X10^-6
dnz/dT=(-6.3-2.1λ)X10^-6

Absorption  Coefficient

<0.1%/cm at 1064nm    <0.3%/cm at 532nm

Angle Acceptance

6.54mrad-cm    (φ, Type I,1064 SHG)
15.27mrad-cm    (q, Type II,1064 SHG)

Temperature Acceptance

4.7°C-cm   (Type I, 1064 SHG)
7.5°C-cm   (Type II,1064 SHG)

Spectral Acceptance

1.0nm-cm (Type I, 1064 SHG)
1.3nm-cm (Type II,1064 SHG)

Walk-off Angle

0.60° (Type I  1064 SHG)
0.12° (Type II  1064 SHG)