Crystal Structure:

Trigonal, space group R3c

Lattics Parameters:

a=b=12.532Å, c=12.717Å, Z=6

Melting point

About 1095℃

Mohs Hardness

4

Density

3.85g/cm3

Thermal Conductivity

1.2W/m/K(┴c): 1.6W/m/K(//c)

Thermal Expansion Coefficients

a11=4x10-6/K; a33=36x10-6/K

Transparency Range:

190-3500nm

SHG Phase Matchable Range

409.6-3500nm(Type I)    525-3500nm(Type II)

therm-optic Coefficients(/℃)

dno/dT=-16.6X10-6

dne/dT=-9.3X10-6

Absorption Coefficients

<0.1%/cm at 1064nm         <1%/cm at 532nm

Angle Acceptance

0.8mrad-cm      (θ, Type I,1064 SHG)   
      1.27mrad-cm    (θ, Type II,1064 SHG)

Temperature Acceptance

55℃-cm

Spectral Acceptance

1.1nm-cm

Walk-off Angle

2.7°   (Type I 1064 SHG)
       3.2°  (Type II 1064 SHG)

NLO Coefficients

deff (I)=d31sinθ+(d11cosΦ-d22sin3Φ)cosθ
       deff (II)=(d11sin3Φ+d22cos3Φ)cos2θ

Non-vanished NLO susceptibilities

d11=5.8xd36(KDP)
       d31=0.05xd11
       d22<0.05xd11

sellmeier Equations(λ in μm )

no2=2.7359+0.01878 / (λ2-0.01822) -0.01354 λ2
       ne2=2.3753+0.01224 / (λ2-0.01667) -0.01516 λ2

Electro-optic coefficients:

r22=2.7pm/V

Half-wave voltage:

7KV (at 1064nm,3*3*20mm3)

Resistivity:

>1011 ohm-cm

Relative Dielectric Constant:

εs11/εo:6.7
       εs33/εo:8.1
       Tan δ<0.001