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Optical Properties

Units

Value

Transmission/Transparency Range

nm

155 - 3200

 Optical Homogeneity (δn)

cm¹

 ~ 10‾⁶

Refractive Index (n)                                             @1064nm

@  532nm                    

@  355nm



nx=1.5656, ny=1.5905, nz= 1.6055

nx=1.5785, ny=1.6065, nz= 1.6212

nx=1.5973, ny=1.6286, nz= 1.6444

Non-linear Coefficients

pm/V

d31 =1.06, d32 = -0.98

d33 = 0.05

 Effective Nonlinear Expressions:      


dooe = d32.cosφ (XY plane)

deeo = d31.cos2θ + d32.sin2θ (XZ) doeo = d31.cosθ (YZ)

deoe = d31.cos2θ + d32.sin2θ (XZ)

 Electro-optic Coefficients:

pm/V


 Absorption Coefficient @1064nm

cm¹

0.001

Physical / Thermal Properties

Units

Value

 Chemical Formula


LiB3O5

 Crystal Symmetry/Structure


Orthorhombic

 Space Group


Pna21

 Point Group


mm2

Melting Point

ºC

834

 Thermal Expansion Coeff. @20ºC

 10‾⁶/ºC

┴19.0

║   44

Thermal Conductivity Coeff. @20ºC

W/m/ºK


 Specific Heat Capacity

 J/g K

TBA

 Density  

g/cm³

2.47

 Mohs Hardness


6

 Optical Damage Threshold @1064nm,1ns

GW/cm²

c.19

 LBO Crystal - Sellmeier Equations


nx² = 2.454140 + 0.011249/(λ² - 0.011350) - 0.014591λ² - 6.60×10.λ

ny² = 2.539070 + 0.012711/(λ² - 0.012523) - 0.018540λ² - 2.0×10.λ

nz² = 2.586179 + 0.013099/(λ² - 0.011893) - 0.017968λ² - 2.26×10.λ





  








 LBO Crystal - Availability


                      

  








Lithium Triborate (LiB3O5), LBO, is a relatively new nonlinear optical material which has a wide

transparency range, high damage threshold and a relatively large effective SHG coefficient. LBO also has

good chemical and physical properties.


LBO crystal strengths include:



LBO crystal applications include:





 LBO Crystal - Common Configurations


 LBO Crystal Properties


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 LBO Crystals


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Application/Operation

Input

nm

Output

nm

Theta

Phi

SHG (Type I) NCPM @1064nm (Nd:YAG)

1064

532

90

0

SHG (Type I) NCPM @1053nm (Nd:YLF)

1053

527

90

0

SHG (Type I) NCPM @1030nm (Yb:YAG)

1030

515

90

0

SHG (Type I) NCPM @1040-1045nm (Yb doped fibre)

1042

521

90

0

SHG (Type I) CPM @1064nm (Nd:YAG)

1064

532

90

11.4

SHG (Type I) CPM @1053nm (Nd:YLF)

1053

527

90

12.1

THG (Type II) CPM @1064nm (Nd:YAG)

1064

355

c.42.5

90

THG (Type I) CPM @1064nm (Nd:YAG)

1064

355

90

37.1

THG (Type II) CPM @1053nm (Nd:YLF)

1053

351

c.45

90