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Lithium iodate (LiIO3) crystal is a negative uniaxial crystal, with high nonlinear optical coefficient and wide transparency range, radiation damage resistance characteristics. It can be used for nonlinear acousto-optic and piezoelectric applications in a 347 nm ruby laser as a medium and narrow pulse, wide band ultrasonic transducer. It can also be used as two, three time frequency and mixing of medium and low power laser.
Product Description
Lithium iodate (LiIO3) crystal is a negative uniaxial crystal, with high nonlinear optical coefficient and wide transparency range, radiation damage resistance characteristics. It can be used for nonlinear acousto-optic and piezoelectric applications in a 347 nm ruby laser as a medium and narrow pulse, wide band ultrasonic transducer. It can also be used as two, three time frequency and mixing of medium and low power laser.
Main Features
High nonlinear optical coefficient, wide transparent range, wide phase matching range, good temperature stability of the refractive index, and low damage threshold value
Material Properties
| Crystal structure | hexagonal crystal system |
| Crystal structure | aniaxial negative crystal |
| Point group | 6 |
| Melting point | 420℃ |
| Density | 4.487 g/cm3 |
| Mohs hardness | 3.5–4.0 |
| Transparent range | 280–4000nm |
| Absorption coefficient @1064 nm, | ＜0.05cm-1 |
| Refractive index @ 1,064 nm | no= 1.8571, ne= 1.7165 |
| @800 nm | no= 1.8676, ne= 1.7245 |
| @532 nm | no= 1.8982, ne= 1.7480 |
| Type 1 SHG Phase-matching range | 570–4000nm |
| Type 1 SHG Acceptance @1064 nm | |
| Angle, and the mradcm | 0.77 |
| Light spectrum,cm-1×cm | 12.74 |
| Type 1 SHG Go @1064 nm, mrad | 74.3 |
| Nonlinear coefficient | d31=4.4 pm/V(@1064 nm) |
| Effective nonlinearity | deff = d31sinθ |
| Damage threshold | ＞100MW/cm2@1064 nm, 10 ns |
| Sellmeier Equation (λ in μm) | no2=3.415716+0.047031/(λ2-0.035306)-0.008801λ2 |
| ne2=2.918692+0.035145/(λ2-0.028224)-0.003641λ2 | |
Product Parameters
| Dimensional tolerance | ±0.1mm |
| Optical aperture | ≧90% |
| Wavefront distortion | ≦λ/4 @ 633nm |
| Flatness | λ/4 @ 633nm |
| Finish | 20/10 |
| Parallelism | ≦20" |
| Verticality | ≦5 ′ |
| Angular deviation | ＜±0.5° |
