Description
Introduction
Lithium Iodate (LiIO3) is one of oldest commercial NLO crystals. With high NLO coefficient, LiIO3 is used for frequency-doubling, tripling and mixing of low and medium power lasers. We provides large size of LiIO3 crystals with high optical homogeneity. They can be as-cut or polished, and sealed housing with AR-coated windows is also available.
Basic Properties
| Crystal Structure | Hexagonal, Point Group 6 |
| Transparency Range | 300-5000 nm |
| Nonlinear Coefficient | d15 = – 5.5 × 10-12 m/V |
| Refractive Index | negative uniaxial
no = 1.8571, ne = 1.7165 (λ = 1064 nm) |
| Sellmeier Equations: (λ in μm)
no2 = 3.415716 + 0.047031 / (λ2 – 0.035306) – 0.008801 λ2 ne2 = 2.918692 + 0.035145 / (λ2 – 0.028224) – 0.003641 λ2 |
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Specifications
| Dimension Tolerance | (W ± 0.2 mm) × (H ± 0.2 mm) × (L + 0.5/-0.2 mm) |
| Clear Aperture | central 90% of the diameter |
| Surface Quality (Scratch/Dig) | 20/10 to MIL-PRF-13830B |
| Flatness | λ/4 @633 nm |
| Transmitted Wavefront Distortion | ≦ λ/4 @633 nm |
| Parallelism | ≦ 30 arc sec |
| Perpendicularity | ≦ 15 arc min |
| Angle Tolerance | ≦ 0.5° |
| Quality Warranty Period | one year under proper use. |
Notes
- LiIO3 is highly hygroscopic.
- Please keep it in a dry environment, and sealed housing is recommended.
- We provides both polishing and sealed housing for LiIO3 crystal.
- LiIO3 is not recommended for high power applications, because of the low damage threshold.
