LiIO3

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Lithium Iodate (LiIO3) crystals are negative uniaxial crystals with high nonlinear optical coefficients and a wide range of transparency, resistant to radiation damage characteristics. It can be used in nonlinear acoustic-optical and piezoelectric applications, in 347 nm ruby lasers, as a medium for second harmonic and parametric oscillations, and as a narrow pulse, broadband ultrasonic transducer. It can also be used as a diode, triplet, and mixer for low to medium-power lasers.

Features of Lithium Iodate (LiIO3) Crystals:

  • Wide transparent range
  • Low damage threshold
  • High nonlinear optical coefficient
  • Wide range of phase matching
  • Applied to low and medium power lasers
  • Good temperature stability of refractive index

材料规格

Transmitted Wavefront Distortion
> λ/4 @ 633 nm
OD Tolerance(W±0.2mm) x (H±0.2 mm) x (L+0.5 /-0.2mm)
Clear Aperture
> 90% central area
Flatness
λ/4 @ 633 nm
Surface Finish
20/10 to MIL-PRF-13830B
Parallelism
> 20‘’
Perpendicularity
5’
Angle Tolerance
<±0.5°

物化性质

Crystal Structure
Hexagonal，uniaxial negative crystal
Point Group6
Melting Point
420℃
Density
4.487 g/cm3
Mohs Hardness
3.5–4.0
Transparency range280–4000nm
Absorption Coefficient @1064 nm,< 0.05cm-1
Refractive Index @ 1064 nmno = 1.8571, ne = 1.7165
Refractive Index @800 nmno = 1.8676, ne = 1.7245
Refractive Index @532 nmno = 1.8982, ne = 1.7480
Type 1 SHG Phase Matching Range570–4000nm
Type 1 SHG Acceptability @1064 nm
                         Angle, mrad×cm0.77
                         Spectrum, cm-1×cm12.74
Type 1 SHG Walk-off Angle @1064 nm, mrad74.3
Nonlinear Coefficient
d31=4.4 pm/V(@1064 nm)
Effective Nonlinearitydeff = 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

光谱

nonlinear crystal LiIO3 phase matching-CRYLINK
LiIO３ second harmonic phase matching

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