KTA | SIMTRUM Photonics Store

Material

KTA

Dimensional Tolerance(mm)

±0.1

Surface Quality

10/5

Flatness

<λ/6@633nm

Wavefront Distortion

λ/8

Parallelism(arcsec)

<20

Damage Threshold(pulsed)

500MW/cm² (1064nm, 10ns, 10Hz)

Crystal structure

orthorhombic

Point Group

mm2

Space group

Pna2₁

Lattice constants, Å

a = 13.125, b = 6.5716, c = 10.786

Density

3.45

Melting point, °C

1130

Mohs hardness

5

Thermal conductivity, W/m×K

k₁ = 1.8, k₂ = 1.9, k₃ = 2.1

Not hygroscopic

Nonlinear and Optical Properties

350–5300 nm

n_x² = 1.90713 + 1.23522 × λ² /(λ² – 0.196922²) – 0.01025 × λ² 

n_y² = 2.15912 + 1.00099 × λ² /(λ² – 0.218442²) – 0.01096 × λ² 

n_z² = 2.14768 + 1.29559 × λ² /(λ² – 0.227192²) – 0.01436 × λ²

r₃₃ = 37.5 pm/V, r₂₃ = 15.4 pm/V, r₁₃ = 11.5 pm/V

d_eoe = d_oee = d₁₅sin²φ + d₂₄cos²φ

d_oeo = d_eoo = d₂₄sinθ

d₃₁ = 2.3 pm/V, d₃₂ = 3.66pm/V, d₃₃ = 15.5 pm/V, d₂₄ = 3.64pm/V, d₁₅ = 2.3pm/V

>500 MW/cm² for pulses λ = 1064 nm, τ = 10 ns, 10 Hz, TEM₀₀

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