(KTiOAsO4)

KTA

(potassium titanyl arsenate)

KTA

Compound

KTiOAsO4

Transparency range, µm

0.35 – 5.5

Nonlinear coefficient, pm/V

d31= 2.76; d32= 4.74; d33= 18.5

Symmetry

Orthorhombic, mm2 point group

Cell parameters, Å

a=13.103, b=6.558, c=10.746

Typical Reflection indices

1064 nm

532 nm

nx=1.7826, ny=1.7890, nz=1.8677

nx=1.8293, ny=1.8356, nz=1.9309

Optical Damage Threshold, GW/cm2

1064 nm

(t=10 ns)

1.5

Electrooptic coefficients, pm/V

r13=15, r23=21, r33=40

Mohs hardness

5

The parameters of optical elements

Orientation accuracy, arc min< 30<td20/10

Parallelism, arc sec < 30
Flatness 546 nm λ/6
Surface quality, scratch/dig  

Application

  • Optical parametric oscillator (OPO) in middle IR region 1 – 5.5 µm
  • Different frequency generation in middle IR region 1 – 5.5 µm

We are able to provide suitable Anti-reflection / Protective, etc. coatings tailored to customer’s specifications, reflectivity curves are applied upon request.