Potassium Titanyle Arsenate(KTiOAsO4)

Short Description:

Potassium Titanyle Arsenate(KTiOAsO4), or KTA crystal, is an excellent nonlinear optical crystal for Optical Parametric Oscillation (OPO) application.


Product Detail

Product Tags

Features

● Large nonlinear optical coefficients;

● Wide angular bandwidth and small walk-off angle;

● Broad temperature and spectral bandwidth;

● Large electro-optic coefficients;

● Lower absorption in the 3-4 μm range than KTP;

● Nonhydroscopic, chemically and mechanically stable;

● High thermal conductivity;

● High damage threshold.

Applications

● Second harmonic generation (SHG);

● Sum and difference frequency generation (SFG)/(DFG);

● Optical parametric oscillation/ amplification (OPO/OPA);

● Electro-optical Q-switching.

Structural and Physical Properties

Crystal Structure Orthorhombic, space group Pna21, point group mm2
Cell Parameters a=13.125Å, b=6.5716Å, c=10.786 Å, Z=8
Melting Point 1130℃
Curie Point 880℃
Mohs Hardness  ~ 5
Density 3.45 g/cm3
Color colorless
Hygroscopic Susceptibility No
Specific Heat 0.687 J/g/K
Thermal Conductivity 1.8 W/m/K
Electrical Conductivity 0.7-3.4 x10-6 s/cm (c-axis, @22℃, 1KHz)

Optical and Nonlinear Optical Properties

TransparencyRange 350-5300nm
Absorption Coefficients @ 1064 nm <0.05 %/cm
@ 1533 nm <0.05 %/cm
@ 3475 nm <5%/cm
NLO susceptibilities(pm/V) d31 = 2.76, d32 = 4.74, d33 = 18.5 , d15 = 2.3, d15 = 3.2
index A B C D
Sellmeier Equation Nx 1.90713 1.23522 0.19692 0.01025
Ni2=Ai+Biλ2/(λ2-Ci2)-Diλ2(λin um) Ny 2.15912 1.00099 0.21844 0.01096
Nz 2.14768 1.29559 0.22719 0.01436
Electro-optical constants(pm/V) γ33=37.5; γ23=15.4; γ13=11.5
(low frequency)
SHG Phase Matchable Range 1083-3789nm

Specifications

Wavefront distortion less than λ/4 @ 633 nm
Dimension tolerance (W +/- 0.1 mm) x (H +/- 0.1 mm) x (L + 0.2 mm/-0.1mm)
Clear aperture > 90% central area
Flatness λ/8 @ 633 nm
Surface Quality 10/5 Scratch/Dig
Parallelism better than 20 arc seconds
Perpendicularity 5 arc minutes
Angle tolerance Dq< +/-0.25, Df< +/-0.25

  • Previous:
  • Next:

  • Write your message here and send it to us