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KTA Crystal(KTiOAsO4)
  • KTA Crystal(KTiOAsO4)
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Product Details

KTA Crystal

Potassium Titanyl Arsenate (KTiOAsO4), or KTA crystal, is an excellent nonlinear optical crystal for Optical Parametric Oscillation (OPO) application. It has better non-linear optical and electro-optical coefficients, significantly reduced absorption in the 2.0-5.0 µm region, broad angular and temperature bandwidth, low dielectric constants. And its low ionic conductivities result in higher damage KTiOAsO threshold compared with KTP.



EBETTER offers KTA
•Crystal length from 0.1mm to 30mm and size up to 10x10x30mm
•AR-coating from visible to 3300nm
•Re-polishing, re-coating service
•Fast delivery(10 working days for polished only, 15 working days for AR-coated)

Basic properties
Crystal Structure
Orthorhombic, point group mm2
Lattice Parameter
a=13.125Å, b=6.5716Å, c=10.786Å
Melting Point
1130 ℃
Mohs Hardness
near 5
Density
3.454g/cm3
Thermal Conductivity
K1:1.8W/m/K; K2: 1.9W/m/K; K3: 2.1W/m/K

Optical and Nonlinear Optical Properties
Transparency Range
350-5300nm
Absorption Coefficients
@ 1064 nm<0.05%/cm
@ 1533 nm<0.05%/cm
@ 3475 nm<5%/cm
NLOSusceptibilities (pm/V)
d31= 2.76,d32= 4.74,d33= 18.5 , d15= 2.3, d24= 3.2
Sellmeier Equation
Ni2=Ai+Biλ2/(λ2-Ci2)-Diλ2
(λ in μm)

index
A
B
C
D
nx
1.90713
1.23522
0.19692
0.01025
ny
2.15912
1.00099
0.21844
0.01096
nz
2.14768
1.29559
0.22719
0.01436
Electro-optical Constants (pm/V) (low frequency)
r33=37.5;r23=15.4;r13=11.5
SHG Phase Matchable Range
1083~3789nm
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