KTaO<sub>3</sub> Potassium Tantalate Crystal Substrates, MSE Supplies

KTaO₃ Potassium Tantalate Crystal Substrates

$ 119⁰⁰

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Product Name	Potassium Tantalate Crystal Substrates
Formula	KTaO₃
Purity (%)	99.99
CAS Number	12030-91-0
Molecular Weight	268.043 g/mol
Point group	m3m
Cell parameters	0.3984nm
Melting point	1352.2 °C
Density	7.025 g/cm³
Mohs hardness	6
Growth method	Czochralski method, TSSG method
Refractive index	2.226@633nm, 2.152@1539nm
Coefficient of thermal expansion	4.027 x 10^-6/K
Thermal conductivity (W/m.K at 300K))	0.17
Specific heat (J/(K g)	0.378
Transparent wavelength range (nm)	380~4000
Crystal orientation	(100), (110), (111)
Sizes	10x10x0.5mm, 5x10x0.5mm, 5x5x0.5mm, other sizes are available upon request
Surface polishing	Single side polishing (SSP) or double side polishing (DSP)
Surface roughness	Epitaxial ready surface Ra < 1 nm after CMP

References:

Optical Constants of Evaporated Gold and Platinum Films on Potassium Tantalate

VL Rideout, SH Wemple - JOSA, 1966 - osapublishing.org

Preparation of potassium tantalate niobate thin films by chemical solution deposition and their characterization

J Bursik, V Zelezny, P Vanek - Journal of the European Ceramic Society, 2005 - Elsevier

Preparation and infrared characterization of potassium tantalate thin films

V Zelezny, J Bursik, P Vanek - Journal of the European Ceramic Society, 2005 - Elsevier

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