CY2425 Potassium Tantalate Niobate Crystal, KTN Crystal

Catalog No.	CY2425
Size	Custom size with 2-sided or 4 sided mirror polish
Material	Potassium Tantalate Niobate, KTN
Crystal Structure	Cubic, Perovskite
Growth Method	Top seed flux growth
EO Effect	S11~＝3.0×10-15　m2/V2, ex：δn~0.003, *1 (>20 x that

Potassium tantalate niobate crystal of extremely high quality is supplied in Stanford Advanced Materials. We customize the size and shape of KTN crystals based on the design of the customer's device.

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CY2425 Potassium Tantalate Niobate Crystal, KTN Crystal

Description

Specification

Potassium Tantalate Niobate Crystal Description

Potassium tantalate niobate crystals are always produced by NTT-AT even though the fabrication process has been considered difficult. KTN crystals are the optical crystal with the maximum electrooptic effects among existing materials.

It has been known since the 1950s that potassium tantalate niobate crystal has a very large electro-optic effect; that is, its refractive index is changed greatly by a comparatively low applied voltage. To be used as an optical device, the KTN must be a single crystal so that the incident light does not scatter.

The giant electro-optic effect of potassium tantalate niobate (KTN) crystal has been exploited.

Potassium Tantalate Niobate Crystal Specifications

Chemistry	(KTa _1-X Nb_XO3)_x =~0.35
Crystal growth method	Top seed flux growth
Crystal Structure	Cubic, Perovskite, a = 3.990A
Orientation	<100> +/-0.5°
Melting point	~1350℃
Curie Temperature	20- 30℃
Density	7.015 g / cc
Thermal conductivity	0.17 w/m.k at 300k
Linear Eelectric - Optical Coeff	r₃₃ : > 600 pm/V
Refractive index	2.234
Coercive Field	Ec = 250 V/mm
Transmission Range	400 nm - 4000 nm