| 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 |
Potassium tantalate niobate crystal of extremely high quality is supplied in Stanford Advanced Materials (SAM). We customize the size and shape of KTN crystals based on the design of the customer’s device.
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 erectro-opotic (EO) 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.
|
Chemistry |
(KTa 1-X NbXO3) x=~0.35 |
|
Crystal growth method |
Top seed flux growth |
|
Crystal Structure |
Cubic, Perovskite, a = 3.990A |
|
Melting point |
~1350 oC |
|
Curie Temperature |
20- 30 oC |
|
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 |
Potassium tantalate niobate crystal is used in the following applications:
– KTN Deflector
– 200kHz OCT wavelength swept light
– Veri-focal lens
– Optical modulator
– Various experiments application (chip, device)
Submit your review | |
It is a very good quality product. Has been working well since the day it was used.
