Synergistcally doped potassium niobate

Details Synergistcally doped potassium niobate Synergistcally doped potassium niobate

2007-03-19

2010-10-05

Pert, Evan (Department: 2826)

Active solid-state devices (e.g., transistors, solid-state diode

With specified dopant

C117S002000, C257SE29105

Reexamination Certificate

active

07808080

ABSTRACT:
The present invention provides a photorefractive potassium niobate (KNbO3) crystal including a first impurity added substitutionally to the niobium (Nb) site and a second impurity added substitutionally to the potassium (K) site, wherein the first and second impurities are different. There is also provided a method of making the codoped potassium niobate crystal (KNbO3) of the present invention wherein the method includes adding at least one of the impurities to a melt composition during crystal growth, adding at least one of the impurities into an existing crystal using thermal diffusion, and/or adding at least one of impurities into an existing crystal using electrically assisted diffusion.

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