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Abstract

Nonlinear optical materials, methods of crystal growth, and devices employing such materials satisfy the general formula (.SIGMA..sub.i=1-3 M.sub..alpha.i.sup.1)(.SIGMA..sub.j=1-3 M.sub..beta.j.sup.2)(.SIGMA..sub.k=1-6 M.sub..gamma.k.sup.3)B.sub.14 O.sub.25 Formula 1 wherein M.sup.1, M.sup.2, and M.sup.3 are mono-, di, or tri-valent metal ions respectively; wherein (.SIGMA..sub.i=1-3.alpha..sub.i)=X and ranges from 0 to 2, (.SIGMA..sub.j=1-3.beta..sub.j)=Y and ranges from 0 to 4, and (.SIGMA..sub.k=1-6.gamma..sub.k)=Z and ranges from 0 to 2, and wherein X+Y+Z=4.0. Other nonlinear optical compounds according to this invention also generally satisfy Formula 2 through 7 below: (.SIGMA..sub.j=1-3 M.sub..beta.j.sup.2)B.sub.14 O.sub.25, where (.SIGMA..sub.j=1-3.beta..sub.j)=4 Formula 2 M.sub.4.sup.2 B.sub.14 O.sub.25 Formula 3 (.SIGMA..sub.i=1-3 M.sub..alpha.i.sup.1)(.SIGMA..sub.k=1-6 M.sub..gamma.k.sup.3)B.sub.14 O.sub.25 Formula 4 where (.SIGMA..sub.i=1-3.alpha..sub.i)=2, and (.SIGMA..sub.k=1-6.gamma..sub.k)=2. M.sub.2.sup.1 M.sub.2.sup.3 B.sub.14 O.sub.25 Formula 5 (.SIGMA..sub.i=1-3 M.sub..alpha.i.sup.1)(.SIGMA..sub.j=1-3 M.sub..beta.j.sup.2)(.SIGMA..sub.k=1-6 M.sub..gamma.k.sup.3)B.sub.14 O.sub.25 Formula 6 where (.SIGMA..sub.i=1-3.alpha..sub.i)=1, (.SIGMA..sub.j=1-3.beta..sub.j)=2, and (.SIGMA..sub.k=1-6.gamma..sub.k)=1. and M.sup.1 M.sub.2.sup.2 M.sup.3 B.sub.14 O.sub.25 Formula 7.

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