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    • 5. 发明申请
    • NONLINEAR OPTICAL (NLO) CRYSTALS WITH A BERYLLIUM OXIDE (BEO2) STRUCTURE
    • 具有氧化铝(BEO2)结构的非线性光学(NLO)晶体
    • WO02068731A3
    • 2002-11-07
    • PCT/US0204701
    • 2002-02-19
    • REYTECH CORP
    • REYNOLDS THOMASALEKEL THEODOREKESZLER DOUGLAS A
    • C01F3/00C01F3/02G02F1/355G02B1/00
    • C01F3/00C01F3/02G02F1/3551
    • In one embodiment of the presetn invention, the material is a non-linear optical compound with a beryllium oxide (BeO2) framework or superstructure. This new NLO materical as the general chemical formula (1) ( SIGMA i=1-3M alpha i )( SIGMA j=1-3 M beta j )BeO wherein M1 and M2 are mono- and di-valent metal ions respectively; wherein ( SIGMA i=1-3 alpha i)= X and ranges from 0 to 2, ( SIGMA j=1-3 beta j) = Y and ranges from 0 to 1, (hereinafter referred to as "MBEO" compounds). Another embodiment of the present invention satisfies the generally formula (2) ( SIGMA i=1-3M alpha i ) beta eO2, wherein M is a mono-valent metal ion; and wherein ( SIGMA i=1-3 alpha i) = X and ranges from 0 ti 2; and yet antoher embodiment of the present invention satifies the general formula (3) ( SIGMA j=1-3 M beta j )BeO2, wherein M is a di-valent metal ion; and wherein ( SIGMA j=1-3 beta j) = Y and ranges from 0 to1. Mono- and di-valent metal ions, M and M , that are suitable from forming compounds satisfying the gernal formula are preferably independently selected form the group consisting of Groups IA and IIA, however other mono- and di-valent cations amy be used so long as thematerial has a non-centrosymmetric arrangemnt. The best results are achieved by independently selecting M for mthe group consisting of magnesium, calcium, and strontium.. Examples of nonlinear optical materials satisfying the general formula include, but are not limited to , Na2BeO2, Li2BeO2, K2BeO2, and Cs2BeO2.
    • 在本发明的一个实施方案中,该材料是具有氧化铍(BeO 2)骨架或上层结构的非线性光学化合物。 这种新的NLO材料作为一般化学式(1)(SIGMA i =1-3Mαi 1)(SIGMA j = 1-3Mβj 2)BeO 2,其中M1和M2是单 - 和二价金属离子; 其中(SIGMA i =1-3αi)= X且范围为0至2,(SIGMA j =1-3βj)= Y且为0至1(以下称为“MBEO”化合物)。 本发明的另一个实施方案满足通式(2)(SIGMA i =1-3Mαi 1)βeO 2,其中M 1是一价金属离子; 并且其中(SIGMA i =1-3αi)= X并且范围为0 ti 2; 本发明的另一个实施方案使通式(3)(SIGMA j = 1-3 Mβj 2)BeO 2饱和,其中M 2是二价金属离子; 并且其中(SIGMA j =1-3βj)= Y并且范围为0至1。 优选独立地选自IA和IIA组的单独和二价金属离子M 1和M 2适合于形成满足该式式的化合物,然而其它单 - 和二 - 只要材料具有非中心对称排列,就可以使用价格阳离子。 满足通式的非线性光学材料的实例包括但不限于Na 2 BeO 2,Li 2 BeO 2,K 2 B 2 O 2和Cs 2 BeO 2,通过对由镁,钙和锶组成的组独立地选择M 1来实现最佳结果。 。