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    • 1. 发明申请
    • OPTICAL SWITCHES
    • 光开关
    • WO1991012555A2
    • 1991-08-22
    • PCT/GB1991000184
    • 1991-02-06
    • BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANYWINTER, Christopher, SimonOLIVER, Stephen, NigelRUSH, James, DouglasUNDERHILL, Allan, EdwardHILL, Callum, Aidan, Stephen
    • BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
    • G02F01/35
    • C08G79/00G02F1/3132G02F1/3515G02F1/3619
    • The specification identifies dithiolenes which give good performance as the critical region of an optical switch. The dithiolenes have the formula shown in Figure 1 wherein: (A) the R groups, any two of which may be the same or different, are selected so as to tune the absorption bands of the molecule for use at the operational wavelength and/or to act as bridges to join molecules together; (B) the X groups, any two of which may be the same or different, are selected from S and Se; (C) M is selected from Ni, Pt, Pd and Cu; (D) C = -1 or 0; and (E) (i) when C = -1, Y is a cation to render the molecule electrically neutral; preferably Y is selected from ammonium, substituted ammonium, Na , Li and K , (ii) when C = 0, Y is absent (since the molecule is neutral there is no change to balance). The dithiolene may be diluted with an organic polymer selected from polyacrylates, polymethacrylates, such as polymethymethacrylate , polycarbonates, polyisobutylene, polyethylene terephthalate, polystyrene and polysiloxane.
    • 该规范确定了作为光开关的关键区域具有良好性能的二硫戊烯。 二硫戊烯具有如图1所示的配方,其中:(A)R基团,其任何两个可以相同或不同,以调节分子的吸收带在工作波长和/或 作为连接分子的桥梁; (B)其中两个可以相同或不同的X基团选自S和Se; (C)M选自Ni,Pt,Pd和Cu; (D)C = -1或0; 和(E)(i)当C = -1时,Y是使分子电中性的阳离子; 优选Y选自铵,取代铵,Na +,Li +和K +,(ii)当C = 0时,Y不存在(因为分子是中性的,所以平衡没有变化)。 可以用选自聚丙烯酸酯,聚甲基丙烯酸酯,聚甲基丙烯酸甲酯,聚碳酸酯,聚异丁烯,聚对苯二甲酸乙二醇酯,聚苯乙烯和聚硅氧烷的有机聚合物稀释二硫醇。