通过本体溶胶-凝胶方法制备了含6′-哌啶-1,3,3-三甲基螺[吲哚-2,3′-[3H]萘-[2,1-b][1,4]噁嗪]的光活性SiO2凝胶.光栅生长曲线显示该光活性凝胶具有快速光响应.在紫外光的预激发下用He-Ne激光器写入光栅时衍射效率的变化规律显示螺噁嗪的光致变色有光致构造异构和光致顺反异构两个竞争过程.通过紫外激发光源的开启和闭合对实时全息光栅的衍射信号进行了调制.
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