Excitability in a nematic liquid crystal cell in a Fabry-Perot was confirmed.When this system has spacial extensions, spirals and other patterns were obtained.

• 证实了法布里-泊罗标准具中向列液晶的可激性，当系统具有空间延展性时，得到了螺旋波以及不同的斑图的形成。