Light modulation driven by light of dual sub-bands

具有DSB结构的ii型ZnSe-ZnTe超晶格具有光调制效应。超晶格由两种周期组成，并具有两种基本状态，例如1.8和2.1 eV，这取决于8k时的结构。除去衬底部分（约1 mmφ）的样品透射少量（1.96 eV） He-Ne激光。在光子能量大于1.96 eV的激光照射下，透射光强度增加约10%。

Type-II ZnSe-ZnTe superlattices with DSB structure show light modulation effects. The superlattices consist of two kinds of period and have two fundamental states at, for instance, 1.8 and 2.1 eV that depend on the structure at 8 K. The samples the substrates of which are removed a part (about 1 mmφ) transmit a little the light of the He-Ne laser (1.96 eV). The intensity of the transmitted light increases by about 10% under exposure to laser lights the photon energy of which is higher than 1.96 eV.