Using the phototransmission spectrum technique, we have measured the phototransmissionspectra from In_xGa_(1-x)As/GaAs single quantum well samples. The clear modulation structureof different excitons in InGaAs well has been got.

• 我们采用光调制透射方法从In_xGa_(1-x)As/GaAs单量子阱样品测量了调制透射谱；得到了InGaAs量子阱中激子的清晰的调制结构.