Inhibition and enhancement of two-photon absorption in a four-level inverted-Y semiconductor quantum well system

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• 作者：Zhiping Wang ; ^{wzping@mail.ustc.edu.cn} ; ^{zhipwang@126.com} ; Benli Yu ; Feng Xu ; Shenglai Zhen ; Xuqiang Wu ; Jun Zhu ; Zhigang Cao
• 刊名：Physica E
• 出版年：2012
• 出版时间：April-May, 2012
• 年：2012
• 卷：44
• 期：7-8
• 页码：1267-1271
• 全文大小：314 K

文摘

We theoretically investigate the features of two-photon absorption in a four-level inverted-Y quantum well system. We find that not only the strengths of applied laser fields but also the total closed interaction phase can affect the two-photon absorption dramatically, which can be used to suppress or enhance two-photon absorption. More importantly, the double electromagnetically induced two-photon transparency can be achieved in this system. Thus, it may provide some new possibilities for technological applications in the two-photon lasing, the pulse propagation, and the two-photon entanglement in solid-state quantum information processing.