Enhancing Kerr nonlinearity in an asymmetric double quantum well via Fano interference
Enhancing Kerr nonlinearity in an asymmetric double quantum well via Fano interference
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DOI：
10.1103/physrevb.74.155314
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发表时间：
2006-10
影响因子：
3.7
通讯作者：
Hui Sun;S. Gong;Y. Niu;S. Jin;Ruxin Li;Zhi‐zhan Xu
中科院分区：
文献类型：
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作者：
Hui Sun;S. Gong;Y. Niu;S. Jin;Ruxin Li;Zhi‐zhan Xu
本文研究了非对称GaAs双量子阱中由激发子带向连续带隧穿引起的Fano干涉对Kerr非线性的增强。在我们的结构中，由于Fano干扰，通过适当选择失谐值和泵浦场强度可以增强克尔非线性，同时抵消线性和非线性吸收。
We investigate the enhancement of Kerr nonlinearity in an asymmetric GaAs double quantum well via Fano interference, which is caused by tunneling from the excited subband to the continuum. In our structure, owing to Fano interference, the Kerr nonlinearity can be enhanced by appropriately choosing the values of the detunings and the intensity of the pump field, while cancel the linear and nonlinear absorptions.