We report a new all-optical switching in a two-dimensional photonic crystal microcavity made of semiconductor multiple quantum wells and realized based on the electromagnetically induced transparency effect with exciton and two-exciton energy levels. We use the quantum coherence effects to achieve small absorption of the probe field, and the absorption of the probe field can be adjusted by controlling the pump field and decay rate. We turn the control field into pulses of light field so that we can regulate the efficiency of the switch. Through selecting the appropriate control light field intensity, we can obtain a switching efficiency of 85% and a switching time is 10 ps. This result can be used for the development of new types of nanoelectronic devices for realizing the switching process.

中文翻译：

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基于有源光子晶体微腔的电磁感应透明效应的全光开关

我们报告了一种在由半导体多量子阱制成的二维光子晶体微腔中的新型全光开关，该微腔是基于具有激子和双激子能级的电磁感应透明效应实现的。我们利用量子相干效应实现探测场的小吸收，通过控制泵浦场和衰减率可以调节探测场的吸收。我们将控制场转换为光场脉冲，以便我们可以调节开关的效率。通过选择合适的控制光场强度，我们可以获得85%的开关效率和10 ps的开关时间。该结果可用于开发实现开关过程的新型纳米电子器件。