嵌套量子阱中超高频重复率光学半周期脉冲串的产生
Generation of an ultrahigh-repetition-rate optical half-cycle pulse train in the nested quantum wells
AI总结：
提出嵌套量子阱结构，在静电场驱动下产生飞秒级半周期脉冲串，重复频率达数十太赫兹，可作为超紧凑亚周期光学脉冲源。
摘要：
我们提出了一种简单的量子系统，即嵌套量子阱结构，在静电场驱动下能够产生持续时间仅几飞秒的半周期脉冲串。我们从理论上研究了该结构的发射特性及其对量子阱参数的依赖关系。研究表明，在特定参数范围内，可以产生具有可调特性且脉冲重复频率达数十太赫兹的规则输出脉冲串。我们预期所提出的结构可用作光学波段亚周期脉冲的超紧凑源。
英文摘要：
We propose a simple quantum system, namely, a nested quantum-well structure, which is able to generate a train of half-cycle pulses of a few-fs duration, when driven by a static electric field. We theoretically investigate the emission of such a structure and its dependence on the parameters of the quantum wells. It is shown that the production of a regular output pulse train with tunable properties and the pulse repetition frequencies of tens of THz is possible in certain parameter ranges. We expect the suggested structure can be used as an ultra-compact source of subcycle pulses in the optical range.
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