Scalable interconnections for remote indirect exciton systems based on acoustic transport
Scalable interconnections for remote indirect exciton systems based on acoustic transport
复制标题
基于声学传输的远程间接激子系统的可扩展互连
DOI：
10.1103/physrevb.89.085313
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发表时间：
2014
影响因子：
3.7
通讯作者：
P. V. Santos
中科院分区：
文献类型：
--
作者：
S. Lazic;A. Violante;K. Cohen;R. Hey;R. Rapaport;P. V. Santos
激子是由电子-空穴对通过库仑相互作用形成的准粒子，是固态光子信息处理的潜在介质。通过激子的信息处理需要有效的技术来传输和操纵这些不带电的粒子。我们对GaAs量子威尔斯中激子的声表面波输运进行了详细的研究。基于这些结果，我们在这里介绍了一个概念的互连的多个远程激子系统的基础上的偶极激子的长程运输的可配置的互连网络驱动的声波束。通过结合这个网络与静电门，我们展示了一个集成的激子多路复用器能够互连，门控和路由激子系统分开毫米的距离。多路复用器提供了一个可扩展的平台，用于操纵激子流体，在信息处理中具有潜在的应用。
Excitons, quasiparticles consisting of electron-hole pairs bound by the Coulomb interaction, are a potential medium for the processing of photonic information in the solid state. Information processing via excitons requires efficient techniques for the transport and manipulation of these uncharged particles. We have carried out a detailed investigation of the transport of excitons in GaAs quantum wells by surface acoustic waves. Based on these results, we introduce here a concept for the interconnection of multiple remote exciton systems based on the long-range transport of dipolar excitons by a network of configurable interconnects driven by acoustic wave beams. By combining this network with electrostatic gates, we demonstrate an integrated exciton multiplexer capable of interconnecting, gating, and routing exciton systems separated by millimeter distances. The multiplexer provides a scalable platform for the manipulation of exciton fluids with potential applications in information processing.