微腔声子极化激元——一种相干的光-微波接口
Microcavity phonoritons -- a coherent optical-to-microwave interface
AI总结：
本研究在半导体微腔中实现了非绝热光机械控制与可逆光-微波互转，通过激子增强耦合激发声子激光并证实声子极化激元准粒子的产生，确立了零维极化激元凝聚体作为微波与光学域间可扩展相干接口。
摘要：
光机械系统为（量子）网络中的双向光-微波互转提供了途径。我们在结构化半导体微腔中，针对声子与激子-极化激元凝聚体的单个微米级势阱陷阱，展示了该功能及非绝热光机械控制的实现。激子增强的光机械耦合导致了自激振荡（声子激光），从而证明了可逆的光子-声子转换。我们表明，这些振荡是光机械强耦合的标志，预示着难以捕捉的声子-激子-光子准粒子（即声子极化激元）的出现。随后，我们利用电学产生的 GHz 振动与谐振光激光束，演示了对声子极化激元光谱的完全控制以及相干的微波-光子互转。这些发现确立了零维极化激元凝聚体作为微波与光学域之间可扩展的相干接口，具有增强的微波-机械与机械-光学耦合率。
英文摘要：
Optomechanical systems provide a pathway for the bidirectional optical-to-microwave interconversion in (quantum) networks. We demonstrate the implementation of this functionality and non-adiabatic optomechanical control in a single, $μ$m-sized potential trap for phonons and exciton-polariton condensates in a structured semiconductor microcavity. The exciton-enhanced optomechanical coupling leads to self-oscillations (phonon lasing) -- thus proving reversible photon-to-phonon conversion. We show that these oscillations are a signature of the optomechanical strong coupling signalizing the emergence of elusive phonon-exciton-photon quasiparticles -- the phonoritons. We then demonstrate full control of the phonoriton spectrum as well as coherent microwave-to-photon interconversion using electrically generated GHz-vibrations and a resonant optical laser beam. These findings establish the zero-dimensional polariton condensates as a scalable coherent interface between microwave and optical domains with enhanced microwave-to-mechanical and mechanical-to-optical coupling rates.
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