基于量子存储器的时频处理器实现光域光谱超分辨
Optical-domain spectral super-resolution via a quantum-memory-based time-frequency processor
摘要：
现有的光学成像超分辨率方法在自然科学中的应用占有坚实的地位，但许多新的发展允许以更微妙的方式击败衍射极限。最近探索的充分利用该领域现有信息的策略之一是执行量子启发的定制测量。在这里，我们利用光场的全光谱信息，以击败瑞利极限光谱。我们采用了一个光量子存储器与自旋波存储和嵌入式处理能力，实现输入光的时间反演干涉仪，投影的光场的反对称模式的基础上。我们量身定制的测量实现了15 kHz的分辨率，所需的光子比相应的瑞利限制的传统方法少20倍。我们证明了我们的技术的优势，在传统的光谱和外差测量，显示潜在的应用程序中区分超窄带发射器，光通信信道，或从低频域转换的信号。
英文摘要：
Existing super-resolution methods of optical imaging hold a solid place as an application in natural sciences, but many new developments allow for beating the diffraction limit in a more subtle way. One of the recently explored strategies to fully exploit information already present in the field is to perform a quantum-inspired tailored measurements. Here we exploit the full spectral information of the optical field in order to beat the Rayleigh limit in spectroscopy. We employ an optical quantum memory with spin-wave storage and an embedded processing capability to implement a time-inversion interferometer for input light, projecting the optical field in the symmetric-antisymmetric mode basis. Our tailored measurement achieves a resolution of 15 kHz and requires 20 times less photons than a corresponding Rayleigh-limited conventional method. We demonstrate the advantage of our technique over both conventional spectroscopy and heterodyne measurements, showing potential for application in distinguishing ultra-narrowband emitters, optical communication channels, or signals transduced from lower-frequency domains.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
