Fully integrated quantum photonic circuit with an electrically driven light source
Fully integrated quantum photonic circuit with an electrically driven light source
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DOI：
10.1038/nphoton.2016.178
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发表时间：
2016-11-01
期刊：
影响因子：
35
通讯作者：
Pernice, Wolfram H. P.
中科院分区：
文献类型：
--
作者：
Khasminskaya, Svetlana;Pyatkov, Felix;Pernice, Wolfram H. P.
光子量子技术允许量子现象在量子密码学、量子模拟和量子计算等应用中得到利用。实用设备的一个关键要求是单光子源、探测器和线性光学元件在一个通用平台上的可扩展集成。纳米光子电路可以实现复杂的线性光学系统，而非经典光可以用波导集成探测器进行测量。然而，对于完全集成的系统来说，具有高亮度和与光子器件兼容的可重复单光子源仍然是难以实现的。在这里，我们报告了从嵌入光子量子电路中的电驱动碳纳米管发出的光中观察到的反束现象。利用波导集成超导单光子探测器在低温条件下记录芯片上产生的非经典光，无需光学滤波。由于采用了完全可扩展的制造和沉积方法，我们的研究结果表明碳纳米管是混合量子光子器件中有前途的纳米单光子发射器。
Photonic quantum technologies allow quantum phenomena to be exploited in applications such as quantum cryptography, quantum simulation and quantum computation. A key requirement for practical devices is the scalable integration of single-photon sources, detectors and linear optical elements on a common platform. Nanophotonic circuits enable the realization of complex linear optical systems, while non-classical light can be measured with waveguide-integrated detectors. However, reproducible single-photon sources with high brightness and compatibility with photonic devices remain elusive for fully integrated systems. Here, we report the observation of antibunching in the light emitted from an electrically driven carbon nanotube embedded within a photonic quantum circuit. Non-classical light generated on chip is recorded under cryogenic conditions with waveguide-integrated superconducting single-photon detectors, without requiring optical filtering. Because exclusively scalable fabrication and deposition methods are used, our results establish carbon nanotubes as promising nanoscale single-photon emitters for hybrid quantum photonic devices.