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近几十年来,超导单光子探测技术被越来越广泛的应用于量子保密通信与线性光量子计算等重要领域中.其中,基于超导共面波导谐振器的单光子技术以其结构简单,高探测效率及可分辨光子数目等特性吸引了人们越来越多的关注.随着科研工作者对样品制备工艺的不断改进,对选用超导薄膜材料的不断优化,以及对相关背景理论的深入研究,共面波导谐振器单光子探测技术在近几年中取得了巨大的突破.本文将从共面波导谐振器单光子探测器的工作原理,相关理论研究,样品参数设计等方面出发,结合本实验室近期测试得到的实验结果,对共面波导谐振器单光子探测技术的发展近况进行简要的综述.
In recent decades, superconducting single-photon detection technology is more and more widely used in quantum confidential communications and linear optical quantum computing and other important areas.Among them, the single-photon technology based on superconducting coplanar waveguide resonator with its simple structure, High detection efficiency and the number of distinguishable photons attracted more and more attention.With the continuous improvement of the sample preparation technology by researchers, the continuous optimization of the selection of superconducting thin film materials, and the deepening of the relevant background theory Research, coplanar waveguide resonator single-photon detection technology in recent years has made a huge breakthrough.In this paper, from coplanar waveguide resonator single-photon detector working principle, the relevant theoretical research, sample parameter design and so on, combined The experimental results obtained by our laboratory in recent years give a brief overview of the development of coplanar waveguide resonator single photon detection technology.