里德堡原子无线电波传感器的出现正在推动现代传感和测量方式的转变，利用量子效应实现经典无线电波测量无法比拟的全新探测能力。本文回顾了基于里德堡原子的无线电波测量进展，梳理了领域发展脉络，详细介绍了无线电波测量灵敏度极限并展望了未来的发展趋势。该研究将助力领域的发展以及工程应用的推进。
原子 里德堡 无线电波 灵敏度 激光与光电子学进展
2023, 60(11): 1106010
Author Affiliations
Abstract
1 State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China
2 Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
Enhancing light–matter interaction in cavity quantum electrodynamics has aroused widespread interests in on-chip quantum information processing. Here, we propose a hybrid nanotoroid–nanowire system to enhance photon–exciton interaction. A nanoscale gap is formed by placing a dielectric nanowire close to a dielectric nanotoroid, where the coupling coefficient between photon and emitter can achieve 5.55 times of that without nanogap. Meanwhile, the cavity loss and spontaneous emission of the emitter will remain at a small value to guarantee the realization of strong coupling. The method might hold promise for the research of nanophotonics, quantum optics, and novel optical devices.
270.5580 Quantum electrodynamics Chinese Optics Letters
2019, 17(3): 032702
采用掺铒光子晶体光纤代替传统掺铒光纤来提高超荧光光纤光源输出的功率稳定性和平均波长稳定性。在-45℃~70℃的全温区范围内，对超荧光光纤光源的光纤长度和半导体激光器(LD)抽运功率进行优化，并提出了用插值法进行LD抽运功率的优化方法，在光纤长度优化的基础上，高效、精确地优化了抽运功率，改善了光源的平均波长稳定性。经过优化的光源，在-45℃~70℃的全温区范围内平均波长变化量为0.67×10-6 /℃，输出功率稳定性为0.37%。
光纤光学 超荧光光纤光源 平均波长稳定性 光子晶体光纤
