Advances in Quantum Metrology with Dielectrically Structured Single Photon Sources Based on Molecules

IF 4.4 Q1 OPTICS
Pietro Lombardi, Hristina Georgieva, Franziska Hirt, Juergen Mony, Rocco Duquennoy, Ramin Emadi, Maria Guadalupe Aparicio, Maja Colautti, Marco López, Stefan Kück, Costanza Toninelli
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Abstract

In the realm of fundamental quantum science and technologies, non-classical states of light, such as single-photon Fock states, are widely studied. However, current standards and metrological procedures are not optimized for low light levels. Progress in this crucial scientific domain depends on innovative metrology approaches, utilizing reliable devices based on quantum effects. A new generation of molecule-based single-photon sources is presented, combining their integration in a polymeric micro-lens with pulsed excitation schemes, thereby realizing suitable resources in quantum radiometry. The strategy enhances the efficiency of generated single photon pulses and improves stability, providing a portable source at 784.7 nm that maintains consistent performance even through a cooling and heating cycle. The calibration of a single-photon avalanche detector is demonstrated using light sources with different photon statistics, and the advantages of the single-molecule device are discussed. A relative uncertainty on the intrinsic detection efficiency well below 1% is attained, representing a new benchmark in the field.

Abstract Image

基于分子的介质结构单光子源在量子计量学方面的进展
在基础量子科学和技术领域,单光子 Fock 状态等非经典光状态被广泛研究。然而,目前的标准和计量程序并没有针对低光照水平进行优化。这一关键科学领域的进展取决于利用基于量子效应的可靠设备的创新计量方法。本文介绍了新一代基于分子的单光子源,将其集成在聚合物微透镜中,并采用脉冲激发方案,从而在量子辐射测量中实现合适的资源。该策略提高了生成单光子脉冲的效率,并改善了稳定性,提供了一种 784.7 nm 波长的便携式光源,即使在冷却和加热循环中也能保持稳定的性能。利用不同光子统计量的光源演示了单光子雪崩探测器的校准,并讨论了单分子设备的优势。本征检测效率的相对不确定性远低于 1%,是该领域的一个新基准。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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CiteScore
7.90
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