弹丸噪声对基于相位奇点的折光传感器性能的影响

IF 6.6 2区 物理与天体物理 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Valeria Maslova, Georgy Ermolaev, Evgeny S. Andrianov, Aleksey V. Arsenin, Valentyn S. Volkov, Denis G. Baranov
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引用次数: 0

摘要

光学响应函数的拓扑奇异性——例如反射振幅——使得从模拟信号处理到新型分子传感方法的各种优雅的实际应用成为可能。基于相位奇点的折射传感器监测相位奇点附近光场的快速变化,而传统表面等离子体激元传感器的反射为零。这就提出了一个自然的问题:当这种传感器的灵敏度和分辨率接近响应函数的零时,检测到的信号可能受到各种噪声源的极大影响,会发生什么?本文系统地研究了弹丸噪声对基于相位奇点的普通折光传感器性能的影响。我们建立了一个运行在相位奇点附近的光谱椭偏系统的理论模型,并将探测的宏观光学图像与量子散粒噪声模型耦合在一起。在建立的模型中,我们说明了探测器的弹射噪声是如何起作用的,并研究了它对折射传感器的灵敏度和分辨率的影响。我们的研究结果表明,即使在零反射点附近存在散粒噪声的情况下,这种基于椭圆偏振计的相位奇点传感器仍然保持稳定。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The influence of shot noise on the performance of phase singularity-based refractometric sensors
Topological singularities of optical response functions – such as reflection amplitudes – enable elegant practical applications ranging from analog signal processing to novel molecular sensing approaches. A phase singularity-based refractometric sensor monitors the rapidly evolving argument of the optical field near the point of phase singularity, in contrast to the reflection zero in traditional surface plasmon polariton sensors. This raises a natural question: What happens with the sensitivity and resolution of such a sensor when it operates close to a zero of the response function, where the detected signal may be greatly influenced by various noise sources? In this paper, we systematically study the effect of the shot noise on the performance of a generic phase singularity-based refractometric sensor. We develop a theoretical model of a spectroscopic ellipsometry-based system operating near a phase singularity and couple the macroscopic optical picture of the detection with a quantum shot noise model. Within the developed model, we illustrate how the shot noise of the detector comes into play and study its effect on the sensitivity and resolution of the refractometric sensor. Our results suggest that such an ellipsometry-based phase singularity sensor remains stable even in the presence of shot noise near the point of zero reflection.
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来源期刊
Nanophotonics
Nanophotonics NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
13.50
自引率
6.70%
发文量
358
审稿时长
7 weeks
期刊介绍: Nanophotonics, published in collaboration with Sciencewise, is a prestigious journal that showcases recent international research results, notable advancements in the field, and innovative applications. It is regarded as one of the leading publications in the realm of nanophotonics and encompasses a range of article types including research articles, selectively invited reviews, letters, and perspectives. The journal specifically delves into the study of photon interaction with nano-structures, such as carbon nano-tubes, nano metal particles, nano crystals, semiconductor nano dots, photonic crystals, tissue, and DNA. It offers comprehensive coverage of the most up-to-date discoveries, making it an essential resource for physicists, engineers, and material scientists.
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