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Optimizing the localization precision in coherent scattering microscopy using structured light

delete2025-11-01
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PRE
AI
U
Ulrich Hohenester *
F
Felix Hitzelhammer
G
Georg Krainer
P
Peter Banzer
T
Thomas Juffmann
DOI:10.1515/nanoph-2025-0435delete
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摘要

摘要

En 中文
我们采用量子费希尔信息(quantum Fisher information)的概念来优化相干散射显微术中的聚焦激发场。我们的优化目标是实现对位于盖玻片上方的小散射体的最佳可能定位精度,同时保持总入射激发场的强度固定。对于小数值孔径(NA)值,最优场具有线性或圆偏振,激发光束可很好地近似为高斯光束。对于较大的NA值,最优光束获得径向偏振。我们表明,高定位精度可归因于散射体位置处的高场强,以及相应的大量散射和检测到的光子。最后,我们评估了优化光束在干涉散射显微术(isCAT)中的性能,并进一步采用费希尔信息(Fisher information)的概念对isCAT定位优化这些场。
Keyword:
optical coherence microscopy
Fisher information
structured light

期刊

Nanophotonics 封面图
Nanophotonics
IF:
6.6
论文数:
3.0K
被引数:
1.6W

机构

U
university of graz
学者数:
866
论文数: 429
被引数: 0
U
University of Vienna
学者数:
1.7W
论文数: 1.6W
被引数: 40
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