نتایج جستجو برای: coherence time

تعداد نتایج: 1947392  

Journal: :IEEE Transactions on Geoscience and Remote Sensing 2022

Satellite remote sensing is playing an increasing role in the rapid mapping of damage after natural disasters. In particular, synthetic aperture radar (SAR) can image Earth's surface and map all weather conditions, day night. However, current SAR methods struggle to separate from other changes surface. this study, we propose a novel approach mapping, combining deep learning with full time histo...

Journal: :Nature Communications 2021

Abstract Realizing a long coherence time quantum memory is major challenge of current technology. Until now, the longest coherence-time single qubit was reported as 660 s in 171 Yb + ion-qubit through technical developments sympathetic cooling and dynamical decoupling pulses, which addressed heating-induced detection inefficiency magnetic field fluctuations. However, it not clear what prohibite...

Journal: :Measurement Science and Technology 2023

Abstract This paper describes the steps taken to improve measurement speed of a combined low-coherence and confocal refractive index system. The instrument measures thickness transparent plates using fibre-based interferometer with line-scan spectrometer. spectrometer allows on-line dispersion which is necessary derive sample t as well both phase group indices np, ng. measurements were performe...

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