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View article: A general method for rotational averages
A general method for rotational averages Open
The theory of nonlinear spectroscopy on randomly oriented molecules leads to the problem of averaging molecular quantities over random rotation. We solve this problem for arbitrary tensor rank by deriving a closed-form expression for the r…
View article: Noise-free computational ghost imaging with pink noise speckle patterns
Noise-free computational ghost imaging with pink noise speckle patterns Open
Computational ghost imaging reconstructs an object by second order correlation measurement with the use of a single pixel detector. It normally requires a large number of speckle patterns to make an ensemble average to retrieve the desired…
View article: Anti-interference Computational Ghost Imaging with Pink Noise Speckle Patterns
Anti-interference Computational Ghost Imaging with Pink Noise Speckle Patterns Open
We propose a computational ghost imaging scheme using customized pink noise speckle pattern illumination. By modulating the spatial frequency amplitude of the speckles, we generate speckle patterns with a significant positive spatial corre…
View article: Enhancing sensitivity of lateral flow assay with application to SARS-CoV-2
Enhancing sensitivity of lateral flow assay with application to SARS-CoV-2 Open
Lateral flow assay (LFA) has long been used as a biomarker detection technique. It has advantages such as low cost, rapid readout, portability, and ease of use. However, its qualitative readout process and lack of sensitivity are limiting …
View article: Magnus expansion method for two-level atom interacting with few-cycle pulse
Magnus expansion method for two-level atom interacting with few-cycle pulse Open
Using the Magnus expansion to the fourth order, we obtain analytic\nexpressions for the atomic state of a two-level system driven by a laser pulse\nof arbitrary shape with small pulse area. We also determine the limitation of\nour obtained…