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One-Dimensional High-Resolution Wavefront Sensor Enabled by Subwavelength Compound Gratings
Angle sensors are widely used for wavefront measurements, which is attributed to their integration and robustness. Currently, commercial sensors are available with pixel sizes in the order of wavelengths.
Yunlong Meng+6 more
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On Machine Learning Approaches for Automated Log Management [PDF]
We address several problems in intelligent log management of distributed cloud computing applications and their machine learning solutions. Those problems concern various tasks on characterizing data center states from logs, as well as from related or ...
Ashot Harutyunyan+4 more
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In the geometrical optics approximation, we consider a method for calculating a refractive optical element with two freeform surfaces, which transforms an incident beam with a plane wave-front into an output beam with a required wavefront and generating ...
L.L. Doskolovich+3 more
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Binary Amplitude Reflection Gratings for X-ray Shearing and Hartmann Wavefront Sensors
New, high-coherent-flux X-ray beamlines at synchrotron and free-electron laser light sources rely on wavefront sensors to achieve and maintain optimal alignment under dynamic operating conditions. This includes feedback to adaptive X-ray optics.
Kenneth A. Goldberg+2 more
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Method for arbitrary phase transformation by a slab based on transformation optics and the principle of equal optical path [PDF]
The optical path lengths travelled by rays across a wavefront essentially determine the resulting phase front irrespective of the shape of a medium according to the principle of equal optical path.
Ke Y., Shu W., Luo H., Wen S., Fan D.
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Communication with face masks during the COVID-19 pandemic for adults with hearing loss
Face masks have become common protective measures in community and workplace environments to help reduce the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Face masks can make it difficult to hear and understand speech,
Brenda T. Poon, Lorienne M. Jenstad
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Optical Bench Analysis of 2 Depth of Focus Intraocular Lenses
Background: The aim of the study was to analyze the objective optical properties of 2 enhanced depth of focus (EDoF) intraocular lenses (IOLs) using optical bench analysis.
Andreas F. Borkenstein+3 more
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The classic equation for decomposing the wavefront aberrations of axis-symmetrical optical systems has the form, W ( h 0 , ρ , ϕ ) = ∑ j = 0 ∝ ∑ p = 0 ∝ ∑ m = 0 ∝ C 2 j + m 2 p + m m ( h 0 ...
Lin Psang
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Rhythmic Calcium Events in the Lamina Propria Network of the Urinary Bladder of Rat Pups
The lamina propria contains a dense network of cells, including interstitial cells (ICs), that may play a role in bladder function by modulating communication between urothelium, nerve fibers and smooth muscle or acting as pacemakers.
Thomas J. Heppner+3 more
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The spatial distribution of beams with orbital angular momentum in the far field is known to be extremely sensitive to angular aberrations, such as astigmatism, coma and trefoil. This poses a challenge for conventional beam optimization strategies when a
J. B. Ohland+6 more
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