Results 21 to 30 of about 239,453 (286)
Method for distortion correction of multi-layered surface reconstruction using time-gated wavefront sensing approach [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 In order to estimate the multi-layer surface profile and to detect the inter-layer surfaces defects, gated wavefront sensing approach has been proposed in the previous works [1, 2].
Tan C. S. +4 more
doaj +1 more source
Impact of Pupil Aberrations on Wavefront Manipulation [PDF]
EPJ Web of Conferences, 2021 A systematic and quantitative analysis is given of the impact of pupil aberrations on the imaging performance in wavefront manipulation applications using adaptive optical elements.
Nobis Thomas
doaj +1 more source
Forecasting wavefront corrections in an adaptive optics system
Journal of Astronomical Telescopes, Instruments, and Systems, 2022 We use telemetry data from the Gemini North ALTAIR adaptive optics system to investigate how well the commands for wavefront correction (both Tip/Tilt and high-order turbulence) can be forecasted in order to reduce lag error (due to wavefront sensor averaging and computational delays) and improve delivered image quality.
Hafeez, Rehan +4 more
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Real-Time Correction of a Laser Beam Wavefront Distorted by an Artificial Turbulent Heated Airflow
Photonics, 2022 This paper presents a FPGA-based closed-loop adaptive optical system with a bimorph deformable mirror for correction of the phase perturbation caused by artificial turbulence.
Alexey Rukosuev +4 more
doaj +1 more source
Wavefront Correction in Vacuum of SULF-1PW Laser Beamline
Photonics, 2022 The focusing quality of high peak power lasers plays a crucial role in laser wakefield electron acceleration investigations. We report here an improvement in the focusing quality of the SULF-1PW laser beamline, planning to drive and generate 5~10 GeV ...
Fenxiang Wu +10 more
doaj +1 more source
Iterative linear focal-plane wavefront correction [PDF]
Journal of the Optical Society of America A, 2013 We propose an efficient approximation to the nonlinear phase diversity (PD) method for wavefront reconstruction and correction from intensity measurements with potential of being used in real-time applications. The new iterative linear phase diversity (ILPD) method assumes that the residual phase aberration is small and makes use of a first-order ...
Smith, C.S. (author) +6 more
openaire +5 more sources
Sensors, 2020 In adaptive optics (AO), multiple different incident wavefronts correspond to a same far-field intensity distribution, which leads to a many-to-one mapping.
Xuejing Qiu +4 more
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Frontiers in Physics, 2023 Deformable mirrors (DMs) are widely used in high-power laser systems to improve the output beam quality. However, under high-power laser irradiation, the heat accumulates on the DM mirror surface and results in high-power laser induced distortions (LID),
Yamin Zheng +11 more
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Assessing the growth kinetics and stoichiometry of Escherichia coli at the single‐cell level
Engineering in Life Sciences, Volume 23, Issue 1, January 2023., 2023 Abstract Microfluidic cultivation and single‐cell analysis are inherent parts of modern microbial biotechnology and microbiology. However, implementing biochemical engineering principles based on the kinetics and stoichiometry of growth in microscopic spaces remained unattained.
Katharina Smaluch +5 more
wiley +1 more source
IEEE Photonics Journal, 2022 Correction performance of an adaptive optics (AO) system is severely limited by its system latency under high temporal frequency distortions. Wavefront prediction methods has been proven to be an effective way to compensate system delay.
Ning Wang +8 more
doaj +1 more source