Results 1 to 10 of about 30,667 (264)

Filtered Influence Function of Deformable Mirror for Wavefront Correction in Laser Systems [PDF]

Photonics, 2021
An influence function filtering method (IFFM) is presented to improve the wavefront correction capability in laser systems by curbing the correction performance degradation resulted from the IF measurement noise.
Yamin Zheng, Ming Lei, Shibing Lin, Deen Wang, Qiao Xue, Lei Huang   +5 more
doaj   +2 more sources

Wavefront Correction in Vacuum of SULF-1PW Laser Beamline [PDF]

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, Ende Li, Yi Xu, Jiayi Qian, Jiacheng Zhu, Jiabing Hu, Yang Zhao, Peile Bai, Zongxin Zhang, Yuxin Leng, Zeping Yang   +10 more
doaj   +2 more sources

Adaptive wavefront correction structured illumination holographic tomography. [PDF]

Sci Rep, 2019
AbstractIn this study, a novel adaptive wavefront correction (AWC) technique is implemented on a compactly developed structured illumination holographic tomography (SI-HT) system. We propose a mechanical movement-free compact scanning architecture for SI-HT systems with AWC, implemented by designing and displaying a series of computer-generated ...
Balasubramani V, Tu HY, Lai XJ, Cheng CJ.   +3 more
europepmc   +4 more sources

Experimental Verification of Model-Based Wavefront Sensorless Adaptive Optics System for Large Aberrations [PDF]

Micromachines
To address the limitations of conventional wavefront sensorless adaptive optics (AO) systems regarding iteration efficiency and convergence speed, this study conducts an experimental validation of a model-based wavefront sensorless AO approach.
Huizhen Yang, Yongqiang Miao, Peng Chen, Zhiguang Zhang, Zhaojun Yan   +4 more
doaj   +2 more sources

Combined hardware and computational optical wavefront correction. [PDF]

Biomed Opt Express, 2018
In many optical imaging applications, it is necessary to overcome aberrations to obtain high-resolution images. Aberration correction can be performed by either physically modifying the optical wavefront using hardware components, or by modifying the wavefront during image reconstruction using computational imaging. Here we address a longstanding issue
South FA, Kurokawa K, Liu Z, Liu YZ, Miller DT, Boppart SA.   +5 more
europepmc   +3 more sources

Wavefront-Guided Scleral Lens Correction in Keratoconus [PDF]

Optometry and Vision Science, 2014
To examine the performance of state-of-the-art wavefront-guided scleral contact lenses (wfgSCLs) on a sample of keratoconic eyes, with emphasis on performance quantified with visual quality metrics, and to provide a detailed discussion of the process used to design, manufacture, and evaluate wfgSCLs.Fourteen eyes of seven subjects with keratoconus were
Jason D, Marsack, Ayeswarya, Ravikumar, Chi, Nguyen, Anita, Ticak, Darren E, Koenig, James D, Elswick, Raymond A, Applegate   +6 more
openaire   +3 more sources

Improving Focal Photostimulation of Cortical Neurons with Pre-derived Wavefront Correction [PDF]

Frontiers in Cellular Neuroscience, 2017
Recent progress in neuroscience to image and investigate brain function has been made possible by impressive developments in optogenetic and opto-molecular tools.
Vincent R. Daria, Julian M. C. Choy, Sharmila S. Sané, Woei M. Lee, Christian Stricker, Christian Stricker, Hans A. Bachor   +6 more
doaj   +2 more sources

Low Spatio-Temporal Frequency Wavefront Aberration Correction Method Based on a Movable Secondary Mirror [PDF]

IEEE Photonics Journal
A low frequency wavefront aberration correction method for solar telescopes based on secondary mirror movement is proposed to correct dynamic wavefront aberration during the operation of solar telescope.
Yawei Xiao, Simin Zhao, Junbo Zhang, Linhai Huang, Naiting Gu   +4 more
doaj   +2 more sources

Rapid and efficient wavefront correction for spatially entangled photons using symmetrized optimization [PDF]

APL Photonics
Spatial entanglement is a key resource in quantum technologies, enabling applications in quantum communication, imaging, and computation. However, propagation through complex media distorts spatial correlation, posing a challenge for practical ...
Kiran Bajar, Ronen Shekel, Vikas S. Bhat, Rounak Chatterjee, Yaron Bromberg, Sushil Mujumdar   +5 more
doaj   +4 more sources

Compact way to generate guide star for wavefront sensing in Bessel two-photon microscopy [PDF]

Scientific Reports
We introduce a compact method for generating guide stars to enable direct wavefront sensing in Bessel two-photon microscopy. By sequentially modulating an axicon phase and a thin lens phase using a spatial light modulator (SLM), our approach achieves ...
Fanglin Luo, Nan Li, Chengliang Yang, Zenghui Peng, Quanquan Mu, Xingyun Zhang   +5 more
doaj   +2 more sources