Results 71 to 80 of about 154,766 (375)

The Correction of Eye Wavefront Using Contact Lenses and Their Impact on the Accommodative Response

Российский офтальмологический журнал, 2018
Eye wavefront aberrations have a strong impact on the formation of an image on the retina and vision quality. A relationship has also been found between the aberrations and accommodation, which plays a significant role in visual performance and ...
E. P. Tarutta, S. G. Arutyunyan, S. V. Milash   +2 more
doaj   +1 more source

Influence of Image Processing Method on Wavefront Reconstruction Accuracy of Large-Aperture Laser

Photonics, 2023
In order to improve the wavefront reconstruction accuracy of a large-aperture laser, this paper proposed an adaptive window preprocessing algorithm based on the threshold center of gravity method (AW-TCoG).
Gangyu Wang, Zaihong Hou, Laian Qin, Xu Jing, Yang Li, Yi Wu   +5 more
doaj   +1 more source

Measurement of Thermo-Elastic Deformation of an Optic using a Polarization Based Shearing Interferometer

, 2012
A shearing interferometer is presented which uses polarization control to shear the wavefront and to modulate the interference pattern. The shear is generated by spatial walk-off in a birefringent crystal. By adjusting the orientation of the birefringent
Abramowitz, Agrawal, Fowels, Ghiglia, Hello, Hello, Kothiyal, Lu, Murukeshan, Nikogosyan, Rosso, Servin, Winkler, Yariv, Zhu Tuan   +14 more
core   +1 more source

Wavefront shaping with disorder-engineered metasurfaces [PDF]

Nature Photonics, 2017
Recently, wavefront shaping with disordered media has demonstrated optical manipulation capabilities beyond those of conventional optics, including extended volume, aberration-free focusing and subwavelength focusing.
Mooseok Jang, Y. Horie, A. Shibukawa, Joshua Brake, Yan Liu, Seyedeh Mahsa Kamali, A. Arbabi, H. Ruan, A. Faraon, Changhuei Yang   +9 more
semanticscholar   +1 more source

MORPHOLOGICAL DESCRIPTIONS USING THREE-DIMENSIONAL WAVEFRONTS

Image Analysis and Stereology, 2011
The present study deals with the analysis of three-dimensional binary objects whose structure is not obvious nor generally clearly visible. Our approach is illustrated through three examples taken from biological microscopy.
Jean Serra
doaj   +1 more source

Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth

Advanced Functional Materials, EarlyView.
This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh, Ankita Mohanty, Amit Malakar, Suryasarathi Bose, Suprakas Sinha Ray   +4 more
wiley   +1 more source

Assessment of Wavefront Aberrations in Children with Myopia Against the Background of Ocular Surface Disorders in Combination with Computer Vision Syndrome Digital and Eye Strain

Oftalʹmologiâ
Purpose: to assess the state of the wavefront in children with myopia, who have various manifestations of digital eye strain and symptoms of ocular surface disorders, and to evaluate the diagnostic significance of wavefront criteria for assessing the ...
I. L. Plisov, E. M. Naumova, A. I. Smoleva   +2 more
doaj   +1 more source

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., Wang X., Ng Y. H., Lim W. K., Chai T. Y.   +4 more
doaj   +1 more source

Wavefront Coherent Compensation Technology Under Direct Sunlight in Free Space Optical Communication System

IEEE Photonics Journal, 2021
The charge-coupled device-based Shaker–Hartmann wavefront sensor has been widely used to compensate for wavefront distortion in coherent optical communication.
Xu Yan, Changqing Cao, Wenrui Zhang, Xiaodong Zeng, Zhejun Feng, Zengyan Wu, Ting Wang   +6 more
doaj   +1 more source

Achieving the laser intensity of 5.5×1022 W/cm2 with a wavefront-corrected multi-PW laser.

Optics Express, 2019
The generation of ultrahigh intensity laser pulses was investigated by tightly focusing a wavefront-corrected multi-petawatt Ti:sapphire laser. For the wavefront correction of the PW laser, two stages of deformable mirrors were employed.
J. W. Yoon, C. Jeon, J. Shin, S. Lee, H. W. Lee, I. Choi, H. T. Kim, J. Sung, C. Nam   +8 more
semanticscholar   +1 more source