Results 291 to 300 of about 96,711 (321)

Mechanistic insight into the initiation of spreading depolarizations: Is it really all about potassium?

open access: yes
The Journal of Physiology, Volume 603, Issue 11, Page 3269-3273, 1 June 2025.
Rachel Ricks   +3 more
wiley   +1 more source

Threading light through dynamic complex media. [PDF]

open access: yesNat Photonics
Mididoddi CK   +5 more
europepmc   +1 more source

The optics of wavefront sensing [PDF]

open access: possibleOphthalmology Clinics of North America, 2004
This article reviews the fundamental principles by which wavefront aberrometers measure ocular aberrations. Three different ways of interpreting aberration measurements are described in terms of wavefront phase, slope, and curvature. Although curvature is the more familiar concept from geometrical optics, the wave optics concept of wavefront phase is ...
openaire   +2 more sources

Wavefront sensing with an axicon

Optics Letters, 2011
The use of a large apex-angle axicon for common-path interferometric wavefront sensing is proposed. The approach is a variant of point-diffraction interferometry bearing similarities to pyramidal wavefront sensing. A theoretical basis for wavefront sensing with an axicon is developed, and the outcomes of numerical simulations are compared to ...
Diego Rativa   +2 more
openaire   +3 more sources

Making sense out of wavefront sensing

American Journal of Ophthalmology, 2005
a T p HE PRESENCE OF OPTICAL ABERRATIONS THAT BLUR retinal images were the subject of popular lectures by Helmholtz in the 1860s, and led him to state: Now, it is not too much to say that if an optician wanted o sell me an instrument which had all these defects, I hould think myself justified in blaming his carelessness in he strongest terms and giving
Raymond A. Applegate, Jay S. Pepose
openaire   +3 more sources

Holography-based wavefront sensing

Applied Optics, 2007
We describe a modal wavefront sensing technique of using multiplexed holographic optical elements (HOEs). The phase pattern of a set of aberrations is angle multiplexed in a HOE, and the correlated information is obtained with a position sensing detector.
F. Ghebremichael   +2 more
openaire   +3 more sources

Comparison of wavefront sensing devices

Ophthalmology Clinics of North America, 2004
Wavefront measurement is an emerging technology that can evaluate low-order and high-order aberrations. This review compiles the different wavefront sensing devices and compares the most popular Hartmann-Shack aberrometers.
Kerry D Solomon   +3 more
openaire   +3 more sources

The future of wavefront sensing and customization

Ophthalmology Clinics of North America, 2004
The possibility of achieving supernormal vision in terms of acuity and contrast has fueled the imagination and creativity of vision researchers to pursue the goal of customized wavefront refractive surgery. This goal is achieved by generating an optimal ablation pattern based on individual anatomical and functional characteristics of the treated eye ...
Dimitri T. Azar   +3 more
openaire   +3 more sources

Active wavefront sensing and wavefront control with SLMs

SPIE Proceedings, 2004
Active systems are becoming more and more prevalent in the the field of optical technology. These systems require not only means of controlling wavefronts but mostly also of sensing wavefronts. This paper shows in four examples how spatial light modulators can be utilized to perform active wavefront sensing and wavefront controlling tasks. The examples
Jan Liesener   +3 more
openaire   +2 more sources

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