Results 151 to 160 of about 80,548 (342)

Wavefront Refraction and Correction [PDF]

Optometry and Vision Science, 2014
Adrian S. Bruce, Arthur Bradley, Michael J. Collins, Larry N. Thibos, Ray Applegate, Geunyoung Yoon, Jason D Marsack, David A. Atchison, Scott A. Read   +8 more
openaire   +2 more sources

Uncovering Hidden Resonances in Non‐Hermitian Systems with Scattering Thresholds

Laser &Photonics Reviews, EarlyView.
The points where diffraction orders emerge or vanish in the propagating spectrum of periodic non‐Hermitian systems are referred to as scattering thresholds. Close to these branch points, resonances from different Riemann sheets can tremendously impact the optical response.
Fridtjof Betz, Felix Binkowski, Jan David Fischbach, Nick Feldman, Lin Zschiedrich, Carsten Rockstuhl, A. Femius Koenderink, Sven Burger   +7 more
wiley   +1 more source

Multichannel Detection of Hybrid Spin‐Orbital Mode Pairs

Laser &Photonics Reviews, EarlyView.
A multi‐foci metalens is developed to detect hybrid spin‐orbital mode pairs (HSOMPs) in multiple channels. Each light spot can detect a predesigned HSOMP, while the spin states of its components are determined by the arc intensity patterns in the neighboring light spots.
Rong Yan, Hammad Ahmed, Ruoxing Wang, Chunmei Zhang, Jia Li, Liheng Bian, Xianzhong Chen   +6 more
wiley   +1 more source

Are physiological oscillations physiological?

The Journal of Physiology, EarlyView., 2023
Abstract figure legend Mechanisms and functions of physiological oscillations. Abstract Despite widespread and striking examples of physiological oscillations, their functional role is often unclear. Even glycolysis, the paradigm example of oscillatory biochemistry, has seen questions about its oscillatory function.
Lingyun (Ivy) Xiong, Alan Garfinkel
wiley   +1 more source

<title>EEV CCD39 wavefront sensor cameras for AO and interferometry</title> [PDF]

, 2000
R. C. DuVarney, Charles A. Bleau, Garry Motter, Stuart Shaklan, A. Kuhnert, Gary L. Brack, Dean L. Palmer, Mitchell Troy, Thangh Kieu, Richard G. Dekany   +9 more
openalex   +1 more source

Integrated Flat‐Top Beam Shaper Using Subwavelength Engineered Critical Guiding

Laser &Photonics Reviews, EarlyView.
An integrated flat‐top beam shaper is demonstrated. Subwavelength gratings are utilized to realize the critical guiding of light. The monolithic integrated design provides a scalable solution for high uniformity on‐chip flat‐top beam generation, potential for high‐performance imaging and metrology photonic system.
Liang Zhang, Hongnan Xu, Gaolei Hu, Hon Ki Tsang   +3 more
wiley   +1 more source

First results of an on-line adaptive optics system with atmospheric wavefront sensing by an artificial neural network

, 1992
Michael Lloyd‐Hart, Peter Wizinowich, B. A. McLeod, David Wittman, D’nardo Colucci, R. Dekany, Donald McCarthy, J. R. P. Anel, David G. Sandler   +8 more
openalex   +1 more source

Investigation on the wavefront stability of wavefront sensors

, 2006
This dissertation mainly describes the wavefront stability of light source for the wavefront sensing systems. Several investigations on three different light sources, white light, laser diode and He-Ne laser have been carried out for two wavefront sensing systems, Hartmann and Shack-Hartmann systems.
openaire   +1 more source

Rough Quasi‐Conformal Mapping for Realizing Omnidirectional Light Wave Manipulation in Lower‐Index Meta‐Lens

Laser &Photonics Reviews, EarlyView.
A rough quasi‐conformal mapping strategy breaks the rigid geometric constraints of transformation optics. By trading perfect local angle preservation for a dramatically reduced refractive index, this design paradigm enables the creation of ultra‐flat, wide‐angle, and even omnidirectional lenses that are both high‐performance and manufacturable, opening
Feiyang Deng, Jiawen Hao, Kwai Man Luk
wiley   +1 more source

Wavefront propagation in a competition equation with a new motility term modelling contact inhibition between cell populations [PDF]

, 2000
Jonathan A. Sherratt
openalex   +1 more source