Angle-sensitive pixel design for wavefront sensing [PDF]
arXiv, 2013 Conventional image sensors are only responsive to the intensity variation of the incoming light wave. By encoding the wavefront information into the balanced detection scheme, we demonstrate an image sensor pixel design that is capable to detect both the local intensity and wavefront information simultaneously.
arxiv
Free‐space Optical Computing Systems
Annalen der Physik, EarlyView.Manipulation and propagation of optical wavefronts in free space enables new intelligent computing hardware. Two types of optical computing systems, matrix and vector multiplication systems and diffractive optical neural network systems, are reviewed from material, device, and system aspects.
Ruiyang Chen, Weilu Gao
wiley +1 more source
Singular Electromagnetics: From Phase Singularities to Optical Skyrmions and Beyond
Advanced Physics Research, EarlyView.Singular electromagnetics/optics studies multidimensional topological defects of electromagnetic fields (also known as optical singularities), including phase and polarization singularities, 3D singularities (e.g., optical skyrmions, merons, hopfions, knots, links, and Möbius strips), and even higher‐dimensional singularities.
Jie Yang +3 more
wiley +1 more source
Ophthalmic imaging in diabetic retinopathy: A review
Clinical &Experimental Ophthalmology, Volume 50, Issue 9, Page 1082-1096, December 2022., 2022 Abstract Retinal imaging has been a key tool in the diagnosis, evaluation, management and documentation of diabetic retinopathy (DR) and diabetic macular oedema (DMO) for many decades. Imaging technologies have rapidly evolved over the last few decades, yielding images with higher resolution and contrast with less time, effort and invasiveness.
Onnisa Nanegrungsunk +2 more
wiley +1 more source
Deep Tissue Wavefront Estimation for Sensorless Aberration Correction
MATEC Web of Conferences, 2015 The multiple light scattering in biological tissues limits the measurement depth for traditional wavefront sensor. The attenuated ballistic light and the background noise caused by the diffuse light give low signal to noise ratio for wavefront ...
Ibrahimovic Emina +4 more
doaj +1 more source
Widefield wavefront sensor for multidirectional peripheral retinal scanning. [PDF]
Biomed Opt Express, 2023 Pusti D +5 more
europepmc +1 more source
Estimating the point spread function of the adaptive optics system ADONIS using the wavefront sensor measurements [PDF]
, 2000 Stephan Harder, A. Chelli
openalex +1 more source
Stimuli‐Configuring Anisotropic Soft Architectures towards Dynamic Manipulable Photonics
Advanced Physics Research, EarlyView.This review covers stimuli‐responsive liquid crystal micro/nano‐structures, focusing on their properties, advancements, and applications in photonics. It discusses electric, light, temperature, and mechanical stimuli, highlighting innovative applications in optics, sensing, information processing and so on so forth, emphasizing liquid crystal ...
Xiaoqian Wang, Zhi‐Gang Zheng
wiley +1 more source
Adaptive optics with programmable Fourier-based wavefront sensors: a spatial light modulator approach to the LOOPS testbed [PDF]
arXiv, 2019 Wavefront sensors encode phase information of an incoming wavefront into an intensity pattern that can be measured on a camera. Several kinds of wavefront sensors (WFS) are used in astronomical adaptive optics. Amongst them, Fourier-based wavefront sensors perform a filtering operation on the wavefront in the focal plane. The most well known example of
arxiv
<title>EEV CCD39 wavefront sensor cameras for AO and interferometry</title> [PDF]
, 2000 R. C. DuVarney +9 more
openalex +1 more source