Results 131 to 140 of about 2,071,972 (337)
Advanced Electronic Materials, EarlyView.A diagnostic method for reconfigurable intelligent surfaces (RIS) based on non‐uniform space‐time‐coding modulation is presented. Fault localization is achieved via amplitude‐only spectral measurements, eliminating the need for complex signal processing. A one‐to‐one mapping between harmonic components and RIS elements enables accurate detection.
Xiao Qing Chen +8 more
wiley +1 more source
Widefield wavefront sensor for multidirectional peripheral retinal scanning. [PDF]
Biomed Opt Express, 2023 Pusti D +5 more
europepmc +1 more source
Development of an ELT XAO testbed using a Mach-Zehnder wavefront sensor: calibration of the deformable mirror [PDF]
, 2015 Christian Delacroix +6 more
openalex +1 more source
Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective
Advanced Electronic Materials, EarlyView.Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe +4 more
wiley +1 more source
MAORY/MORFEO and LIFT: can the low order wavefront sensors become phasing sensors?
, 2022 Guido Agapito +5 more
openalex +1 more source
Advanced Electronic Materials, EarlyView.This work proposed an unsupervised physics‐informed deep learning method of generating space‐time‐coding metasurface coding patterns for arbitrary single‐ and dual‐beam requirements at each harmonic. This method is specially designed for the coding pattern design task of multi‐bit scenario, and it can effectively handle the optimization trouble caused ...
Jiang Han Bao +6 more
wiley +1 more source
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.A novel method for generating versatile standing wave fields using an acoustic metasurface deflector and retroreflector is introduced. By overcoming traditional constraints of parallel surfaces, the approach enables customizable wave patterns and enhances applications in particle manipulation.
Chadi Ellouzi +4 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
Advanced Intelligent Systems, EarlyView.This study presents a compact freeform projection optics using dual wedge prisms for waveguide displays. Unlike previous designs that separate illumination and imaging paths, a freeform optical path integrates both. The system achieves a 32º field of view, 37.5 pixels per degree, and a total volume of less than 2 cm3.
Ximeng Wang +5 more
wiley +1 more source
Assessing and mitigating alignment defects of the pyramid wavefront sensor: a translation insensitive control method [PDF]
, 2018 Vincent Déo +5 more
openalex +1 more source