Results 121 to 130 of about 2,024,523 (345)
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
46‐Channel Image Encryption Based on Optically Controlled Metasurfaces
Advanced Electronic Materials, EarlyView.A metasurface‐based optically‐controlled image encryption device is proposed, enabling 46 encryption channels and dynamic capabilities. The terahertz isotropic phase metasurface switches between encryption channels in response to the structured infrared light incident on its surface.
Yufei Liu +4 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
<title>EEV CCD39 wavefront sensor cameras for AO and interferometry</title> [PDF]
, 2000 R. C. DuVarney +9 more
openalex +1 more source
A Periodic Error Correction Method for Terahertz Coded‐Aperture Imaging
Advanced Intelligent Systems, EarlyView.A physics‐constrained unsupervised learning framework with periodic error correction is proposed for terahertz coded‐aperture imaging. The method improves reconstruction robustness against noise and model mismatch, while reducing reliance on large‐scale labeled data.
Hongxu Wu +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
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
WISH: wavefront imaging sensor with high resolution
Light: Science & Applications, 2019 Wavefront sensing is the simultaneous measurement of the amplitude and phase of an incoming optical field. Traditional wavefront sensors such as Shack-Hartmann wavefront sensor (SHWFS) suffer from a fundamental tradeoff between spatial resolution and ...
Yicheng Wu, M. Sharma, A. Veeraraghavan
semanticscholar +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
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