Results 111 to 120 of about 48,622 (298)
Optimal Dark Hole Generation via Two Deformable Mirrors with Stroke Minimization
, 2011 The past decade has seen a significant growth in research targeted at space based observatories for imaging exo-solar planets. The challenge is in designing an imaging system for high-contrast.
Belikov, Ruslan +6 more
core +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
PhotonicsIn this paper, we introduce atmospheric adaptive optics (AO) system architectures that utilize scintillation-resistant wavefront sensors based on iterative phase retrieval (IPR) techniques (described in detail in Part I) for closed-loop mitigation of ...
Mikhail A. Vorontsov, Ernst Polnau
doaj +1 more source
Editorial for the Special Issue on MEMS Mirrors
Micromachines, 2018 MEMS mirrors can steer, modulate, and switch light, as well as control the wavefront for focusing or phase modulation.[...]
Huikai Xie
doaj +1 more source
Metasurface wavefront control for high-performance user-natural augmented reality waveguide glasses. [PDF]
Sci Rep, 2022 Boo H +5 more
europepmc +1 more source
The Structure of High Strehl Ratio Point-Spread Functions
, 2003 We describe the symmetries present in the point-spread function (PSF) of an optical system either located in space or corrected by an adaptive o to Strehl ratios of about 70% and higher.
Anand Sivaramakrishnan +7 more
core +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
Loopshaped wavefront control using open-loop reconstructors
Optics Express, 2006 Adaptive optics wavefront controllers are tractably synthesized using loopshaping and internal model control principles. Modal responses at low and high temporal frequencies can thus be specified distinctly using pairs of open-loop reconstructors. Theoretical examples and parametric simulations illustrate the stability, robustness, and flexibility of ...
openaire +2 more sources
Gaze‐Engineered 3D Augmented Reality
Advanced Intelligent Systems, EarlyView.Augmented Reality (AR) systems serve as a critical interface bridging users with the metaverse. This study explores the application of human factors engineering in metaverse development, specifically investigating the integration of eye‐tracking technology to enhance AR display performance.
Naiqin Zhao +3 more
wiley +1 more source
Memory‐Reduced Convolutional Neural Network for Fast Phase Hologram Generation
Advanced Intelligent Systems, EarlyView.This article reports a lightweight convolutional neural network framework using INT8 quantization to efficiently generate 3D computer‐generated holograms from a single 2D image. The quantized model reduces memory usage and computational cost, accelerates inference speed, and maintains high output quality, enabling real‐time holographic display on low ...
Chenliang Chang +6 more
wiley +1 more source