Results 1 to 10 of about 9,355,325 (300)
A review of dielectric optical metasurfaces for wavefront control
Nanophotonics, 2018 During the past few years, metasurfaces have been used to demonstrate optical elements and systems with capabilities that surpass those of conventional diffractive optics.
Amir Arbabi +2 more
exaly +3 more sources
Nonlinear Wavefront Control with All-Dielectric Metasurfaces
Nano Letters, 2018 Metasurfaces, two-dimensional lattices of nanoscale resonators, offer unique opportunities for functional flat optics and allow the control of the transmission, reflection, and polarization of a wavefront of light. Recently, all-dielectric metasurfaces reached remarkable efficiencies, often matching or out-performing conventional optical elements.
Kirill Koshelev +2 more
exaly +5 more sources
Coiling-Up Space Metasurface for High-Efficient and Wide-angle Acoustic Wavefront Steering
Frontiers in Materials, 2021 The recent advent of acoustic metasurface displays tremendous potential with their unique and flexible capabilities of wavefront manipulations. In this paper, we propose an acoustic metagrating made of binary coiling-up space structures to coherently ...
Shuang Chen +6 more
doaj +1 more source
Investigation of PZT Materials for Reliable Piezostack Deformable Mirror with Modular Design
Micromachines, 2023 This article presents a study of the electrophysical properties of a piezoceramic material for use in adaptive optics. The key characteristics that may be important for the manufacturing of piezoelectric deformable mirrors are the following ...
Vladimir Toporovsky +5 more
doaj +1 more source
Frontiers in Astronomy and Space Sciences, 2021 The Deformable Mirror Demonstration Mission (DeMi) is a technology demonstration CubeSat to test a 140 actuator micro-electromechanical system (MEMS) deformable mirror in low-Earth orbit.
Ewan S. Douglas +12 more
doaj +1 more source
State-of-the-Art Technologies in Piezoelectric Deformable Mirror Design
Photonics, 2022 In this work, two advanced technologies were applied for manufacturing a bimorph wavefront corrector: laser ablation, to vaporize conductive silver coating from piezoceramic surface, and parallel-gap resistance microwelding, to provide a reliable ...
Vladimir Toporovsky +5 more
doaj +1 more source
Enhancing axial localization with wavefront control
Optics Express, 2023 Enhancing the ability to resolve axial details is crucial in three-dimensional optical imaging. We provide experimental evidence showcasing the ultimate precision achievable in axial localization using vortex beams. For Laguerre-Gauss (LG) beams, this remarkable limit can be attained with just a single intensity scan.
M. Peterek +8 more
openaire +3 more sources
Real Time Generation of Three Dimensional Patterns for Multiphoton Stimulation
Frontiers in Cellular Neuroscience, 2021 The advent of optogenetics has revolutionized experimental research in the field of Neuroscience and the possibility to selectively stimulate neurons in 3D volumes has opened new routes in the understanding of brain dynamics and functions.
Paolo Pozzi +2 more
doaj +1 more source
Breaking of Wavelength-Dependence in Holographic Wavefront Sensors Using Spatial-Spectral Filtering
Sensors, 2023 Nowadays, wavefront sensors are widely used to control the shape of the wavefront and detect aberrations of the complex field amplitude in various fields of physics. However, almost all of the existing wavefront sensors work only with quasi-monochromatic
Nikita Stsepuro +3 more
doaj +1 more source
Filtered Influence Function of Deformable Mirror for Wavefront Correction in Laser Systems
Photonics, 2021 An influence function filtering method (IFFM) is presented to improve the wavefront correction capability in laser systems by curbing the correction performance degradation resulted from the IF measurement noise.
Yamin Zheng +5 more
doaj +1 more source