Results 1 to 10 of about 48,523 (199)
Wavefront control of subcycle vortex pulses via carrier-envelope-phase tailoring [PDF]
Light: Science & Applications, 2023 The carrier-envelope phase (CEP) of an ultrashort laser pulse is becoming more crucial to specify the temporal characteristic of the pulse’s electric field when the pulse duration becomes shorter and attains the subcycle regime; here, the pulse duration ...
Yu-Chieh Lin +2 more
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Experimental Verification of Model-Based Wavefront Sensorless Adaptive Optics System for Large Aberrations [PDF]
MicromachinesTo address the limitations of conventional wavefront sensorless adaptive optics (AO) systems regarding iteration efficiency and convergence speed, this study conducts an experimental validation of a model-based wavefront sensorless AO approach.
Huizhen Yang +4 more
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Unidirectional guided-wave-driven metasurfaces for arbitrary wavefront control [PDF]
Nature CommunicationsMetasurfaces are capable of fully reshaping the wavefronts of incident beams in desired manners. However, the requirement for external light excitation and the resonant nature of their meta-atoms, make challenging their on-chip integration.
Shiqing Li +7 more
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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
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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
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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
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
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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
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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
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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