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
doaj +2 more sources
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
doaj +2 more sources
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
doaj +2 more sources
Design and Error Analysis of an Optical Measurement System for the Wavefront of Large-Aperture Segmented Mirror [PDF]
SensorsTo better meet the wavefront measurement requirements for large-aperture segmented mirrors after in-orbit deployment, this paper designs a measurement system based on an optical camera and targets.
Yukun He +5 more
doaj +2 more sources
Transmission matrix of a multimode fiber: In-line vs off-axis holography. [PDF]
PLoS ONEMultimode fibers (MMFs) hold great promise for a variety of imaging applications. However, controlling the complex propagation of light through thousands of modes in MMFs remains a challenging task.
Aleksandra Ivanina +5 more
doaj +2 more sources
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
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
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