Advanced Wavefront Control Techniques [PDF]
, 2001 Programs at LLNL that involve large laser systems--ranging from the National Ignition Facility to new tactical laser weapons--depend on the maintenance of laser beam quality through precise control of the optical wavefront. This can be accomplished using adaptive optics, which compensate for time-varying aberrations that are often caused by heating in ...
Olivier, S. S. +16 more
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Predictive control of thermally induced wavefront aberrations [PDF]
Optics Express, 2013 In this paper we experimentally demonstrate the proof of concept for predictive control of thermally induced wavefront aberrations in optical systems. On the basis of the model of thermally induced wavefront aberrations and using only past wavefront measurements, the proposed adaptive optics controller is able to predict and to compensate the future ...
Haber, A. (author) +5 more
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Nonlinear Wavefront Control with All-Dielectric Metasurfaces [PDF]
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.
Lei Wang +5 more
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ELT METIS wavefront control strategy [PDF]
Adaptive Optics Systems VIII, 2022 EPIC
Correia, Carlos M. +10 more
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Analysis of design for Hartmann-Shack measurements under usage of Fourier-iteration and Zernike approximation wavefront reconstruction methods [PDF]
, 2022 Paper 97171P, 6 S.The measurement of a wavefront is a powerful tool for characterizing optical systems. The most commonly used wavefront measurement technique is the method of local-light aberrometry.
Hartmann, Peter +4 more
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MEMS phase former kit for high-resolution wavefront control [PDF]
, 2022 S.148-161The MEMS Phase Former Kit developed by the Fraunhofer IPMS is a complete Spatial Light Modulator system based on a piston-type Micro Mirror Array (MMA) for the use in high-resolution, high-speed optical phase control. It has been designed for an
Schenk, H. +4 more
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Various Wavefront Sensing and Control Developments on the Santa Cruz Extreme AO Laboratory (SEAL) Testbed [PDF]
, 2022 Ground-based high contrast imaging (HCI) and extreme adaptive optics (AO) technologies have advanced to the point of enabling direct detections of gas-giant exoplanets orbiting beyond the snow lines around nearby young star systems.
Jensen-Clem, Rebecca +9 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
doaj +1 more source
Tests on micro-mirror arrays for adaptive optics [PDF]
, 2022 S.319-329Micro Mirror Arrays (MMAs) offer a high speed and high resolution technology for wavefront control applications. In this paper a new MMA type is investigated.
Liesener, J. +5 more
core +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