Results 91 to 100 of about 13,728 (209)
The National Ignition Facility (NIF) Wavefront Control System [PDF]
, 1998 A wavefront control system will be employed on NIF to correct beam aberrations that otherwise would limit the minimum target focal spot size. For most applications, NIF requires a focal spot that is a few times the diffraction limit.
Lawson, Janice +14 more
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An Improved Wavefront Control Algorithm for Large Space Telescopes [PDF]
, 2008 Wavefront sensing and control is required throughout the mission lifecycle of large space telescopes such as James Webb Space Telescope (JWST). When an optic of such a telescope is controlled with both surface-deforming and rigid-body actuators, the ...
Redding, David C. +2 more
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Adaptive Wavefront Control with Asynchronous Stochastic Parallel Gradient Descent Clusters [PDF]
, 2006 A scalable adaptive optics (AO) control system architecture composed of asynchronous control clusters based on the stochastic parallel gradient descent (SPGD) optimization technique is discussed.
Carhart, Gary W., Vorontsov, Mikhail
core +1 more source
Inverse theory of wavefront shaping in nonlinear scattering media
Nature CommunicationsScattering fundamentally limits the propagation of light in complex media, yet controlling it is essential for transformative advances in imaging, sensing, and optical communication.
Daixuan Wu +11 more
doaj +1 more source
Nonlinear nonlocal metasurfaces
eLightNonlinear metasurfaces have been enabling unprecedented control over light generation and wave mixing, demonstrating enhanced wavefront control, beam shaping and steering of nonlinear light waves.
Michele Cotrufo +3 more
doaj +1 more source
Wavefront Control Testbed (WCT) Experiment Results [PDF]
, 2004 The Wavefront Control Testbed (WCT) was created to develop and test wavefront sensing and control algorithms and software for the segmented James Webb Space Telescope (JWST).
Lowman, Andrew E. +8 more
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Complex pattern projection through a multimode fiber [PDF]
Wavefront shaping through multimode fibers has many interesting applications, such as micromanipulation and endoscopy, where the small diameter of fibers is an advantage in terms of miniaturization. However, pattern projection can suffer from deleterious
Moser, Christophe +3 more
core +1 more source
The Wavefront Control System for the National Ignition Facility [PDF]
, 2001 The National Ignition Facility (NIF) requires that pulses from each of the 192 laser beams be positioned on target with an accuracy of 50 {micro}m rms. Beam quality must be sufficient to focus a total of 1.8 MJ of 0.351-{micro}m light into a 600-{micro}m-
Perez, M. +3 more
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Research Progress of Deformable Mirror and Its Control Algorithm
Guangtongxin yanjiu【Objective】Deformable Mirror(DM) is a key device in adaptive optics system for wavefront correction, and its performance directly determines the wavefront correction capability of the system.
LIANG Jingyuan +7 more
doaj
Demonstrating predictive wavefront control with the Keck II near-infrared pyramid wavefront sensor [PDF]
, 2019 The success of ground-based instruments for high contrast exoplanet imaging depends on the degree to which adaptive optics (AO) systems can mitigate atmospheric turbulence.
Bond, Charlotte Z. +7 more
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