Results 41 to 50 of about 3,034 (156)
An Efficient Method for Wavefront Aberration Correction Based on the RUN Optimizer
Photonics, 2023 The correction of wavefront aberrations in wavefront sensorless (WFS-less) adaptive optical (AO) systems requires control algorithms that can ensure rapid convergence while maintaining effective correction capabilities.
Huizhen Yang +6 more
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Integrated structure and sensorless feedback control of unimorph piezoelectric deformable mirrors
Light: Advanced ManufacturingDeformable mirrors are essential dynamic wavefront compensation. Among the various types of deformable mirrors with different actuation mechanisms, the unimorph piezoelectric deformable mirror (UPDM) offers distinct advantages owing to its compact size ...
Dapeng Tian, Jian Chen, Ping Jia
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Optimization of electrode geometry and piezoelectric layer thickness of a deformable mirror
EPJ Web of Conferences, 2013 Deformable mirrors are the most commonly used wavefront correctors in adaptive optics systems. Nowadays, many applications of adaptive optics to astronomical telescopes, high power laser systems, and similar fast response optical devices require large ...
Nováková Kateřina +2 more
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Journal of the Mechanical Behavior of Materials, 2018 Active optics techniques on large telescopes and astronomical instrumentations provide high imaging quality. For ground-based astronomy, the co-addition of adaptive optics again increases angular resolution up to providing diffraction-limited imaging at ...
Lemaitre Gérard Rene
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An Image Stabilization Optical System Using Deformable Freeform Mirrors
Sensors, 2015 An image stabilization optical system using deformable freeform mirrors is proposed that enables the ray sets to couple dynamically in the object and image space.
Qun Hao +3 more
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ZOLA-3D allows flexible 3D localization microscopy over an adjustable axial range
Nature Communications, 2018 3D single-molecule localization is limited in depth and often requires using a wide range of point spread functions (PSFs). Here the authors present an optical solution featuring a deformable mirror to generate different PSFs and easy-to-use software for
Andrey Aristov +3 more
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Terahertz adaptive optics with a deformable mirror [PDF]
Optics Letters, 2018 We report on the wavefront correction of a terahertz (THz) beam using adaptive optics, which requires both a wavefront sensor that is able to sense the optical aberrations, as well as a wavefront corrector. The wavefront sensor relies on a direct 2D electro-optic imaging system composed of a ZnTe crystal and a CMOS camera.
Brossard, Mathilde +3 more
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Development of a miniaturized deformable mirror controller [PDF]
SPIE Proceedings, 2016 SPIE Astronomical Telescopes and Instrumentation ...
Bendek, Eduardo +6 more
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X-ray speckle reduction using a high-speed piezoelectric deformable mirror system
High Power Laser Science and EngineeringAn advanced deformable Kirkpatrick–Baez (K-B) mirror system was developed, equipped with high-speed piezoelectric actuators, and designed to induce beam decoherence and significantly enhance the quality of X-ray imaging by minimizing undesirable speckles
Shuai Yan +8 more
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PhotonicsAtmospheric turbulence introduces distortions to the wavefront of propagating optical radiation. It causes image resolution degradation in astronomical telescopes and significantly reduces the power density of radiation on the target in focusing ...
Ilya Galaktionov, Vladimir Toporovsky
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