Results 41 to 50 of about 265,100 (299)
Micro-Deformable Mirror: a low cost technology for cryogenic active and adaptive optics [PDF]
, 1999 Electrostatically operated bi-directional deflecting silicon membranes can be created using bulk micromachining techniques. The 19-channel Micro-Deformable Mirror, potential candidate for space Active and Adaptive Optics, was built by OKO Technologies ...
Bonicel, Sebastien Louis
core
, 2017 With the rapid development of adaptive optics technology, it is widely used in the fields of astronomical telescope imaging, laser beam shaping, optical communication and so on.
Song, Zongxi +5 more
core +1 more source
Novel unimorph deformable mirror for space applications [PDF]
, 2013 We have developed a new type of unimorph deformable mirror, designed to correct for low-order Zernike modes. The mirror has a clear optical aperture of 50 mm combined with large peak-to-valley Zernike amplitudes of up to 35 μm.
Verpoort, Sven +2 more
core +1 more source
Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich +3 more
wiley +1 more source
An active piezoelectric plane X-ray focusing mirror with a linearly changing thickness
Journal of Synchrotron RadiationX-ray mirrors for synchrotron radiation are often bent into a curved figure and work under grazing-incidence conditions due to the strong penetrating nature of X-rays to most materials.
Naxi Tian +5 more
doaj +1 more source
Micromachines, 2023 A common problem in deformable mirror assembly is that the adhesion of actuators to an optical mirror face sheet introduces unwanted topography due to large local stresses generated at the adhesive joint.
Wenkuan Man, Thomas G. Bifano
doaj +1 more source
Advanced Engineering Materials, EarlyView.Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees +6 more
wiley +1 more source
Adaptive optics design for high-energy kW-class multi-slab laser amplifiers
High Power Laser Science and EngineeringWe demonstrate real-time wavefront correction in a high-energy high-average-power DiPOLE100/Bivoj laser using adaptive optics. A bimorph deformable mirror and a Shack–Hartmann wavefront sensor reduced wavefront error 10-fold and improved the Strehl ratio
Tomáš Paliesek +4 more
doaj +1 more source
Thermal Balance and Active Damping of a Piezoelectric Deformable Mirror for Adaptive Optics
Actuators, 2019 Piezoelectric unimorph deformable mirrors offer a cheap solution to adaptive optics, with mass production capability. However, standard solutions have significant drawbacks: (i) the static shape is sensitive to the temperature, and (ii) the low ...
Kainan Wang +2 more
doaj +1 more source