Results 281 to 290 of about 644,059 (323)
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Elastic Deformation of Lightweight Mirrors
Applied Optics, 1973Results of analytical and experimental studies on the elastic deformation of lightweight mirrors under various support conditions are presented and compared. The analytical results were obtained using the finite-element method, which employs elements having stretching, bending, and twisting capability. Both structural deformation and deviation from the
R. M. Richard, A. J. Malvick
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Bimorph deformable mirror with a high density of electrodes to correct for atmospheric distortions.
Applied Optics, 2019This paper presents a new development of small-diameter, high-spatial-resolution, semipassive bimorph deformable mirrors to be used in different imaging systems. To manufacture the small control elements, laser engraving technology is used. An ultrasonic
V. Toporovskiy +6 more
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Continuously Deformable Mirrors
SPIE Proceedings, 1987Low spatial and temporal frequency correction of optical wavefronts can be achieved with continuously deformable mirrors that are being developed by the Atomic Vapor Laser Isotope Separation (AVLIS) Program at Lawrence Livermore National Laboratory. These devices are simple in design, low in cost, require relatively few actuators, and are capable of ...
Richard H. Sawicki, William C. Sweatt
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Advances of TNO’s electromagnetic deformable mirror development
Astronomical Telescopes + Instrumentation, 2018TNO is developing Deformable Mirror (DM) technology, targeted for aberration correction in high-end Adaptive Optics (AO) applications in the field of lithography, astronomy, space and laser communication. The heart of this deformable mirror technology is
S. Kuiper +5 more
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Water-cooled stacked-actuator deformable mirror for atmospheric applications
Optical Engineering + Applications, 2019High-power laser systems are widely used for technological purposes or laser fusion experiments, but also to deliver the energy to some remote places here on the Earth as well as in space.
V. Toporovskiy +4 more
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SPIE Proceedings, 1992
This technical paper describes a new unique form of deformable mirror that was engineered, designed, and built at Hughes Danbury Optical Systems. This paper discusses the current state of the art, the requirements, configuration, and special features such as the choice of materials for the mirror, interchangeable actuators, cooling technique and ...
David Kittell, Carlo La Fiandra
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This technical paper describes a new unique form of deformable mirror that was engineered, designed, and built at Hughes Danbury Optical Systems. This paper discusses the current state of the art, the requirements, configuration, and special features such as the choice of materials for the mirror, interchangeable actuators, cooling technique and ...
David Kittell, Carlo La Fiandra
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LASE, 2019
Thermal effects in the active laser medium influence on the quality of the laser beam in high-power laser systems. Temperature fluctuations lead to refractive index modulation in the medium, thus the intensity of the radiation is significantly reduced ...
V. Toporovsky +4 more
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Thermal effects in the active laser medium influence on the quality of the laser beam in high-power laser systems. Temperature fluctuations lead to refractive index modulation in the medium, thus the intensity of the radiation is significantly reduced ...
V. Toporovsky +4 more
semanticscholar +1 more source
High-contrast imaging stability using MEMS deformable mirror
Optical Engineering + Applications, 2019Direct imaging of Earth-like exoplanets in reflected starlight requires high contrast imaging systems, such as coronagraph, with starlight suppression better than 1e-10 over a broad spectral band.
Camilo A. Mejia Prada +2 more
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LC phase modulator vs. deformable mirror for laser beam shaping: What is better?
Optical Engineering + Applications, 2018The latest results on intensity distribution transformation from Gaussian to a flattop and doughnut are presented in the paper. The wavefront was modified with bimorph deformable mirror to reach the desired intensity distribution in the farfield.
J. Sheldakova +4 more
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Fully Organic Photocontrolled Deformable Mirror
Advanced Optical Materials, 2018AbstractA light‐driven deformable mirror based on an organic photoconductive layer is designed and realized. The requirements for the photoconductive organic material are reported showing their effect on the mirror performances. The production and characterization of the photoconductive thick layer consisting in a polystyrene matrix doped with P3HT ...
Martino Quintavalla +7 more
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