A heuristic approach for actuator layout designs in deformable mirror devices based on current value optimization
Sign Up to like & getrecommendations! Published in 2018 at "Structural and Multidisciplinary Optimization"
DOI: 10.1007/s00158-018-1968-5
Abstract: Deformable mirrors are vital components in fundus imaging modality incorporating adaptive optics systems. The application of precisely controlled electric currents to multiple electrodes located under the mirror surface deform its shape so that optical aberrations… read more here.
Keywords: shape; deformable mirror; number; actuator layout ... See more keywords
Impact of large field angles on the requirements for deformable mirror in imaging satellites
Sign Up to like & getrecommendations! Published in 2018 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2018.01.001
Abstract: Abstract For certain imaging satellite missions, a large aperture with wide field-of-view is needed. In order to achieve diffraction limited performance, the mirror surface Root Mean Square (RMS) error has to be less than 0.05… read more here.
Keywords: field angles; large field; deformable mirror; impact large ... See more keywords
Design and analysis of a high accuracy bidirectional thermal deformable mirror
Sign Up to like & getrecommendations! Published in 2019 at "Optical Engineering"
DOI: 10.1117/1.oe.58.10.105102
Abstract: Abstract. To realize an efficient, low-cost, and two-way heat-driven deformable mirror, a deformable mirror-integrated structure using a thermoelectric cooler is proposed. The bidirectional heat-driven stroke, thermal field distribution, and deformation were obtained by finite element… read more here.
Keywords: mirror; deformed mirror; design analysis; analysis high ... See more keywords
Sensor for dynamic focus control of a deformable mirror
Sign Up to like & getrecommendations! Published in 2020 at "Applied Optics"
DOI: 10.1364/ao.392970
Abstract: We recently presented a novel unimorph deformable mirror which allows for dynamic focus shift with an actuation rate of 2 kHz. Such mirrors suffer from hysteresis and creep. Therefore, they have to be operated in… read more here.
Keywords: deformable mirror; sensor dynamic; dynamic focus;
Influence functions for a hysteretic deformable mirror with a high-density 2D array of actuators.
Sign Up to like & getrecommendations! Published in 2020 at "Applied optics"
DOI: 10.1364/ao.397472
Abstract: We present modeling and analysis of a hysteretic deformable mirror where the facesheet interacts with a continuous layer of piezoelectric material that can be actuated distributively by a matrix of electrodes through multiplexing. Moreover, a… read more here.
Keywords: high density; hysteretic deformable; array actuators; density array ... See more keywords
Piezoelectric deformable mirror driven by unimorph actuator arrays on multi-spatial layers.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.485078
Abstract: In order to reduce the cost of the piezo actuator array deformable mirror (DM), a piezoelectric DM driven by unimorph actuator arrays on multi-spatial layers is proposed. The actuator density can be multiplied by increasing… read more here.
Keywords: unimorph actuator; actuator; deformable mirror; driven unimorph ... See more keywords
Wavefront Shaping by a Small-Aperture Deformable Mirror in the Front Stage for High-Power Laser Systems
Sign Up to like & getrecommendations! Published in 2017 at "Applied Sciences"
DOI: 10.3390/app7040379
Abstract: We demonstrate a method for wavefront distribution compensation with a low-cost small-aperture deformable mirror in the front stage of a complex high-power solid-state laser system. Meanwhile, an iterative algorithm for improving wavefront quality is indicated.… read more here.
Keywords: high power; laser; small aperture; power ... See more keywords