scholarly journals Dynamic Aberration Correction for Conformal Window of High-Speed Aircraft Using Optimized Model-Based Wavefront Sensorless Adaptive Optics

Sensors ◽  
2016 ◽  
Vol 16 (9) ◽  
pp. 1414 ◽  
Author(s):  
Bing Dong ◽  
Yan Li ◽  
Xin-li Han ◽  
Bin Hu
Keyword(s):  
Adaptive Optics ◽  
High Speed ◽  
Aberration Correction ◽  
Conformal Window ◽  
Model Based ◽  
Optimized Model

scholarly journals Model-based aberration correction in a closed-loop wavefront-sensor-less adaptive optics system

2010 ◽  
Vol 18 (23) ◽  
pp. 24070 ◽  
Author(s):  
H. Song ◽  
R. Fraanje ◽  
G. Schitter ◽  
H. Kroese ◽  
G. Vdovin ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Closed Loop ◽  
Wavefront Sensor ◽  
Aberration Correction ◽  
Model Based ◽  
Adaptive Optics System

A high speed model-based approach for wavefront sensorless adaptive optics systems

2018 ◽  
Vol 99 ◽  
pp. 124-132 ◽  
Author(s):  
Wen Lianghua ◽  
Ping Yang ◽  
Wang Shuai ◽  
Liu Wenjing ◽  
Chen Shanqiu ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
High Speed ◽  
Model Based

Data driven identification and aberration correction for model-based sensorless adaptive optics

2012 ◽  
Author(s):  
J. Antonello ◽  
R. Fraanje ◽  
H. Song ◽  
M. Verhaegen ◽  
H. Gerritsen ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Data Driven ◽  
Aberration Correction ◽  
Model Based

scholarly journals A micromirror array with annular partitioning for high-speed random-access axial focusing

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Nathan Tessema Ersumo ◽  
Cem Yalcin ◽  
Nick Antipa ◽  
Nicolas Pégard ◽  
Laura Waller ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Visual Information ◽  
High Speed ◽  
Random Access ◽  
General Purpose ◽  
Phase Shifting ◽  
Optical Systems ◽  
Piston Motion ◽  
Refresh Rate ◽  
Circular Symmetry

Abstract Dynamic axial focusing functionality has recently experienced widespread incorporation in microscopy, augmented/virtual reality (AR/VR), adaptive optics and material processing. However, the limitations of existing varifocal tools continue to beset the performance capabilities and operating overhead of the optical systems that mobilize such functionality. The varifocal tools that are the least burdensome to operate (e.g. liquid crystal, elastomeric or optofluidic lenses) suffer from low (≈100 Hz) refresh rates. Conversely, the fastest devices sacrifice either critical capabilities such as their dwelling capacity (e.g. acoustic gradient lenses or monolithic micromechanical mirrors) or low operating overhead (e.g. deformable mirrors). Here, we present a general-purpose random-access axial focusing device that bridges these previously conflicting features of high speed, dwelling capacity and lightweight drive by employing low-rigidity micromirrors that exploit the robustness of defocusing phase profiles. Geometrically, the device consists of an 8.2 mm diameter array of piston-motion and 48-μm-pitch micromirror pixels that provide 2π phase shifting for wavelengths shorter than 1100 nm with 10–90% settling in 64.8 μs (i.e., 15.44 kHz refresh rate). The pixels are electrically partitioned into 32 rings for a driving scheme that enables phase-wrapped operation with circular symmetry and requires <30 V per channel. Optical experiments demonstrated the array’s wide focusing range with a measured ability to target 29 distinct resolvable depth planes. Overall, the features of the proposed array offer the potential for compact, straightforward methods of tackling bottlenecked applications, including high-throughput single-cell targeting in neurobiology and the delivery of dense 3D visual information in AR/VR.

Differentiable Model-based Adaptive Optics for Microscopy

2021 ◽  
Author(s):  
Ivan Vishniakou ◽  
Johannes D. Seelig
Keyword(s):  
Adaptive Optics ◽  
Model Based

Photoinduced AsSeS thin film phase plates as adaptive optics mirrors for eye aberration correction

2008 ◽  
Author(s):  
S. Fomins ◽  
M. Reinfelde ◽  
A. Larichev ◽  
N. Iroshnikov ◽  
A. Gerbreders ◽  
...  
Keyword(s):  
Thin Film ◽  
Adaptive Optics ◽  
Aberration Correction ◽  
Phase Plates
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