Research on the particular temperature-induced surface shape of a National Ignition Facility deformable mirror

2013 ◽  
Vol 52 (2) ◽  
pp. 280 ◽  
Author(s):  
Qiao Xue ◽  
Lei Huang ◽  
Ping Yan ◽  
Mali Gong ◽  
Zexin Feng ◽  
...  
Keyword(s):  
Surface Shape ◽  
Deformable Mirror ◽  
National Ignition Facility

scholarly journals Wide aperture piezoceramic deformable mirrors for aberration correction in high-power lasers

2016 ◽  
Vol 4 ◽  
Author(s):  
Vadim Samarkin ◽  
Alexander Alexandrov ◽  
Gilles Borsoni ◽  
Takahisa Jitsuno ◽  
Pavel Romanov ◽  
...  
Keyword(s):  
High Power ◽  
Surface Shape ◽  
Wavefront Sensor ◽  
Deformable Mirror ◽  
Deformable Mirrors ◽  
Aberration Correction ◽  
Response Functions ◽  
Fizeau Interferometer ◽  
High Power Lasers ◽  
Wide Aperture

The deformable mirror with the size of $410~\text{mm}\times 468~\text{mm}$ controlled by the bimorph piezoceramic plates and multilayer piezoceramic stacks was developed. The results of the measurements of the response functions of all the actuators and of the surface shape of the deformable mirror are presented in this paper. The study of the mirror with a Fizeau interferometer and a Shack–Hartmann wavefront sensor has shown that it was possible to improve the flatness of the surface down to a residual roughness of $0.033~{\rm\mu}\text{m}$ (RMS). The possibility of correction of the aberrations in high-power lasers was numerically demonstrated.

Fabrication and Characterization of MEMS Deformable Mirrors for Adaptive Optics

2006 ◽  
Author(s):  
Hyunkyu Park ◽  
David Horsley
Keyword(s):  
Adaptive Optics ◽  
Laser Doppler Vibrometer ◽  
Surface Shape ◽  
Analytical Models ◽  
Deformable Mirror ◽  
Experimental Measurements ◽  
Vision Science ◽  
Step Voltage ◽  
Fabrication And Characterization

A bimorph deformable mirror (DM) for use in ophthalmologic adaptive optics is presented. The fabrication process and the results of characterization of the DM are described. Interferometric measurements of the DM surface shape and voltage-to-displacement characteristics are shown. The response of the DM to a step voltage input is measured using a commercial laser Doppler vibrometer (LDV). Experimental measurements of the DM are compared with both finite-element and analytical models. Analysis of the experimental measurements compared to the theoretical model will be used to design and fabricate an optimized DM for vision science.

Modeling and Control of a Deformable Mirror

2002 ◽  
Vol 124 (2) ◽  
pp. 297-302 ◽  
Author(s):  
S. E. Winters ◽  
J. H. Chung ◽  
S. A. Velinsky
Keyword(s):  
Finite Element ◽  
Control System ◽  
Finite Element Model ◽  
Adaptive Optics ◽  
Element Model ◽  
Surface Shape ◽  
System Model ◽  
Deformable Mirror ◽  
Wavefront Aberration ◽  
Control System Model

A multi-input multi-output surface shape control system model is developed to study wavefront aberration correction. The plant model represents a deformable mirror and utilizes a finite element model that is validated using an actual prototype deformable mirror and an interferometer system. The sensor model is based on a Shack-Hartmann sensor, and the controller model is based on a least squares approach. The control system model is used to compare an available Gaussian model with the validated finite element model. Results clearly show the efficacy of the approach and the superiority of the finite element based method. The control approach is expected to be implemented on the adaptive optics system of the National Ignition Facility.

Comparison of Surface Shape Control Algorithms for Deformable Mirror

2013 ◽  
Author(s):  
Tenghao Li ◽  
Lei Huang ◽  
Zexin Feng ◽  
Yuntao Qiu ◽  
Qiao Xue ◽  
...  
Keyword(s):  
Shape Control ◽  
Surface Shape ◽  
Deformable Mirror ◽  
Control Algorithms

Effect of the particular temperature field on a National Ignition Facility deformable mirror

2016 ◽  
Vol 374 ◽  
pp. 119-126 ◽  
Author(s):  
Qi Bian ◽  
Lei Huang ◽  
Xingkun Ma ◽  
Qiao Xue ◽  
Mali Gong
Keyword(s):  
Temperature Field ◽  
Deformable Mirror ◽  
National Ignition Facility

Mass distribution of hydrodynamic jets produced on the national ignition facility

2006 ◽  
Vol 133 ◽  
pp. 107-110 ◽  
Author(s):  
B. E. Blue ◽  
S. V. Weber ◽  
D. T. Woods ◽  
M. J. Bono ◽  
S. N. Dixit ◽  
...  
Keyword(s):  
Mass Distribution ◽  
National Ignition Facility

Large-aperture deformable mirror correction of tiled-grating wavefront error

2006 ◽  
Vol 133 ◽  
pp. 645-648 ◽  
Author(s):  
B. E. Kruschwitz ◽  
R. Jungquist ◽  
J. Qiao ◽  
S. Abbey ◽  
S. E. Dean ◽  
...  
Keyword(s):  
Deformable Mirror ◽  
Large Aperture ◽  
Wavefront Error

Study and manufacture of a novel micro-deformable mirror

2003 ◽  
Author(s):  
Hongbin Yu ◽  
Haiqing Chen ◽  
Zimin Zhu ◽  
Chao Wang ◽  
Dacheng Zhang ◽  
...  
Keyword(s):  
Deformable Mirror
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