Suppressing low-order eigenmodes with local control for deformable mirrors
(2012) In Optical Engineering 51(2).- Abstract
- To improve the mechanical characteristics of actively controlled continuous faceplate deformable mirrors in adaptive optics, a strategy for reducing crosstalk between adjacent actuators and for suppressing low-order eigenmodes is proposed. The strategy can be seen as extending Saint-Venant's principle beyond the static case, for small local families of actuators. An analytic model is presented, from which we show the feasibility of the local control. Also, we demonstrate how eigenmodes and eigenfrequencies are affected by mirror parameters, such as thickness, diameter, Young's modulus, Poisson's ratio, and density. This analysis is used to evaluate the design strategy for a large deformable mirror, and how many actuators are needed within... (More)
- To improve the mechanical characteristics of actively controlled continuous faceplate deformable mirrors in adaptive optics, a strategy for reducing crosstalk between adjacent actuators and for suppressing low-order eigenmodes is proposed. The strategy can be seen as extending Saint-Venant's principle beyond the static case, for small local families of actuators. An analytic model is presented, from which we show the feasibility of the local control. Also, we demonstrate how eigenmodes and eigenfrequencies are affected by mirror parameters, such as thickness, diameter, Young's modulus, Poisson's ratio, and density. This analysis is used to evaluate the design strategy for a large deformable mirror, and how many actuators are needed within a family. (c) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.OE.51.2.026601] (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2571443
- author
- Heimsten, Rikard LU ; Owner-Petersen, Mette LU ; Ruppel, Thomas ; MacMynowski, Douglas G. and Andersen, Torben LU
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- distributed control, adaptive optics, large deformable mirror, dimensionless mode analysis
- in
- Optical Engineering
- volume
- 51
- issue
- 2
- publisher
- SPIE
- external identifiers
-
- wos:000302779500039
- scopus:84871782780
- ISSN
- 0091-3286
- DOI
- 10.1117/1.OE.51.2.026601
- language
- English
- LU publication?
- yes
- id
- 5ed7a34c-fd0c-41d5-ba93-3fea5604ae1a (old id 2571443)
- date added to LUP
- 2016-04-01 12:57:58
- date last changed
- 2024-01-09 06:08:59
@article{5ed7a34c-fd0c-41d5-ba93-3fea5604ae1a, abstract = {{To improve the mechanical characteristics of actively controlled continuous faceplate deformable mirrors in adaptive optics, a strategy for reducing crosstalk between adjacent actuators and for suppressing low-order eigenmodes is proposed. The strategy can be seen as extending Saint-Venant's principle beyond the static case, for small local families of actuators. An analytic model is presented, from which we show the feasibility of the local control. Also, we demonstrate how eigenmodes and eigenfrequencies are affected by mirror parameters, such as thickness, diameter, Young's modulus, Poisson's ratio, and density. This analysis is used to evaluate the design strategy for a large deformable mirror, and how many actuators are needed within a family. (c) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.OE.51.2.026601]}}, author = {{Heimsten, Rikard and Owner-Petersen, Mette and Ruppel, Thomas and MacMynowski, Douglas G. and Andersen, Torben}}, issn = {{0091-3286}}, keywords = {{distributed control; adaptive optics; large deformable mirror; dimensionless mode analysis}}, language = {{eng}}, number = {{2}}, publisher = {{SPIE}}, series = {{Optical Engineering}}, title = {{Suppressing low-order eigenmodes with local control for deformable mirrors}}, url = {{https://lup.lub.lu.se/search/files/3076589/2970509.pdf}}, doi = {{10.1117/1.OE.51.2.026601}}, volume = {{51}}, year = {{2012}}, }