DEFORMABLE MIRROR USING MAGNETIC MEMBRANES - APPLICATION TO ADAPTIVE OPTICS IN ASTROPHYSICS

Authors
DIVOUX C CUGAT O REYNE G BOUSSEYSAID J BASROUR S
Citation
C. Divoux et al., DEFORMABLE MIRROR USING MAGNETIC MEMBRANES - APPLICATION TO ADAPTIVE OPTICS IN ASTROPHYSICS, IEEE transactions on magnetics, 34(5), 1998, pp. 3564-3567
Citations number
4
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
34
Issue
5
Year of publication
1998
Part
1
Pages
3564 - 3567
Database
ISI
SICI code
0018-9464(1998)34:5<3564:DMUMM->2.0.ZU;2-2
Abstract
An alternative approach to more compact deformable mirrors for adaptiv e optics is developed. A thin and flexible reflective membrane is coat ed with a magnetic layer and locally deformed by the field created by an array of planar microcoils. This novel technology should enable hig her resolution with smaller, lighter integrated mirrors. Several compl ementary modelling tools are used to study the electromagnetic, mechan ical, magneto-mechanical and thermal behaviour of the device. A first prototype of phi 30 mm mirror with a matrix of permanent magnets and a n array of 25 microcoils is under construction.