Optically addressable deformable membrane mirror

Bonora, Stefano; Bortolozzo, U.; Huignard, J.-P.; Residori, Stefania

doi:10.1117/12.858847

Cited by 4 publications

(1 citation statement)

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“…Left (extracted from [15]): an InGaAs photodetector is coupled to a micromachined thin membrane mirror; a picture of a multi-detector prototype is represented, each detector having a different diameter. Right (extracted from [16]): a photorefractive BSO crystal is coupled to a micromachined thin membrane mirror; a bias AC voltage is applied across the DM; illumination spatial variations convert into spatial control of the membrane deflections.…”

Section: Optically Addressed Dmsmentioning

confidence: 99%

Overview of deformable mirror technologies for adaptive optics and astronomy

Madec¹

2012

SPIE Proceedings

104

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From the ardent bucklers used during the Syracuse battle to set fire to Romans' ships to more contemporary piezoelectric deformable mirrors widely used in astronomy, from very large voice coil deformable mirrors considered in future Extremely Large Telescopes to very small and compact ones embedded in Multi Object Adaptive Optics systems, this paper aims at giving an overview of Deformable Mirror technology for Adaptive Optics and Astronomy.First the main drivers for the design of Deformable Mirrors are recalled, not only related to atmospheric aberration compensation but also to environmental conditions or mechanical constraints. Then the different technologies available today for the manufacturing of Deformable Mirrors will be described, pros and cons analyzed. A review of the Companies and Institutes with capabilities in delivering Deformable Mirrors to astronomers will be presented, as well as lessons learned from the past 25 years of technological development and operation on sky. In conclusion, perspective will be tentatively drawn for what regards the future of Deformable Mirror technology for Astronomy.

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Section: Optically Addressed Dmsmentioning

confidence: 99%

Overview of deformable mirror technologies for adaptive optics and astronomy

Madec¹

2012

SPIE Proceedings

104

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Continuous photocontrolled deformable membrane mirror

Bortolozzo

Bonora

Huignard

et al. 2010

Applied Physics Letters

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We present a deformable mirror that is composed by a metalized membrane with a monolithic nonpixelated photoconductive Bi12SiO20 substrate. The assembly constitutes a continuous photocontrolled deformable mirror and is driven through suitable light intensity distributions illuminating the photoconductive element. The continuous deformation of the reflective surface provides an all-optical and dynamical control of the incoming wave front, without spatial segmentation and with a deformation as large as a few microns.

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