Share Email Print
cover

Proceedings Paper

Photocontrolled deformable mirrors as potential technology for astronomical instrumentation
Author(s): Martino Quintavalla; Stefano Bonora; Dario Natali; Andrea Bianco
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Deformable mirrors are key optical elements in modern astronomical telescopes and instrumentation both for active and adaptive optical systems. Different technological approaches have been exploited for the realization of the deformable mirrors, especially for adaptive optics devices. A new approach is here presented, namely the photo-controlled deformable mirrors, where the size and density of actuators is set by an illumination pattern projected on the back side of a photoconductor. The working principle and an electric model are presented highlighting the features of the material that affect the performances of the mirror in terms of dynamic range and response time. Based on these results, a prototype exploiting ZnSe as photoconductor is reported together with its characterization.

Paper Details

Date Published: 22 July 2016
PDF: 8 pages
Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 99126X (22 July 2016); doi: 10.1117/12.2234163
Show Author Affiliations
Martino Quintavalla, INAF - Osservatorio Astronomico di Brera (Italy)
CNR - Istituto di Fotonica e Nanotecnologie (Italy)
Stefano Bonora, CNR - Istituto di Fotonica e Nanotecnologie (Italy)
Dario Natali, Politecnico di Milano (Italy)
Andrea Bianco, INAF - Osservatorio Astronomico di Brera (Italy)


Published in SPIE Proceedings Vol. 9912:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II
Ramón Navarro; James H. Burge, Editor(s)

© SPIE. Terms of Use
Back to Top