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Proceedings Paper

Micromachined silicon deformable mirror
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Paper Abstract

A new silicon deformable mirror design is presented which provides high reflectivity, an optical quality continuous surface, and high intensity handling capacity. Its features make it useful for a wide range of devices including telescopes, leasers, and photolithographic systems. The mirror architecture is similar to commercial electrostrictive deformable mirrors. A focus corrector built using this architecture exhibited 2.25 microns of actuation at the center through the application of 100v corresponding to a radius of curvature of -2.4m. A 30 micrometers thick 1cm diameter silicon mirrors exhibited its first mechanical resonance at 2.7kHz. A mirror coated with 100nm of gold was shown to be able to withstand 100kW/cm2 of continuous wave 1064nm intensity for 10 minutes without observable degradation. An active mode-matching experiment was performed showing that 99.5 percent of a Nd:YAG beam could be coupled to a finesse 4000 ring cavity.

Paper Details

Date Published: 11 September 1998
PDF: 6 pages
Proc. SPIE 3353, Adaptive Optical System Technologies, (11 September 1998); doi: 10.1117/12.321668
Show Author Affiliations
Justin D. Mansell, Stanford Univ. (United States)
Robert L. Byer, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 3353:
Adaptive Optical System Technologies
Domenico Bonaccini; Robert K. Tyson, Editor(s)

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