NASA 1996 SBIR Phase I


PROPOSAL NUMBER : 96-1 11.03-0181

PROJECT TITLE : Low Temperature Deformable Mirror Technology

TECHNICAL ABSTRACT (LIMIT 200 WORDS)

Xinetics proposes to demonstrate in this program the technology for cryogenic temperature (30K) deformable mirrors (DM) for use in correcting the optical wavefront of a large cold telescope. It offers a revolutionary development in electroceramic materials which is to the 30 to 50 (K regime what Lead-Magnesium-Niobate (PMN) is to the 280 to 300 (K regime. The active element is an analog of (PMN), the electrostrictive material used in all of Xinetics commercial room temperature deformable mirrors. During Phase I, we intend to confirm and extend the cryogenic response data for various candidate materials, use these in our models to predict actuator and DM performance, and develop a baseline design and fabrication approach for the cryogenic DM. At the same time, we will evaluate the alternative designs for the low temperature amplifiers and switching electronics required for efficient operation of the DMs.

At the end of Phase I, we will be ready to embark upon a Phase II demonstration, starting with low temperature actuators for evaluation in a NASA facility, and concluding with an operating cryogenic DM.

POTENTIAL COMMERCIAL APPLICATIONS
Deformable mirrors for general amateur and professional observatory use, at all nighttime temperatures without special thermal control. Precision alignment of devices in thermal vacuum chambers at all temperatures. Enhanced optical stability of cryogenic structures using the new generation electroceramic to provide subnanometer control.
NAME AND ADDRESS OF PRINCIPAL INVESTIGATOR
Xinetics, Inc.
410 Great Road #A6
Littleton, MA 01460
NAME AND ADDRESS OF OFFEROR
Xinetics, Inc.
410 Great Road #A6
Littleton, MA 01460