Share Email Print
cover

Proceedings Paper

Fabrication of a 20.5-inch-diameter segmented silicon annular optic prototype for the ROMA program
Author(s): Frank R. Hassell; Frank M. Groark
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Recent advancements in single crystal silicon material science and fabrication capabilities and very low absorption (VLA) multi-layer dielectric coating technology have led to the development of uncooled, large aperture, high power mirrors for high energy laser (HEL) systems. Based on this success, a segmented single-crystal silicon substrate concept has been selected as the baseline fabrication approach for uncooled 1.2 meter diameter resonator annular optics for the Alpha space based high energy laser. The objective of this Resonator Optics Materials Assessment (ROMA) task was to demonstrate all of the key fabrication processes required to fabricate the full sized annular optics for the Alpha space based high energy laser. This paper documents the fabrication of a half-scale annular optic prototype (AOP) of the Alpha laser rear cone.

Paper Details

Date Published: 23 October 1995
PDF: 14 pages
Proc. SPIE 2543, Silicon Carbide Materials for Optics and Precision Structures, (23 October 1995); doi: 10.1117/12.225281
Show Author Affiliations
Frank R. Hassell, TRW, Inc. (United States)
Frank M. Groark, TRW, Inc. (United States)


Published in SPIE Proceedings Vol. 2543:
Silicon Carbide Materials for Optics and Precision Structures
Mark A. Ealey, Editor(s)

© SPIE. Terms of Use
Back to Top