Ion Beam Superpolishing of Metal Mirrors for High Energy Lasers.
Final engineering rept.,
FRANKFORD ARSENAL PHILADELPHIA PA
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A new process has been developed which employs a low energy ion beam to superpolish metal surfaces. The process is applicable in principle to all metals. This technique overcomes the tendency of metal surfaces to develop etch patterns and other surface irregularities during ion beam bombardment. The process produces superpolished optical surfaces significantly superior to those formed by conventional optical polishing or metallurgical techniques. Because ions of inert gases are employed for the superpolishing process the resultant surface is uncontaminated in contrast to conventional optical, chemical or metallurgical methods which result in diffusion of abrasion contamination or bronzed surfaces. In addition, this process may be employed for final figuring of optical surfaces. Author
- Lasers and Masers
- Particle Accelerators