| Popis: |
We present the development of large aperture fabricated input surface sites (~1-2 mm size) designed to “shadow” damage sites on the exit surface and arrest their further growth. The inherent expanding wave which leads to exit surface damage, motivates our diversion from a conic shape and development of more intricate geometries. We discuss the design considerations, the fabrication and resulting geometries, the optical modeling of light propagation through these geometries, the imaging of the shadowed region as well as the damage-inducing expanding wave intensification they lead to, and the large beam damage testing and their analysis. |
