System and method for ablation assisted nanostructure formation for graded index surfaces for optics

Patent · Tue Dec 13 00:00:00 EST 2022

OSTI ID:1986927

Yoo, Jae Hyuck; Feigenbaum, Eyal

A system and method is disclosed for forming a graded index (GRIN) on a substrate. In one implementation the method may involve applying a metal layer to the substrate. A fluence profile of optical energy applied to the metal layer may be controlled to substantially ablate the metal layer to create a vaporized metal layer. The fluence profile may be further controlled to control a size of metal nanoparticles created from the vaporized metal layer as the vaporized metal layer condenses and forms metal nanoparticles, the metal nanoparticles being deposited back on the substrate to form a GRIN surface on the substrate.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-07NA27344
• Assignee: Lawrence Livermore National Security, LLC (Livermore, CA)
• Patent Number(s): 11,525,945
• Application Number: 16/016,105
• OSTI ID: 1986927
• Resource Relation: Patent File Date: 06/22/2018
• Country of Publication: United States
• Language: English