LLNL researchers developed a novel strategy that involves material transformations such as oxidation, nitridation, or carbonization. In one embodiment, copper is heated under ambient conditions resulting in its surface being oxidized and turned into copper oxide, where a new material (e.g., copper oxide) is developed via transformation (e.g., oxidation) without additional addition deposition…
Keywords
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- Substrate Engraved Meta-Surface (SEMS) (6)
- Compact Space Telescopes (5)
- Diode Lasers (4)
- Laser Materials Processing (4)
- Optical Damage Mitigation (3)
- RF Photonics (3)
- Additively Manufactured (AM) Optics (2)
- Fiber Lasers (2)
- Ultrashort Pulse Lasers (2)
- Additive Manufacturing (1)
- Manufacturing Simulation (1)
- Precision Engineering (1)
- Sensors (1)
- (-) Precision Optical Finishing (4)
Technology Portfolios
This invention takes advantage of the high water-solubility of key NIF KDP crystal optics and uses water as an etchant to remove surface defects and improve the laser induced damage threshold. Since pure water etches KDP too fast, this invention is to disperse water as nanosized droplets in a water-in-oil micro-emulsion. While in a stable micro-emulsion form, the surfactant additives prevent…
This invention proposes to use laser induced melting/softening to locally reshape the form of a glass optic. The local glass densification that results induces predictable stresses that through plate deformation mechanics yield a deterministic methodology for arbitrarily reshaping an optic surface figure and wavefront without the need to remove material.
LLNL's Slurry Stabilization Method provides a chemical means of stabilizing a polishing compound in suspension at working concentrations without reducing the rate of material removal. The treated product remains stable for many months in storage.