dorsal/arxiv
View SchemaConcentrator of laser energy for thin vapour cloud production near a surface
| Authors | P. I. Melnikov, B. A. Knyazev, J. B. Greenly |
|---|---|
| Categories | |
| ArXiv ID | physics/9808003 |
| URL | https://arxiv.org/abs/physics/9808003 |
| DOI | 10.1016/S0168-9002(98)00453-7 |
Abstract
A novel scheme is presented for production of a thin ($<1$ mm) uniform vapor layer over a large surface area ($>100$ cm$^2$) by pulsed laser ablation of a solid surface. Instead of dispersing the laser energy uniformly over the surface, a modified Fabry-Perot interferometer is employed to concentrate the laser energy in very narrow closely-spaced concentric rings. This approach may be optimized to minimum total laser energy for the desired vapor density. Furthermore, since the vapor is produced from a small fraction of the total surface area, the local ablation depth is large, which minimized the fraction of surface contamination in the vapor. Key words: laser evaporation, thin gas layer formation.
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"abstract": "A novel scheme is presented for production of a thin ($\u003c1$ mm) uniform vapor\nlayer over a large surface area ($\u003e100$ cm$^2$) by pulsed laser ablation of a\nsolid surface. Instead of dispersing the laser energy uniformly over the\nsurface, a modified Fabry-Perot interferometer is employed to concentrate the\nlaser energy in very narrow closely-spaced concentric rings. This approach may\nbe optimized to minimum total laser energy for the desired vapor density.\nFurthermore, since the vapor is produced from a small fraction of the total\nsurface area, the local ablation depth is large, which minimized the fraction\nof surface contamination in the vapor.\n Key words: laser evaporation, thin gas layer formation.",
"arxiv_id": "physics/9808003",
"authors": [
"P. I. Melnikov",
"B. A. Knyazev",
"J. B. Greenly"
],
"categories": [
"physics.acc-ph",
"physics.optics"
],
"doi": "10.1016/S0168-9002(98)00453-7",
"title": "Concentrator of laser energy for thin vapour cloud production near a surface",
"url": "https://arxiv.org/abs/physics/9808003"
},
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