Method and apparatus for reducing coherence of high-power laser beams
Abstract
Method and apparatus for reducing the coherence and for smoothing the power density profile of a collimated high-power laser beam in which the beam is focused at a point on the surface of a target fabricated of material having a low atomic number. The initial portion of the focused beam heats the material to form a hot reflective plasma at the material surface. The remaining, major portion of the focused beam is reflected by the plasma and recollected to form a collimated beam having reduced beam coherence.
- Inventors:
-
- Ann Arbor, MI
- Issue Date:
- OSTI Identifier:
- 863189
- Patent Number(s):
- 4116542
- Assignee:
- KMS Fusion, Inc. (Ann Arbor, MI)
- Patent Classifications (CPCs):
-
G - PHYSICS G21 - NUCLEAR PHYSICS G21B - FUSION REACTORS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
- DOE Contract Number:
- E(11-1)-2709
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; apparatus; reducing; coherence; high-power; laser; beams; smoothing; power; density; profile; collimated; beam; focused; surface; target; fabricated; material; atomic; initial; portion; heats; form; hot; reflective; plasma; remaining; major; reflected; recollected; reduced; high-power laser; density profile; laser beams; laser beam; material surface; power laser; major portion; power density; collimated beam; focused beam; /359/219/376/
Citation Formats
Moncur, Norman K, and Mayer, Frederick J. Method and apparatus for reducing coherence of high-power laser beams. United States: N. p., 1978.
Web.
Moncur, Norman K, & Mayer, Frederick J. Method and apparatus for reducing coherence of high-power laser beams. United States.
Moncur, Norman K, and Mayer, Frederick J. Sun .
"Method and apparatus for reducing coherence of high-power laser beams". United States. https://www.osti.gov/servlets/purl/863189.
@article{osti_863189,
title = {Method and apparatus for reducing coherence of high-power laser beams},
author = {Moncur, Norman K and Mayer, Frederick J},
abstractNote = {Method and apparatus for reducing the coherence and for smoothing the power density profile of a collimated high-power laser beam in which the beam is focused at a point on the surface of a target fabricated of material having a low atomic number. The initial portion of the focused beam heats the material to form a hot reflective plasma at the material surface. The remaining, major portion of the focused beam is reflected by the plasma and recollected to form a collimated beam having reduced beam coherence.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}
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