Method and apparatus for reducing coherence of high-power laser

Details Method and apparatus for reducing coherence of high-power laser Method and apparatus for reducing coherence of high-power laser

1976-05-19

1978-09-26

Corbin, John K.

Electric heating

Microwave heating

Tunnel furnace

219121LM, 350151, G02B 000

Patent

active

041165420

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.

REFERENCES:
patent: 3484152 (1969-12-01), Robinson
patent: 3489645 (1970-01-01), Daiber et al.
patent: 3866139 (1975-02-01), Currie
patent: 3881084 (1975-04-01), Boardsen
patent: 3898587 (1975-08-01), Brinkman et al.
patent: 3937917 (1976-02-01), Consoli
patent: 4019151 (1977-04-01), Brueckner et al.

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