High power reflectors for laser technology

Details High power reflectors for laser technology High power reflectors for laser technology

1988-12-06

1993-09-07

Moskowitz, Nelson

Coherent light generators

Particular resonant cavity

Specified cavity component

359 546, 359838, G02B 508, G02B 718

Patent

active

052436209

ABSTRACT:
A polished high-intensity reflector of copper, silver or gold for laser applications. In contrast to known mirrors of electrolytic copper whose surface is permeated with grain interfaces, this new mirror is constituted by the surface of single crystals. This surface may be polished. Alternatively this surface may be formed by copper single crystals etched in the (100)- or (111)-orientation planes. In the latter case crystallites making up the surface contain etching pits each of which form small spherical mirrors of their own. Mirrors with etched surface withstand higher laser energies than mirrors with polished surface. As a shield protecting against laser beams several single crystal mirrors may be combined in arrays. The reflecting surface may be either flat or curved.

REFERENCES:
patent: 4192695 (1980-03-01), Mahalla
patent: 4214818 (1980-07-01), Choyke et al.
patent: 4312667 (1982-01-01), Guertin
patent: 4679915 (1987-07-01), Kriz et al.
Choyke et al, "SiC, a New Material for Mirrors", Sep. 1976, pp. 2006-2007, Appl. Opt., vol. 15, #9.
Leshenyuh et al, "Crystal Reflectors as . . . Lasers", pp. 769-771, Journ. of Appl. Spect., vol. 22, #6.
Rofin, "Zirconium-Copper Mirrors . . . Lasers", 71, pp. 871, ad by Oriel Corp. of Stamford, Conn.
Blevins et al, "Plated Copper Substrates . . . CO2 Laser System", Conf. Proc. Soc. Photo-Opt. Inst. Eng., L. A., Calif., Jan. 23, 1979 pp. 125-130.

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