Multidielectric mirror for carbon dioxide laser providing the mi

Details Multidielectric mirror for carbon dioxide laser providing the mi Multidielectric mirror for carbon dioxide laser providing the mi

1987-10-26

1989-06-20

Bovernick, Rodney B.

Stock material or miscellaneous articles

Composite

Of bituminous or tarry residue

350164, 428333, G02B 110, G02B 500, B32B 3300

Patent

active

048404420

ABSTRACT:
A multidielectric mirror, in particular for the mid infrared, in which the last optical layer of a multidielectric stack is constituted by a composite layer including a thin protective surface layer of a material of amorphous structure together with a high index and very low absorption dielectric layer, with the thicknesses of these two layers being designed to obtain maximum reflectance given the indices of these materials. The protective layer is preferably made of amorphous hydrogenated silicon. The invention is applicable, in particular, to making carbon dioxide power lasers.

REFERENCES:
patent: 4388344 (1983-06-01), Shuskus et al.
OG abstract of U.S. Patent #3,432,225 (Rock, 3-11-69).
Applied Optics, vol. 18, No. 17, Sep. 1979, pp. 2979-2989, Optical Society of America, New York; USA, A. M. Ledger: "Inhomogeneous Interface Laser Mirror Coatings".

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