Thermally stabile GRISMs

Details Thermally stabile GRISMs Thermally stabile GRISMs

2007-12-11

2007-12-11

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Prism

C359S837000, C359S015000, C359S566000, C385S037000

Reexamination Certificate

active

11333046

ABSTRACT:
Thermally stable GRISMs comprise a substrate and cover plate composed of a first material keeps the spatial frequency of the grating stable with temperature, and a prism composed of a second material having lower thermal coefficient of refractive index than that of the first material. In the preferred embodiment, the first material is fused silica, and the second material is BK7 glass.

REFERENCES:
patent: 6829090 (2004-12-01), Katsumata et al.
patent: 2004/0070853 (2004-04-01), Ebizuka et al.
patent: 2004/0223201 (2004-11-01), Dickson
patent: 2005/0243421 (2005-11-01), Arns
HandBook of Optics, vol. II, M.Bass Editor, McGraw-Hill, pp. 33.58, 33.60 (1995).

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