UV photosensitive melted glasses

Details UV photosensitive melted glasses UV photosensitive melted glasses

2005-01-18

2005-01-18

Group, Karl (Department: 1755)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S054000, C501S066000

Reexamination Certificate

active

06844277

ABSTRACT:
The present invention relates generally to UV (ultraviolet) photosensitive bulk glass, and particularly to batch meltable alkali boro-alumino-silicate glasses. The photosensitive bulk glass of the invention exhibits photosensitivity to UV wavelengths below 300 nm.The photosensitivity of the alkali boro-alumino-silicate bulk glass to UV wavelengths below 300 nm provide for the making of refractive index patterns in the glass. With a radiation source below 300 nm, such a laser, refractive index patterns are formed in the glass. The inventive photosensitive optical refractive index pattern forming bulk glass allows for the formation of patterns in glass and devices which utilize such patterned glass.

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Doremus, Robert H., “Glass Science”, 1994, John Wiley & Sons, Inc., Second Edition, pp. 18-19.

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