Device having a light-absorbing mask and a method for fabricating same
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United States of America Patent
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May 25, 2004
Grant Date -
Feb 12, 2004
app pub date -
Jul 2, 2002
filing date -
Jul 2, 2002
priority date (Note) -
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Abstract
The invention provides a method for fabricating an optical device comprising at least one optical component formed on a transparent substrate. The method comprises determining an area of the substrate that is to be light-absorbing; and fabricating a light-absorbing mask on the determined area prior to fabricating the at least one optical component. The invention also provides an optical device comprising a substrate; and first and second optical components formed on the substrate, wherein the first optical component has two modes, each mode producing a different optical response to light incident thereupon, and wherein the second optical component absorbs light and is formed on the substrate before the first optical component is formed.
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