Importance

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Abstract

An article comprising an optical cavity includes two mirrors, at least one of which is advantageously movable, that are spaced from and parallel to one another. In some embodiments, both mirrors are formed from unstressed single crystal silicon. The single crystal silicon used in some embodiments is advantageously sourced from single crystal silicon-on-insulator ('SOI') wafers. In a method in accordance with the present invention, a first mirror is patterned in the thin silicon layer of a first SOI wafer. A standoff is disposed on the thin silicon layer near the first mirror. The thin silicon layer of a second SOI wafer is attached to the standoff such that there is a gap between the two, spaced, thin silicon layers. The thin silicon layer of the second SOI wafer is released forming a movable mirror by removing the thick layer of silicon and the buried oxide from that wafer.

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First Claim