Abstract
A 3 × 3 micromirror array has been designed and successfully fabricated by multilayer silicon surface micromaching technology. It is composed of a bottom electrode, a supporting part, and a mirror plate and can modulate both phase and amplitude of incident light. The maximum deflection length along the vertical direction of the mirror plate is 2 μm, and the rotation angles about the Y and X axes are ×2.3° and ±1.45°, respectively; one can obtain an even larger deflection by simply increasing the thickness of the sacrificial layers.
© 2005 Optical Society of America
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