Sang-Cheon Kim

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In this paper, we present the design, fabrication, and measurement results of a two-dimensional electromagnetic scanning micromirror actuated by radial magnetic field. The scanner is realized by combining a gimbaled single-crystal-silicon micromirror with a single turn electroplated metal coil, with a concentric permanent magnet assembly composed of two(More)
We present the design, fabrication and measurement results of a comb-driven electrostatic scanning micromirror. Instead of a conventional micromirror having uniform thickness across the entire reflective surface, a diaphragm mirror plate supported by an array of diamond-shaped frame structures is fabricated monolithically. The fabrication process is a(More)
This paper presents the design, fabrication and measurement results of a dual-axis electromagnetic scanning micromirror utilizing radial magnetic field. The scanner is comprised of a gimbaled single-crystal-silicon micromirror with a single turn electroplated metal coil, assembled passively above a concentric permanent magnet assembly. Proposed scanner(More)
The paper presents the design, fabrication and measurement of an electrostatic scanning micromirror having a diaphragm mirror plate supported by an array of diamond shaped frame structures. Instead of supporting the diaphragm mirror of a different material with a stiff rim structure at the circumference, the diaphragm mirror plate and the frame structure(More)
In this talk we will present experimental and theoretical results on the near-field optical spectroscopy of semiconductor quantum wires and dots. Near-field scanning optical techniques make possible spatial resolutions that are well beyond the conventional diffraction limit of light. This feature opens up new possibilities for optical microscopy and(More)
We describe the design, fabrication, and experimental results of a raster scanning laser display system using micromachined electrostatic scanning micromirror. The micromirror is comprised of a diaphragm mirror plate supported by an array of diamond shaped support frame, and movable comb electrodes. A prototype raster scanning laser display system using the(More)
Viterbi decoders employed in digital wireless communications are complex and dissipate large amount of power. In this paper, we investigate power dissipation of Radix-4 Viterbi decoder and SST (Scarce State Transition) Radix-4 Viterbi decoder with changing the constraint length K (namely, K=3, 4). We presents a low power, high-rate Viterbi decoder using SST(More)
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