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A Compact Fourier Transform Spectrometer on a Silicon Optical Bench With an Electrothermal MEMS Mirror
Abstract—This paper reports a compact Fourier transform spectrometer system with a large-stroke electrothermal microelectromechanical systems (MEMS) mirror and other optical components all integrated on a micromachined silicon optical bench with the footprint of 2 cm × 2 cm. The linear optical path difference (OPD) scan range generated by the MEMS mirror reaches up to 450 μm, and the tilting of the mirror plate is reduced down to
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