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We propose and implement a traveling-wave resonator with an interferometric coupling scheme for efficient high-bandwidth nonlinear silicon photonics. By thermal tuning of the interferometer, selective critical coupling for the pump wavelength is achieved.
Low roughness relief structures have been fabricated using wet etching in <111> silicon wafer for use as masters for microfluidic systems. The etch rate is about 1 to 3 mm/min. A surface roughness of about 2 nm was measured by the atomic force microscope (AFM). No distortion or variation on the channel width is observed in the circular and Y-branched relief structures.
Ultra-high Q microdisk resonators are fabricated and demonstrated on silicon-on-insulator platform. The presence of oxide substrate and a thin Si pedestal layer dramatically reduce the thermal resistance, thereby, increasing input optical power threshold for thermal instability. Critical coupling for a <2~2times106 is experimentally observed.
We observed a synergetic effect between ion energy and sample temperature in the formation of distinct dot pattern on Si(110) by Ar + ion sputtering. The ion flux was 20μA/cm 2 , a value smaller than those used in preceding reports by one or two orders of magnitude. In experiments, the ion energy was from 1 to 5keV, and the temperature from room temperature to 800°C. A phase diagram...
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