Search Results - "Claussen, S. A."
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Selective area growth of germanium and germanium/silicon-germanium quantum wells in silicon waveguides for on-chip optical interconnect applications
Published in Optical materials express (01-10-2012)“…We propose a robust fabrication process for growing Ge and Ge-based heterostructures in growth windows with Si sidewalls which can be applied to growth in…”
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Journal Article -
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Ge/SiGe Quantum Well Waveguide Modulator Monolithically Integrated With SOI Waveguides
Published in IEEE photonics technology letters (15-03-2012)“…We report a Ge/SiGe quantum well waveguide electroabsorption modulator that is monolithically integrated with silicon-on-insulator waveguides. The active…”
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Journal Article -
3
Selective-area growth of Ge and Ge/SiGe quantum wells in 3 μm silicon-on-insulator waveguides
Published in 2012 Conference on Lasers and Electro-Optics (CLEO) (01-05-2012)“…We demonstrate a robust process for growing high-quality bulk Ge and Ge/SiGe quantum wells in selected areas of 3 μm thick silicon-on-insulator waveguides,…”
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Conference Proceeding -
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Light emission in Ge quantum wells
Published in 2012 Conference on Lasers and Electro-Optics (CLEO) (01-05-2012)“…We present the Ge/SiGe quantum well structure as a strong candidate for CMOS compatible light source. Photoluminescence and electroluminescence show enhanced…”
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Conference Proceeding -
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Spot size effects in asymmetric fabry-perot electroabsorption modulators
Published in IEEE Photonics Society Summer Topicals 2010 (01-07-2010)“…Simulations of an asymmetric Fabry-Perot modulator reveal degradation of the contrast ratio as the incident spot size is decreased. The minimum practical spot…”
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Conference Proceeding -
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Simple electroabsorption model for silicongermanium/germanium quantum well devices
Published in IEEE Photonics Society Summer Topicals 2010 (01-07-2010)“…We present a simple model for the electroabsorption spectrum of germanium-based quantum wells, which can be used to optimize material design for modulators…”
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Conference Proceeding -
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Ge quantum well resonator modulators
Published in 8th IEEE International Conference on Group IV Photonics (01-09-2011)“…The strong electroabsorption modulation possible in Ge/SiGe quantum wells promises efficient, CMOS-compatible integrated optical modulators. We demonstrate…”
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Conference Proceeding -
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Ultrafast absorption recovery in germanium/silicon-germanium quantum wells
Published in 2010 23rd Annual Meeting of the IEEE Photonics Society (01-11-2010)“…We show ultrafast absorption changes in germanium-based quantum wells, attributing these to exciton bleaching, ultrafast intervalley scattering, carrier escape…”
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Conference Proceeding -
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Simple electroabsorption calculator for germanium quantum well devices
Published in 8th IEEE International Conference on Group IV Photonics (01-09-2011)“…We present a simple quantum well electroabsorption calculator (SQWEAC) for the germanium material system to facilitate optoelectronic modulator design. We show…”
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Conference Proceeding