Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Si photonics"”.
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Integrated optical phased arrays for lidar applications
It is no wonder that research in Si photonics (optical components embedded on a silicon platform) has bloomed so rapidly the last few years. Combining low loss, strong refractive index contrast (and, thus, light confinement), with electro-optical and thermo-optical effects, allows for the …
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High-Sn-content GeSn Alloy towards Room-temperature Mid Infrared Laser
<p>Si photonics is a rapidly expanding technology that integrates photonic circuits onto a Si substrate. The integration of Si electronics and photonics has been a successful technology for a wide range of applications. Group-IV alloy GeSn has drawn great attentions as a complementary …
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Effect Of Germanium Doping On Erbium Sensitization In The Erbium Doped Silicon Rich Silica Material System
The continued size reduction in electronic integrated circuits has lead to a demand for on-chip high-bandwidth and low loss communication channels. Optical interconnects are considered an essential addition to the silicon electronics platform. A major challenge in the field of integrated Si …
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Ion Beam Synthesis and Irradiation for Si-Based Photonic Materials and Nuclear Waste Management
This thesis describes investigations of material synthesis and interactions of radiation with materials using ion beam techniques, with applications in Si photonics and in nuclear waste management. Advances in electronics and telecommunications drive the need for Si-based optical materials (group …
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Graphene Modulators for Silicon Photonic Optical Links
… networks cannot support Tb/s data transmission without consuming an unsustainable amount of power. Optical transceivers send and receive information encoded in light, relying on electro-optic modulators to convert the electrical data signal into the optical domain, and photodetectors to …
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Tensile-strained Germanium via III-V Heterostructures for Emerging Electronic and Photonic Applications
The relentless scaling down of feature dimensions in silicon (Si)-based complementary metal-oxide-semiconductor (CMOS) architectures has been the primary catalyst for the enhancement of technological functionalities within portable electronic systems and computational infrastructures. Concurrently, …
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Ge-on-Si laser for silicon photonics
Ge-on-Si devices are explored for photonic integration. Importance of Ge in photonics has grown and through techniques developed in our group we demonstrated low density of dislocations (<1x109cm-2) and point defects Ge growth for photonic devices. The focus of this document will be exclusively on …
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Integrated silicon photonic two-dimensional grating couplers
Silicon (Si) photonics has proven its importance in the recent years for enabling the integration of photonic components, using available complementary metal oxide semiconductor (CMOS) fabrication flows. The simultaneous realization of electronics and photonics in the same manufacturing platform …
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Materials science and design for germanium monolithic light source on silicon
… optically active material with the advantages of Si-CMOS compatibility and monolithic integration. It has great potential to be used as the light emitter for Si photonics. Tensile strain and n-type doping are two key properties in Ge to achieve optical gain. This thesis mainly focuses on: (1) …
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Theory and simulation of quantum nanostructures for integrated photonics
… lasers, electro-absorption modulators (EAMs), single-photon sources, and photodetectors. Theoretical analysis of these devices is required to enable performance improvements and support development for novel applications. In this thesis, we employ the semi-empirical continuum-based k · p method …
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Si-based Germanium-Tin (GeSn) Emitters for Short-Wave Infrared Optoelectronics
… integrated electronics have reached a physical limit, and their efficiency has been influenced by the generated heat in the high-density electronic packages. Integrated photonic circuits based on the highly developed Si complementary-metal-oxide-semiconductor (CMOS) infrastructure was …