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 20 of 61 for “"Integrated photonics"”.
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Analog integrated photonics
Silicon photonics promises to revolutionize the field of optics by allowing for cheap, compact, low-power and low-noise optical systems on chip. In the past decade and a half, the basic functionality and acceptable performance of many individual integrated photonic components have been …
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Photodetectors for graphene-based integrated photonics
The development of integrated optical circuits has enabled a diverse portfolio of chipscale photonic applications—ranging from data communication over sensing to imaging—that is set to grow further as new device concepts in, for example, quantum information processing and optical neural networks …
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Efficient Light Coupling Techniques for Integrated Photonics
… The current commercial practice of CMOS-photonics integration is limited to separate fabrication of the respective devices and connecting them by chip-to-chip interconnect systems. In this thesis, I propose and demonstrate a broadside beam routing mechanism in the telecom wavelength using …
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Optimized grating coupler designs for integrated photonics
… of expertise is enclosed in the expression: “Photonics Packaging” with the common aim of interfacing a Photonic Integrated Circuit (PIC), either optically, electrically, thermally, and mechanically, with the surrounding environment. Thus, a multi-physics approach is essential to tackle the …
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Theory and simulation of quantum nanostructures for integrated photonics
… quantum dots (QDs) are employed in a variety of integrated photonic devices, including 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 …
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Modeling of devices for gallium-nitride-based integrated photonics
… GaN-on-Si technology, such devices can be integrated with high-speed, high-power GaN transistor driving circuitries or even be transferred to other material platforms with a minimal amount of cost. These unique properties not only make GaN a promising material for optical signal processing …
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Hybrid mode coupling for enhanced sensing and integrated photonics
… mode-coupling approach to enhance sensing and integrated photonic applications. The coupling of photonic elements is not new; the current demand is to further explore coupling strategies within photonic systems and complementary systems to meet or exceed design metrics and functionality. These …
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Visible and ultraviolet integrated photonics for addressing atomic systems
In the wake of many technological successes in integrated photonics based on silicon, attention has been given to applications in the visible light regime. This thesis is concerned with furthering the development of integrated photonics for controlling atomic systems, in particular individual …
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Integrated photonics for imaging: novel sources, architectures and applications
Integrated photonics is considered a promising technology to tackle many current technological bottlenecks including data communication, computation, sensing and healthcare. Consequently, significant efforts have been dedicated to the study of integrated optical devices and systems for these …
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Iron Garnet Thin Films for Integrated Photonics and Spintronics
… for nonreciprocal devices essential in photonic integrated circuits. 2) Low Gilbert damping and perpendicular anisotropy (PMA) that promote fast DW dynamics making them exciting candidates for next generation spintronic memory. We first study polycrystalline in-plane magnetized iron garnets for …
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Incorporation of Nonconventional Crystalline Materials onto the Integrated Photonics Platform
… those crystals into existing multi-scale integrated system platforms, new technologies must be developed that can supply high-quality, single-crystal, thin-films in the desired thin-film architecture. Unfortunately, production of thin-films of single-crystals is not always possible via …
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Germanium on Silicon Integrated Photonics for the Mid-Wave Infrared
… the development of a Germanium-on-Silicon (GOS) integrated photonics platform for the mid-wave infrared (MWIR) wavelength range. Integrated photonics applies nanofabrication approaches with optical materials in order to miniaturize and improve the robustness of optical systems. Most integrated …
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Developing transition metal dichalcogenide alloys for applications to integrated photonics
… (TMDs) as phase-change materials for photonics integrated circuits (PIC). We measure the near-infrared (NIR) optical properties of bulk crystal telluride TMDs and sulfide TMDs. We find that telluride TMDs have large optical density and large optical contrast, but the loss is too high. …
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Integrated-Photonics Devices and Architectures for Advanced Cooling of Trapped Ions
Integrated-photonics-based architectures for trapped-ion systems offer a potential avenue for improved fidelity and addressability of ion arrays. Motional state cooling, a key optical function in trapped-ion systems, however, has been limited to Doppler and resolved-sideband cooling in …
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Visible-Light Integrated Photonics for 3D-Printing and Trapped-Ion Systems
Silicon photonics has enabled next-generation optical technologies that have facilitated revolutionary advances for numerous fields spanning science and engineering, including computing, communications, sensing, and quantum engineering. In recent years, the advent of visible-light integrated …
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Spatial Emission and Polarization Control in Integrated Photonics for Optical-Trapping and Trapped-Ion Systems
Recent advances in silicon photonics have yielded impressive results in fields including biophotonic optical tweezers and trapped-ion quantum systems. However, the majority of these demonstrations, while offering advantages in size, cost, and dense integration, lag behind their bulk-optic …
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Fully Integrated CMOS-compatible mode-locked lasers
The field of integrated photonics has already revolutionized optical communications and is making rapid advances in signal processing, light detection and ranging, optical sensing, bio-medical diagnostics and imaging, and military-related applications. Large and complex radio-frequency and optical …
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Ultrasensitive CMOS-compatible lab-on-a-chip integrated photonic sensors with wideband operation
… of life. The rapid development of the field of integrated photonics enables the opportunity of realizing integrated and compact sensing systems with fast analysis, low cost, and potential for mass production. The focus of this dissertation is to develop key building blocks for the lab-on-a-chip …
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Highly absorptive thin films for integrated photonic devices
… to develop these devices into a new field of integrated photonics, methods for analysis, patterning, and deposition of the active layer are necessary. This thesis develops these methods and applies them to thin films of J-aggregates grown in a layer-by-layer (LBL) process, which have been …
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Integrated Visible-Light Platforms, Devices, and Systems for Augmented Reality and Beyond
… to address these limitations, VIPER (Visible Integrated Photonics Enhanced Reality), a novel integrated-photonics-based holographic display, is developed and demonstrated. The VIPER display consists of a single transparent chip that sits directly in front of the user's eye and projects 3D …
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