Gasb-to-Si Direct Wafer Bonding and Thermal Budget Considerations for Photonic Applications
Abstract not provided.
Publications
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Jump to search filtersNanophotonic Metastructures for Green-Yellow Emission from Non-Planar InGaN Quantum Wells
2024 Conference on Lasers and Electro-Optics, CLEO 2024
We demonstrate high-efficiency emission at wavelengths longer than 540 nm from InGaN quantum wells regrown on periodic arrays of GaN nanostructures and explore their incorporation into nanophotonic resonators for semiconductor laser development.
Inverse Design and Fabrication of a Vanadium Dioxide Optical Device using a Dual Neural Network Topology Optimization Approach
Abstract not provided.
High Performance 2.5D interposer for RF Applications
Abstract not provided.
Adjusting VCSEL wavelength and index by etching and regrowth
Abstract not provided.
Substrate-Independent Technique of III-V Heterogeneous Integration of Focal Plane Arrays and Lasers
CLEO: Science and Innovations, CLEO:S and I 2023
We report on a two-step technique for post-bond III-V substrate removal involving precision mechanical milling and selective chemical etching. We show results on GaAs, GaSb, InP, and InAs substrates and from mm-scale chips to wafers.
Substrate-Independent Technique of III-V Heterogeneous Integration of Focal Plane Arrays and Lasers
2023 Conference on Lasers and Electro Optics CLEO 2023
We report on a two-step technique for post-bond III-V substrate removal involving precision mechanical milling and selective chemical etching. We show results on GaAs, GaSb, InP, and InAs substrates and from mm-scale chips to wafers.
Additively Manufactured Micro-Optics for Dense Multi-Chip Photonic Integration
Abstract not provided.
Reconfigurable Unpatterned Metasurfaces via Acoustoelectric Gating of Graphene
Abstract not provided.
Optimization of an Optical Shutter using Machine Learning
Abstract not provided.
Optimization of an Optical Shutter using Machine Learning
Abstract not provided.
Optimization of an Optical Shutter using Machine Learning
Abstract not provided.
Optomechanical Spring Effect Readout in Resonant Micro-Optical Sagnac Gyroscopes: Design and Scaling Analysis
Abstract not provided.
Full-resolution two-color infrared detector
2021 IEEE Research and Applications of Photonics in Defense Conference, RAPID 2021
We discuss thinned InAsSb resonant infrared detectors that are designed to enable high quantum efficiency by using interleaved nanoantennas to read out two wavelengths from each pixel simultaneously.
Nanocomposite-seeded epitaxial growth of single-domain lithium niobate thin films as a new potential material forX-Band RF applications
Abstract not provided.
Transverse mode control of VCSELs using 3D-printed micro-optics
Abstract not provided.
Analyzing Custom Proof Masses and Quantum Limits of a Manufacturable Cavity Optical Levitation Solution
This report details results of a one-year LDRD to understand the dynamics, figures of merit, and fabrication possibilities for levitating a micro-scale, disk-shaped dielectric in an optical field. Important metrics are the stability, positional uncertainty, and required optical power to maintain levitation. Much of the results are contained in a publication written by our academic alliance collaborators. Initial structures were grown at Sandia labs and a test fabrication flow was executed. Owing to our strength in VCSEL lasers, we were particularly interested in calculations and fabrication flows that could be compatible with a VCSEL light source.
Compact, Pull-in-Free Electrostatic MEMS Actuated Tunable Ring Resonator for Optical Multiplexing
Optics Infobase Conference Papers
We present an optical wavelength division multiplexer enabled by a ring resonator tuned by MEMS electrostatic actuation. Analytical analysis, simulation and fabrication are discussed leading to results showing controlled tuning greater than one FSR.
Compact, Pull-in-Free Electrostatic MEMS Actuated Tunable Ring Resonator for Optical Multiplexing
Optics InfoBase Conference Papers
We present an optical wavelength division multiplexer enabled by a ring resonator tuned by MEMS electrostatic actuation. Analytical analysis, simulation and fabrication are discussed leading to results showing controlled tuning greater than one FSR.
Direct-write orientation of charge-transfer liquid crystals enables polarization-based coding and encryption
Scientific Reports
Optical polarizers encompass a class of anisotropic materials that pass-through discrete orientations of light and are found in wide-ranging technologies, from windows and glasses to cameras, digital displays and photonic devices. The wire-grids, ordered surfaces, and aligned nanomaterials used to make polarized films cannot be easily reconfigured once aligned, limiting their use to stationary cross-polarizers in, for example, liquid crystal displays. Here we describe a supramolecular material set and patterning approach where the polarization angle in stand-alone films can be precisely defined at the single pixel level and reconfigured following initial alignment. This capability enables new routes for non-binary information storage, retrieval, and intrinsic encryption, and it suggests future technologies such as photonic chips that can be reconfigured using non-contact patterning.
Gallium Arsenide X-ray Photodiodes for Ultrafast Physics Applications
Abstract not provided.
Optically-Triggered Optical Limiters for Short-Wavelength Infrared Sensor Protection
Abstract not provided.
Enhancing Semiconductor Laser Performance Using 3D-Printed Microlenses
Abstract not provided.
High Density Microbump Development for Multi-Project Wafer (MPW) Die
Abstract not provided.
Heterogeneous Integration of Silicon Electronics and Compound Semiconductor Optoelectronics for Miniature RF Photonic Transceivers
Abstract not provided.
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