A5018512016- Diamond and Carbon-based Materials Research
- Mechanical and Optical Resonators
- Force Microscopy Techniques and Applications
- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Quantum optics and atomic interactions
- Atomic and Subatomic Physics Research
- Radiomics and Machine Learning in Medical Imaging
- Thin-Film Transistor Technologies
- Health Systems, Economic Evaluations, Quality of Life
- Speech and dialogue systems
- Neural Networks and Reservoir Computing
- Glioma Diagnosis and Treatment
- Brazilian cultural history and politics
- Economic and Financial Impacts of Cancer
- Arts and Performance Studies
- Ferroptosis and cancer prognosis
- Ion-surface interactions and analysis
- Advanced MEMS and NEMS Technologies
- Advanced Electron Microscopy Techniques and Applications
- Optical Network Technologies
- Advanced Materials Characterization Techniques
- Literature, Culture, and Criticism
- Quantum and electron transport phenomena
- Carbon Nanotubes in Composites
Stanford University
2022-2025
University of Chicago
2020
The University of Adelaide
2016
Silicon carbide has recently been developed as a platform for optically addressable spin defects. In particular, the neutral divacancy in 4H polytype displays an spin-1 ground state and near-infrared optical emission. Here, we present Purcell enhancement of single coupled to photonic crystal cavity. We utilize combination nanolithographic techniques dopant-selective photoelectrochemical etch produce suspended cavities with quality factors exceeding 5000. Subsequent coupling leads factor ∼50,...
The negatively charged tin-vacancy (SnV-) center in diamond is a promising solid-state qubit for applications quantum networking due to its high efficiency, strong zero phonon emission, and reduced sensitivity electrical noise. SnV- has large spin-orbit coupling, which allows long spin lifetimes at elevated temperatures, but unfortunately suppresses the magnetic dipole transitions desired control. Here, by use of naturally strained center, we overcome this limitation achieve high-fidelity...
On-chip photonic quantum circuits with integrated memories have the potential to radically advance hardware for information processing. In particular, negatively charged group-IV color centers in diamond are promising candidates as they combine long storage times excellent optical emission properties and an optically addressable spin state. However, a material, lacks many functionalities needed realize scalable systems. Thin-film lithium niobate (TFLN), contrast, offers number of useful...
The applications of nanomechanical resonators range from biomolecule mass sensing to hybrid quantum interfaces. Their performance is often limited by internal material damping, which can be greatly reduced using crystalline materials. Crystalline silicon carbide appealing due its exquisite mechanical, electrical, and optical properties, but has suffered high damping defects. Here we resolve this developing fabricated bulk monocrystalline 4H-silicon carbide. This allows us achieve as low 2.7...
The negatively charged tin-vacancy center in diamond (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:msup><a:mrow><a:mi>SnV</a:mi></a:mrow><a:mrow><a:mo>−</a:mo></a:mrow></a:msup></a:mrow></a:math>) is an emerging platform for building the next generation of long-distance quantum networks. This due to <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"...
The negatively charged tin-vacancy center in diamond (SnV$^-$) is an emerging platform for building the next generation of long-distance quantum networks. This due to SnV$^-$'s favorable optical and spin properties including bright emission, insensitivity electronic noise, long coherence times at temperatures above 1 Kelvin. Here, we demonstrate measurement a single SnV$^-$ with single-shot readout fidelity $87.4\%$, which can be further improved $98.5\%$ by conditioning on multiple...
Due to their low mass and long coherence times, nanomechanical resonators have many applications, from biomolecule sensing hybrid quantum interfaces. In instances the performance is limited by internal material damping. Crystalline materials promise lower dissipation, however due fabrication challenges, amorphous are more commonly utilized. silicon carbide (SiC) particularly appealing its exquisite mechanical, electrical optical properties, but to-date exhibits higher dissipation than both...
Abstract Radiomics (computerized feature analysis) on treatment-naive MRI scans has demonstrated great value in outcome prediction for Glioblastoma (GBM). However, delta radiomics (analysis of radiomic variation between different events, e.g., before and after treatment) not been explored account challenges with precise spatial correspondences pre- post-operative scans. This work presents a survival model GBM, Similarity Distances-based (SDDR), based the hypothesis that similarity...
Abstract Gliomas have dismal survival. Recently, radiomics has demonstrated success in developing non-invasive image-based biomarkers for survival prediction gliomas. However, clinical applicability of radiomics-based will ultimately require rigorous validation on large, multi-institutional data. This work attempts to evaluate a radiomic-based risk-assessment prognostic score cohort Glioma patients. Our rationale is that optimizing and validating radiomic features capture intensity-based...
On-chip photonic quantum circuits with integrated memories have the potential to radically progress hardware for information processing. In particular, negatively charged group-IV color centers in diamond are promising candidates memories, as they combine long storage times excellent optical emission properties and an optically-addressable spin state. However, a material, lacks many functionalities needed realize scalable systems. Thin-film lithium niobate (TFLN), contrast, offers number of...
Use of strain on a tin-vacancy defect in diamond allows for magnetic-field interactions that turn enable microwave control over its spin, key step using such defects to encode quantum information.
The negatively charged tin-vacancy (SnV-) center in diamond is a promising solid-state qubit for applications quantum networking due to its high efficiency, strong zero phonon emission, and reduced sensitivity electrical noise. SnV- has large spin-orbit coupling, which allows long spin lifetimes at elevated temperatures, but unfortunately suppresses the magnetic dipole transitions desired control. Here, by use of naturally strained center, we overcome this limitation achieve high-fidelity...
We report the high efficiency coupling of diamond waveguides to thin-film lithiumniobate photonics, allowing for optical addressing and characterization individual SiV - color centers.
We demonstrate coherent spin physics of a single tin vacancy center (SnV − ) in diamond pillars including population trapping and Rabi oscillations. This work constitutes progress towards scalable quantum networks using SnV centers.
We present a study on the resonant excitation and electrical Stark tuning of negatively charged tin-vacancy (SnV − ) defect centers in diamond.