Search Results - "Bettiol, Andrew A."
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Tailoring the slow light behavior in terahertz metasurfaces
Published in Applied physics letters (04-05-2015)“…We experimentally study the effect of near field coupling on the transmission of light in terahertz metasurfaces. Our results show that tailoring the coupling…”
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Frequency‐Agile Temporal Terahertz Metamaterials
Published in Advanced optical materials (01-06-2020)“…Spatiotemporal manipulation of electromagnetic waves has recently enabled a plethora of exotic optical functionalities, such as non‐reciprocity, dynamic…”
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An antiferromagnetic spin phase change memory
Published in Nature communications (11-06-2024)“…The electrical outputs of single-layer antiferromagnetic memory devices relying on the anisotropic magnetoresistance effect are typically rather small at room…”
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Quantifying nanodiamonds biodistribution in whole cells with correlative iono-nanoscopy
Published in Nature communications (02-08-2021)“…Correlative imaging and quantification of intracellular nanoparticles with the underlying ultrastructure is crucial for understanding cell-nanoparticle…”
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Whole-Cell Imaging at Nanometer Resolutions Using Fast and Slow Focused Helium Ions
Published in Biophysical journal (05-10-2011)“…Observations of the interior structure of cells and subcellular organelles are important steps in unraveling organelle functions. Microscopy using helium ions…”
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Proton Beam Writing of Three-Dimensional Nanostructures in Hydrogen Silsesquioxane
Published in Nano letters (01-03-2006)“…Proton beam writing (p-beam writing) is a promising new direct-write lithographic technique for three-dimensional nanofabrication. In p-beam writing a…”
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Nanoscale smoothing of plasmonic films and structures using gas cluster ion beam irradiation
Published in Applied physics. A, Materials science & processing (01-11-2014)“…We present a novel method of using gas cluster ion beam irradiation (GCIB) to flatten and widen grains in silver films and structures, while simultaneously,…”
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Real-time single-proton counting with transmissive perovskite nanocrystal scintillators
Published in Nature materials (01-06-2024)“…High-sensitivity radiation detectors for energetic particles are essential for advanced applications in particle physics, astronomy and cancer therapy. Current…”
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Subwavelength Plasmonic Color Tuning of Quantum Dot Emission
Published in ACS photonics (16-01-2019)“…The need to develop new patterning techniques for high-resolution microdisplays becomes paramount with the rapidly emerging popularity of augmented/virtual…”
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DC Magnetic Field Sensitivity Optimization of Spin Defects in Hexagonal Boron Nitride
Published in Nano letters (12-07-2023)“…Spin defects existing in van der Waals materials attract wide attention thanks to their natural advantages for in situ quantum sensing, especially the…”
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Fabrication of optical microresonators using proton beam writing
Published in Microelectronic engineering (01-02-2013)“…Proton beam writing is a high resolution direct write lithographic technique capable of producing three dimensional, high aspect ratio structures with smooth…”
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Influence of thermal annealing on the properties of proton implanted diamond waveguides
Published in Carbon (New York) (01-01-2021)“…We have studied guiding performance of 2-MeV proton implanted diamond waveguides as a function of implantation fluence and annealing temperature. Raman spectra…”
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Gate-Tunable Bound Exciton Manifolds in Monolayer MoSe2
Published in Nano letters (24-05-2023)“…Two-dimensional (2D) semiconductors with point defects are predicted to host a variety of bound exciton complexes analogous to trions and biexcitons due to…”
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14
Ionic-resolution protoacoustic microscopy: A feasibility study
Published in Applied physics letters (29-01-2024)“…Visualizing micro- and nano-scale biological entities requires high-resolution imaging and is conventionally achieved via optical microscopic techniques…”
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15
Gate-Tunable Bound Exciton Manifolds in Monolayer MoSe 2
Published in Nano letters (24-05-2023)“…Two-dimensional (2D) semiconductors with point defects are predicted to host a variety of bound exciton complexes analogous to trions and biexcitons due to…”
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Robust Nuclear Spin Polarization via Ground-State Level Anticrossing of Boron Vacancy Defects in Hexagonal Boron Nitride
Published in Physical review letters (28-06-2024)“…Nuclear spin polarization plays a crucial role in quantum information processing and quantum sensing. In this work, we demonstrate a robust and efficient…”
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High Sensitivity Spin Defects in hBN Created by High‐Energy He Beam Irradiation
Published in Advanced optical materials (01-01-2023)“…Recently the negatively charged boron vacancies (VB−$V_{\rm{B}}^{\bm{ - }}$) in hexagonal boron nitride (hBN) have been shown as spin defects that have great…”
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Direct formation of nitrogen-vacancy centers in nitrogen doped diamond along the trajectories of swift heavy ions
Published in Applied physics letters (22-02-2021)“…We report depth-resolved photoluminescence measurements of nitrogen-vacancy (NV−) centers formed along the tracks of swift heavy ions (SHIs) in type Ib…”
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Subwavelength imaging through ion-beam-induced upconversion
Published in Nature communications (12-11-2015)“…The combination of an optical microscope and a luminescent probe plays a pivotal role in biological imaging because it allows for probing subcellular…”
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Comparison of translation algorithms in determining maximum allowable CTV shifts for Real-Time Gated Proton Therapy (RGPT) robustness evaluation in prostate cancers
Published in Journal of applied clinical medical physics (03-10-2024)“…Real-Time Gated Proton Therapy (RGPT) is an active motion management technique that utilizes treatment gating and tumor tracking via fiducial markers. When…”
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