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This work aims to advance the room-temperature manipulation of photonic qubits and enhance coherence preservation in and for quantum applications via tailored spatio-spectral localized (SSL) systems. We focus on an innovative all-plasmonic SSL system consisting of a gold bowtie array on a gold substrate. This design produces a high-Q spectral-localized mode through the lattice array, emerging from the collective lattice response of localized surface plasmon resonance (LSPR), particularly the surface lattice resonance (SLR). The SSL system enables tunable modal coupling between the LSPR and SLR, allowing precise alignment with quantum emitters to form quasi-bound states across an energy range of 1.45-1.91 eV. This flexibility allows us to investigate how innovative configurations - such as three-body coupling symmetry and modal-coupling strength - affect coherence protection. These insights pave the way for optimizing SSL systems, setting the stage for significant advancements in nanophotonic qubit manipulation at ambient conditions and the future of photonic quantum systems.
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http://dx.doi.org/10.1515/nanoph-2024-0574 | DOI Listing |
Sci Rep
July 2025
Department of Bioengineering, University of Illinois, Urbana, IL, 61801, USA.
Normal routine electroencephalograms (EEGs) can cause delays in the diagnosis and treatment of epilepsy, especially in drug-resistant patients and those without structural abnormalities. There is a need for alternative quantitative approaches that can inform clinical decisions when traditional visual EEG review is inconclusive. We leverage a large population EEG database (N = 13,652 recordings, 12,134 unique patients) and an independent cohort of patients with focal epilepsy (N = 121) to investigate whether normal EEG segments could support the diagnosis of focal epilepsy.
View Article and Find Full Text PDFIEEE Trans Image Process
January 2025
Near-Infrared (NIR) hyperspectral imaging opens up numerous possibilities for wide applications. Despite Compressive Spectral Imaging (CSI) being a promising technique, which enables the acquisition of three-dimensional (3D) spatio-spectral information from dynamic scenes, applying it to the NIR spectrum remains challenging. The bottleneck lies in the high cost and limited resolution of InGaAs Focal Plane Arrays (FPAs), which further degrade the high-frequency information of the compressed measurements.
View Article and Find Full Text PDFNanophotonics
April 2025
Department of Science, Mathematics and Technology (SMT), Singapore University of Technology and Design (SUTD), 8 Somapah Road, Singapore 487372, Singapore.
This work aims to advance the room-temperature manipulation of photonic qubits and enhance coherence preservation in and for quantum applications via tailored spatio-spectral localized (SSL) systems. We focus on an innovative all-plasmonic SSL system consisting of a gold bowtie array on a gold substrate. This design produces a high-Q spectral-localized mode through the lattice array, emerging from the collective lattice response of localized surface plasmon resonance (LSPR), particularly the surface lattice resonance (SLR).
View Article and Find Full Text PDFACS Photonics
February 2025
Institute of Solid State Physics, Friedrich Schiller University Jena, 07743 Jena, Germany.
Embedding metasurfaces in liquid crystal (LC) cells is a promising technique for realizing tunable optical functionalities. Here, we demonstrate spatially controlled all-optical switching of the optical response of a homogeneous silicon nanocylinder metasurface featuring various Mie-type resonances in the spectral range between 670 and 720 nm integrated in a nematic LC cell. The initial alignment of the LC molecules is controlled by photoalignment layers, where the alignment direction is defined by homogeneous exposure with linearly polarized light at a 450 nm wavelength.
View Article and Find Full Text PDFmedRxiv
February 2025
Department of Bioengineering, University of Illinois, Urbana, IL 61801.
Introduction: Scalp electroencephalography (EEG) is a cornerstone in the diagnosis and treatment of epilepsy, but routine EEG is often interpreted as normal without identification of epileptiform activity during expert visual review. The absence of interictal epileptiform activity on routine scalp EEGs can cause delays in receiving clinical treatment. These delays can be particularly problematic in the diagnosis and treatment of people with drug-resistant epilepsy (DRE) and those without structural abnormalities on MRI (i.
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