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We report high time-resolution measurements of photon statistics from pairs of dye molecules coupled by fluorescence resonance energy transfer (FRET). In addition to quantum-optical photon antibunching, we observe photon bunching on a…

凝聚态物理 · 物理学 2009-11-07 Andrew J. Berglund , Andrew C. Doherty , Hideo Mabuchi

By circumventing the optical diffraction limit, super-resolved fluorescence microscopies enable the study of larger cellular structures and molecular assemblies. However, fluorescence nanoscopy currently lacks the spatiotemporal resolution…

The rapid growth of large-scale AI models has intensified energy consumption and data-movement challenges in modern datacenters. Photonic accelerators offer a promising path by executing the linear matrix multiplications of transformer…

光学 · 物理学 2026-03-26 Hyoseok Park , Yeonsang Park

Van der Waals heterostructures (vdWHs) composed of transition-metal dichalcogenides (TMDs) and layered magnetic semiconductors offer great opportunities to manipulate exciton and valley properties of TMDs. Here, we present…

We analyze the resonance energy transfer (RET) rate between quantum emitters (QEs) near a phosphorene/SiC interface under the effects of uniaxial strain. Using a low-energy tight-binding model, we describe the electronic structure of…

介观与纳米尺度物理 · 物理学 2025-05-20 J. Oliveira-Cony , C. Farina , P. P. Abrantes , Tarik P. Cysne

Observational aspects of solar flares relevant to the acceleration process of electrons and protons are reviewed and it is shown that most of these observations can be explained by the interaction with flare plasma of a power law energy…

天体物理学 · 物理学 2007-05-23 Vahe Petrosian

Optimizing energy and charge transport is key in design and implementation of efficient two-dimensional (2D) conductive metal-organic frameworks (MOFs) for practical applications. In this work, for the first time, we investigate the role of…

材料科学 · 物理学 2025-01-31 David Dell'Angelo , Mohammad R. Momeni , Shaina Pearson , Farnaz A. Shakib

For many complex materials systems, low-energy electron microscopy (LEEM) offers detailed insights into morphology and crystallography by naturally combining real-space and reciprocal-space information. Its unique strength, however, is that…

Electroluminescence (EL) imaging is widely used to detect defects in photovoltaic (PV) modules, and machine learning methods have been applied to enable large-scale analysis of EL images. However, existing methods cannot assign multiple…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Ojas Sanghi , Norman Jost , Benjamin G. Pierce , Emma Cooper , Isaiah H. Deane , Jennifer L. Braid

We report on the current simulation studies regarding the reconstruction of Jets and Missing Transverse Energy (MET) with the CMS detector at the CERN proton-proton LHC accelerator. The performance of various jet algorithms is compared,…

高能物理 - 实验 · 物理学 2009-04-03 Didar Dobur

Excitation-energy transfer (EET) and relaxation in an optically excited building block of poly(phenylene ethynylene) (PPE) dendrimers are simulated using wavepackets with the multilayer multiconfiguration time-dependent Hartree (ML-MCTDH)…

化学物理 · 物理学 2025-07-01 Joachim Galiana , Michèle Desouter-Lecomte , Benjamin Lasorne

Nanoscale materials usually can trap light and strongly interact with it leading to many photonic device applications. The light-matter interactions are commonly probed by optical spectroscopy, which, however, have some limitations such as…

介观与纳米尺度物理 · 物理学 2022-08-24 Jinlong Du , Jin-hui Chen , Yuehui Li , Ruochen Shi , Mei Wu , Yun-Feng Xiao , Peng Gao

We model energy transfer between two coupled four-level chromophores with arbitrarily spaced energy levels. Our analysis takes into account the crucial---yet often ignored---process of initial excitation by light that is incident on the…

量子物理 · 物理学 2012-02-17 Chi-Han Chang , Agata M. Branczyk , Gregory D. Scholes , Daniel F. V. James

Proton-coupled electron transfer (PCET) is foundational to catalysis, bioenergetics, and energy conversion, yet capturing and disentangling the coupled motions of electrons, protons, and solvent has remained a major experimental challenge.…

Lorentz transmission electron microscopy is a unique characterization technique that enables the simultaneous imaging of both the microstructure and functional properties of materials at high spatial resolution. The quantitative information…

材料科学 · 物理学 2020-12-09 Tao Zhou , Mathew Cherukara , Charudatta Phatak

In this study, we explore the electron transition mechanism and optical properties of the popular red fluorescent protein mCherry. By examining the charge transfer spectrum and combining it with the mCherry hole-electron distribution, we…

化学物理 · 物理学 2023-04-24 Yuanjin Wang , Gaoshang Li , Jin Dai , Xubiao Peng , Qing Zhao

We study wave propagation through a one-dimensional array of subwavelength resonators with periodically time-modulated material parameters. Focusing on a high-contrast regime, we use a scattering framework based on Fourier expansions and…

光学 · 物理学 2025-07-16 Erik Orvehed Hiltunen , Liora Rueff

Fluorescence resonance energy transfer (FRET) from individual, dye-labeled RNA molecules confined in freely-diffusing attoliter-volume aqueous droplets is carefully compared to FRET from unconfined RNA in solution. The use of…

生物物理 · 物理学 2015-05-21 Sheema Rahmanseresht , Peker Milas , Kieran P. Ramos , Ben D. Gamari , Lori S. Goldner

The nonlinear interaction of x-rays with matter is at the heart of understanding and controlling ultrafast molecular dynamics from an atom-specific viewpoint, providing new scientific and analytical opportunities to explore the structure…

The Controlled Source Electromagnetic (CSEM) method aims to image electrical resistivity at intermediate depths (0-3 km) for geothermal, mineral, and groundwater exploration. It was developed both as a deeper extension of DC resistivity…

地球物理 · 物理学 2026-05-28 F Bretaudeau , S Védrine , C Patzer , B Kim , F Dubois , U Autio , J Kamm , M Darnet
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