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We present a numerical method to model electric field sensitive scanning probe microscopy measurements which allows for a tip of arbtrary shape and invokes image charges to exactly account for a sample dielectric overlayer. The method is…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 I. Kuljanishvili , Subhasish Chakraborty , I . J. Maasilta , S. H. Tessmer , M. R. Melloch

This paper presents a novel pulse-reconstruction method well suited to sparsely sampled repetitive data, such as commonly arise from trains of ultrashort laser-pulses. Typically waveforms in such traces are fully instrument-limited by the…

Applied Physics · Physics 2025-10-31 J. Tang , N. Souleles , A. Hwang , L. Coulter , D. Bani , R. Marjoribanks

The field nature of spin in the framework of the field electromagnetic particle concept is considered. A mathematical character of the fine structure constant is discussed. Three topologically different field models for charged particle…

High Energy Physics - Theory · Physics 2008-11-26 Alexander A. Chernitskii

The crystal structure and phonon dynamics of pentacene is computed with the Quasi Harmonic Lattice Dynamics (QHLD) method, based on atom-atom potential. We show that two crystalline phases of pentacene exist, rather similar in thermodynamic…

Charged particle optics, the description of particle trajectories in the vicinity of some optical axis, describe the imaging properties of particle optics devices. Here, we present a complete and compact description of charged particle…

Optics · Physics 2021-06-16 Felix Kern , Jonas Krehl , Arsha Thampi , Axel Lubk

The penetrating nature of electromagnetic probes makes them an ideal candidate to study properties of the Quark-Gluon Plasma (QGP). A selection of recent developments in the theory and phenomenology of electromagnetic probes is discussed,…

High Energy Physics - Phenomenology · Physics 2022-08-23 Gojko Vujanovic

The shape of the photoluminescence line excited at an edge face of InP wafer and recorded from the broadside is used to investigate the intrinsic emission spectrum. The procedure is much less sensitive to the surface properties and the…

Materials Science · Physics 2015-06-16 Oleg Semyonov , Arsen Subashiev , Zhichao Chen , Serge Luryi

Using all available multi-component radio pulse profiles for pulsars with medium to long periods and good polarisation data, we have constructed a two-dimensional image of the mean radio beamshape. This shows a peak near the centre of the…

Astrophysics · Physics 2009-10-31 J. L. Han , R. N. Manchester

Faraday complexity describes whether a spectropolarimetric observation has simple or complex magnetic structure. Quickly determining the Faraday complexity of a spectropolarimetric observation is important for processing large, polarised…

Instrumentation and Methods for Astrophysics · Physics 2021-07-01 M. J. Alger , J. D. Livingston , N. M. McClure-Griffiths , J. L. Nabaglo , O. I. Wong , C. S. Ong

Signal amplitude envelope allows to obtain information of the signal features for different applications. It is widely used to pre-process sound and other signals of physiological origin in human or animal studies. In order to obtain signal…

Sound · Computer Science 2019-08-19 Cecilia Jarne

We consider the conductivity problem for a homogeneous body with an inclusion of a different, but known, conductivity. Our interest concerns the associated shape derivative, i.e., the derivative of the corresponding electrostatic potential…

Analysis of PDEs · Mathematics 2025-06-10 Martin Hanke

Atomic undercoordination, charge injection, mechanical and thermal activation mediate the properties of a material intrinsically by bond relaxation from one equilibrium to another while the phonon spectrometrics probes the ever-unexpected…

Materials Science · Physics 2020-01-08 Chang Q Sun

A modification of the saddle point method is proposed for computation of non-stationary wave processes (pulses) in waveguides. The dispersion diagram of the waveguide is continued analytically. A set of possible saddle points on the…

Computational Physics · Physics 2021-03-12 A. V. Shanin , A. I. Korolkov , K. S. Kniazeva

An analytical circuit model able to predict the input impedance of reconfigurable graphene plasmonic dipoles is presented. A suitable definition of plasmonic characteristic impedance, employing natural currents, is used to for consistent…

Optics · Physics 2015-06-18 Michele Tamagnone , Julien Perruisseau-Carrier

We have developed an inductive method to detect the magnetostrictive resonance signal and applied it to an ultrasonic magnetostrictive transducer sample. Slab shaped ferrite samples are mounted in an RF coil and actuated by pulse modulated…

Other Condensed Matter · Physics 2007-05-23 Jang-ik Park , SangGap Lee , Insuk Yu , Yongho Seo

The defect morphology is an essential aspect of the evolution of crystals' microstructure and its response to stress. Existing methods either only report defect concentration or characterize only some of the defect morphologies. The need…

Computational Physics · Physics 2021-04-21 Utkarsh Bhardwaj , Andrea E. Sand , Manoj Warrier

The main idea and procedure are presented for a new synthetical method on constraining 3-D structure of emission regions of pulsars. With this method the emission regions can be synthetically constrained by fitting multi-wavelength…

Astrophysics · Physics 2007-05-23 H. G. Wang , H. Zhang , X. H. Cui , G. J. Qiao , K. J. Lee , Y. Liu , R. X. Xu

We present a method for a complete characterization of a femtosecond ultraviolet pulse when a fundamental near-infrared beam is also available. Our approach relies on generation of second harmonic from the pre-characterized fundamental,…

Optics · Physics 2009-07-09 Marcin Kacprowicz , Wojciech Wasilewski , Konrad Banaszek

We discuss in depth the validity and limitations of a theoretical scheme to evaluate photo-electron spectra (PES) through collecting the phase oscillations at a given measuring point. Problems appear if the laser pulse is still active when…

Atomic and Molecular Clusters · Physics 2012-06-19 P. M. Dinh , P. Romaniello , P. -G. Reinhard , E. Suraud

We consider the absorption of probe photons by electrons in the presence of an intense, pulsed, background field. Our analysis reveals an interplay between regularisation and gauge invariance which distinguishes absorption from its…

High Energy Physics - Phenomenology · Physics 2019-10-09 Anton Ilderton , Ben King , Alexander John Macleod
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