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We describe the fabrication and characterization of solid 3-dimensional electrodes in direct contact with microfluidic channels, implemented using a single photolithography step, allowing operation in high-dielectric constant media.…

Soft Condensed Matter · Physics 2013-05-16 T. W. Herling , T. Müller , L. Rajah , J. N. Skepper , M. Vendruscolo , T. P. J. Knowles

The electroluminescence of a polythiophene wire suspended between two metallic electrodes is probed using a scanning tunneling microscope. Under positive sample voltage, the spectral and voltage dependencies of the emitted light are…

Mesoscale and Nanoscale Physics · Physics 2014-01-13 Gaël Reecht , Fabrice Scheurer , Virginie Speisser , Yannick J. Dappe , Fabrice Mathevet , Guillaume Schull

A micromagnetic study of epitaxial micron-sized iron dots is reported through the analysis of Fresnel contrast in Lorentz Microscopy. Their use is reviewed and developed through analysis of various magnetic structures in such dots. Simple…

This paper presents an attractive method towards sensing and quantifying the concentration of dielectric particles suspended in a highly conductive medium. Fast electrical impedance spectroscopy (EIS) measurements were performed, based on…

Signal Processing · Electrical Eng. & Systems 2019-03-26 Roberto G. Ramírez-Chavarría , Celia Sánchez-Pérez

The electric forces acting on an atomic force microscope tip in solution have been measured using a microelectrochemical cell formed by two periodically biased electrodes. The forces were measured as a function of lift height and bias…

Materials Science · Physics 2008-03-13 B. J. Rodriguez , S. Jesse , K. Seal , A. P. Baddorf , S. V. Kalinin

Electric Scanning Probe Microscopies are used to characterize the surface behavior of ferroelectric materials. The effects of local charge density on the chemistry and physics of ferroelectric surfaces are investigated. The kinetics and…

Materials Science · Physics 2007-05-23 Sergei V. Kalinin , Dawn A. Bonnell

A method of scanning mid-IR-laser microscopy has recently been proposed for the investigation of large-scale electrically and recombination-active defects in semiconductors and non-destructive inspection of semiconductor materials and…

Materials Science · Physics 2011-05-17 O. V. Astafiev , V. P. Kalinushkin , V. A. Yuryev

We propose a new technique for the detection of single atoms in ultracold quantum gases. The technique is based on scanning electron microscopy and employs the electron impact ionization of trapped atoms with a focussed electron probe.…

Statistical Mechanics · Physics 2007-05-23 T. Gericke , C. Utfeld , N. Hommerstad , H. Ott

Different imaging modalities are used to extract the diverse information carried in an optical field. Two prominent modalities include bright field and phase contrast microscopy that can visualize the amplitude and phase features of a…

In this paper we describe an ultrafast scanning electron microscope setup developed for the research of inelastic scattering of electrons at optical near-fields of periodic dielectric nanostructures. Electron emission from the Schottky…

Applied Physics · Physics 2018-08-01 M. Kozák , J. McNeur , N. Schönenberger , J. Illmer , A. Li , A. Tafel , P. Yousefi , T. Eckstein , P. Hommelhoff

We demonstrate a novel detection method for the cyclotron resonance frequency of an electron plasma in a Penning-Malmberg trap. With this technique, the electron plasma is used as an in situ diagnostic tool for measurement of the static…

A major goal of many spectroscopic techniques is to provide comprehensive information on the local chemical environment. Electron transfer mediated decay (ETMD) is a sensitive probe of the environment since it is actively involved in this…

Electrochemistry exploits local current heterogeneities at various scales ranging from the micrometer to the nanometer. The last decade has witnessed unprecedented progress in the development of a wide range of electroanalytical techniques…

Optics · Physics 2022-11-16 Frederic Kanoufi

We present ion backflow measurements in a Micromegas (MICRO-MEsh GASeous detector) TPC device developed for the next high energy electron-positron linear collider under study and a simple explanation for this backflow. A Micromegas…

Instrumentation and Detectors · Physics 2007-05-23 P. Colas , I. Giomataris , V. Lepeltier

When a liquid mixture is subjected to external electric fields, ionic screening leads to field gradients. We point out that if the mixture is initially in the homogeneous phase, this screening can bring about a robust phase-separation…

Soft Condensed Matter · Physics 2009-11-11 Yoav Tsori , Ludwik Leibler

Photoelectron spectroscopy is a powerful method that provides insight into the quantum mechanical properties of a wide range of systems. The ionized electron wavefunction carries information on the structure of the bound orbital, the ionic…

We present the design and implementation of a scanning probe microscope, which combines electrically detected magnetic resonance (EDMR) and (photo-)conductive atomic force microscopy ((p)cAFM). The integration of a 3-loop 2-gap X-band…

We study a hybrid quantum system composed of an ion and an electric dipole. We show how a trapped ion can be used to measure the small electric field generated by a classical dipole. We discuss the application of this scheme to measure the…

Quantum Gases · Physics 2015-01-13 Jordi Mur-Petit , Juan José García-Ripoll

We demonstrate a simple and robust methodology for measuring and analyzing the polarization impedance appearing at interface between electrodes and ionic solutions, in the frequency range from 1 to $10^6$ Hz. The method assumes no…

Soft Condensed Matter · Physics 2009-09-15 Camelia Prodan , Corina Bot