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The reflectivity of low energy electrons from graphene on copper substrates is studied both experimentally and theoretically. Well-known oscillations in the reflectivity of electrons with energies 0 - 8 eV above the vacuum level are…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 N. Srivastava , Qin Gao , M. Widom , R. M. Feenstra , Shu Nie , K. F. McCarty , I. V. Vlassiouk

Neutron grating interferometry provides information on phase and small-angle scatter in addition to attenuation. Previously, phase grating moir\'e interferometers (PGMI) with two- or three-phase gratings have been developed. These…

Instrumentation and Detectors · Physics 2023-04-19 I. J. Hidrovo , J. Dey , H. Meyer , D. S. Hussey , N. N. Klimov , L. G. Butler , K. Ham , W. Newhauser

The U. C. Berkeley Infrared Spatial Interferometer has been outfitted with a filterbank system to allow interferometric observations of mid-infrared spectral lines with very high spectral resolution (R ~ 10^5). This paper describes the…

Astrophysics · Physics 2009-10-31 J. D. Monnier , W. Fitelson , W. C. Danchi , C. H. Townes

A novel approach which uses Fibre Bragg Grating (FBG) sensors has been utilised to assess and monitor the flatness of Gaseous Electron Multipliers (GEM) foils. The setup layout and preliminary results are presented.

Instrumentation and Detectors · Physics 2016-06-22 D. Abbaneo , M. Abbas , M. Abbrescia , A. A. Abdelalim , M. Abi Akl , O. Aboamer , D. Acosta , A. Ahmad , W. Ahmed , W. Ahmed , A. Aleksandrov , R. Aly , P. Altieri , C. Asawatangtrakuldee , P. Aspell , Y. Assran , I. Awan , S. Bally , Y. Ban , S. Banerjee , V. Barashko , P. Barria , G. Bencze , N. Beni , L. Benussi , V. Bhopatkar , S. Bianco , J. Bos , O. Bouhali , A. Braghieri , S. Braibant , S. Buontempo , C. Calabria , M. Caponero , C. Caputo , F. Cassese , A. Castaneda , S. Cauwenbergh , F. R. Cavallo , A. Celik , M. Choi , S. Choi , J. Christiansen , A. Cimmino , S. Colafranceschi , A. Colaleo , A. Conde Garcia , S. Czellar , M. M. Dabrowski , G. De Lentdecker , R. De Oliveira , G. de Robertis , S. Dildick , B. Dorney , W. Elmetenawee , G. Endroczi , F. Errico , A. Fenyvesi , S. Ferry , I. Furic , P. Giacomelli , V. Golovtsov , L. Guiducci , F. Guilloux , A. Gutierrez , R. M. Hadjiiska , A. Hassan , J. Hauser , K. Hoepfner , M. Hohlmann , H. Hoorani , P. Iaydjiev , Y. G. Jeng , T. Kamon , P. Karchin , A. Korytov , S. Krutelyov , A. Kumar , H. Kim , J. Lee , T. Lenzi , L. Litov , F. Loddo , A. Madorsky , T. Maerschalk , M. Maggi , A. Magnani , P. K. Mal , K. Mandal , A. Marchioro , A. Marinov , R. Masod , N. Majumdar , J. A. Merlin , G. Mitselmakher , A. K. Mohanty , S. Muhammad , A. Mohapatra , J. Molnar , S. Mukhopadhyay , M. Naimuddin , S. Nuzzo , E. Oliveri , L. M. Pant , P. Paolucci , I. Park , G. Passeggio , L. Passamonti , B. Pavlov , B. Philipps , D. Piccolo , D. Pierluigi , H. Postema , A. Puig Baranac , A. Radi , R. Radogna , G. Raffone , A. Ranieri , G. Rashevski , C. Riccardi , M. Rodozov , A. Rodrigues , L. Ropelewski , S. RoyChowdhury , A. Russo , G. Ryu , M. S. Ryu , A. Safonov , S. Salva , G. Saviano , A. Sharma , A. Sharma , R. Sharma , A. H. Shah , M. Shopova , J. Sturdy , G. Sultanov , S. K. Swain , Z. Szillasi , A. Tatarinov , T. Tuuva , M. Tytgat , I. Vai , M. Van Stenis , R. Venditti , E. Verhagen , P. Verwilligen , P. Vitulo , S. Volkov , A. Vorobyev , D. Wang , M. Wang , U. Yang , Y. Yang , R. Yonamine , N. Zaganidis , F. Zenoni , A. Zhang

Deep frequency modulation interferometry combines optical minimalism with multi-fringe readout. Precision however is key for applications such as optical gradiometers for satellite geodesy or as dimensional sensor for ground-based gravity…

Instrumentation and Methods for Astrophysics · Physics 2019-09-18 Katharina-Sophie Isleif , Gerhard Heinzel , Moritz Mehmet , Oliver Gerberding

This tutorial gives a general introduction to optical and infrared interferometry, specifically addressing two questions: `Can I use VLTI to observe my favourite object?' and `What will it tell me?' The observables measured by an…

Astrophysics · Physics 2007-05-23 Timothy R. Bedding

Current limits on violation of local Lorentz invariance in the photon sector are derived mainly from experiments that search for a spatial anisotropy in the speed of light. The presently operating gravitational wave detectors are Michelson…

General Relativity and Quantum Cosmology · Physics 2016-08-11 Adrian C. Melissinos

We performed the conductance and the shot noise measurements in an electronic Mach-Zehnder interferometer. The visibility of the interference is investigated as a function of the electron temperature that is derived from the thermal noise…

Characteristics of triple GEM detector have been studied systematically. The variation of the effective gain and energy resolution of GEM with variation of the applied voltage has been measured with Fe55 X-ray source for different gas…

Instrumentation and Detectors · Physics 2015-06-22 S. Biswas , A. Abuhoza , U. Frankenfeld , J. Hehner , C. J. Schmidt , H. R. Schmidt , M. Traeger , S. Colafranceschi , A. Marinov , A. Sharma

Feasibility studies of an observation of the exclusive diffractive bremsstrahlung at RHIC at $\sqrt{s} = 200$~GeV and at $\sqrt{s} = 500$~GeV are reported. A simplified approach to the photon and the scattered proton energy reconstruction…

High Energy Physics - Experiment · Physics 2015-10-26 J. Chwastowski , A. Cyz , L. Fulek , R. Kycia , B. Pawlik , R. Sikora , J. Turnau

All-reflective interferometry based on nano-structured diffraction gratings offers new possibilities for gravitational wave detection. We investigate an all-reflective Fabry-Perot interferometer concept in 2nd order Littrow mount. The…

We investigate the sensitivity of three-photon EIT in Rydberg atoms to radio frequency detection and compare it against conventional two-photon systems. Specifically, we model the 4-level and 5-level atomic system and compare how the…

A technique for measuring high-energy electrons using Si detectors of various thicknesses that are much smaller than the range of the examined electrons is presented. The advantages of the method are discussed on the basis of…

Instrumentation and Detectors · Physics 2024-02-27 Gokul Das H , R. Dubey , K. Czerski , M. Kaczmarski , A. Kowalska , N. Targosz-Sleczkaa , M. Valat

We describe a quasi-optical multifrequency ESR spectrometer operating in the 75-225 GHz range and optimized at 210 GHz for general use in condensed matter physics, chemistry and biology. The quasi-optical bridge detects the change of mm…

Materials Science · Physics 2012-10-23 Kalman L Nagy , Dario Quintavalle , Titusz Feher , Andras Janossy

We study nonequilibrium dephasing in an electronic Mach-Zehnder interferometer. We demonstrate that the shot noise at the beam splitter of the interferometer generates an ensemble of nonequilibrium electron density configurations and that…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Seok-Chan Youn , Hyun-Woo Lee , H. -S. Sim

We investigated experimentally the high-temperature electrical resistance of graphene interconnects. The test structures were fabricated using the focused ion beam from the single and bi-layer graphene produced by mechanical exfoliation. It…

Materials Science · Physics 2008-05-24 Q. Shao , G. Liu , D. Teweldebrhan , A. A. Balandin

We study theoretically electronic Mach-Zehnder interferometers built from integer quantum Hall edge states, showing that the results of recent experiments can be understood in terms of multiparticle interference effects. These experiments…

Strongly Correlated Electrons · Physics 2010-05-27 D. L. Kovrizhin , J. T. Chalker

Detection of infrared light is central to diverse applications in security, medicine, astronomy, materials science, and biology. Often different materials and detection mechanisms are employed to optimize performance in different spectral…

Mesoscale and Nanoscale Physics · Physics 2012-07-03 J. Yan , M. -H. Kim , J. A. Elle , A. B. Sushkov , G. S. Jenkins , H. M. Milchberg , M. S. Fuhrer , H. D. Drew

Future experiments are using silicon detectors in a high radiation environment and in high magnetic fields. The radiation tolerance of silicon improves by cooling it to temperatures below 180 K. At low temperatures the mobility increases,…

Instrumentation and Detectors · Physics 2009-11-06 W. de Boer , V. Bartsch , J. Bol , A. Dierlamm , E. Grigoriev , F. Hauler , S. Heising , O. Herz , L. Jungermann , T. Schneider

A possibility of a few MeV electron beam diagnostics (Lorentz factor ~ 10) using polarization characteristics of the optical transition radiation (OTR) have been considered. Determinaton of the electron beam divergence have been performed…