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Electroluminescence (EL) imaging is a powerful and established technique for assessing the quality of photovoltaic (PV) modules, which consist of many electrically connected solar cells arranged in a grid. The analysis of imperfect…

Computer Vision and Pattern Recognition · Computer Science 2020-09-01 Evgenii Sovetkin , Ansgar Steland

In this letter we describe our novel photon regeneration experiment for the axionlike particle search using a x-ray beam with a photon energy of 50.2 keV and 90.7 keV, two superconducting magnets of 3 T, and a Ge detector with a high…

High Energy Physics - Experiment · Physics 2010-12-28 Remy Battesti , Mathilde Fouché , C. Detlefs , T. Roth , Paul Berceau , F. Duc , P. Frings , G. L. J. A. Rikken , Carlo Rizzo

With an ongoing trend in computing hardware towards increased heterogeneity, domain-specific co-processors are emerging as alternatives to centralized paradigms. The tensor core unit (TPU) has shown to outperform graphic process units by…

Disordered Systems and Neural Networks · Physics 2020-11-24 Mario Miscuglio , Volker J. Sorger

We report on the simulation results for the angular resolution of an electromagnetic (EM) sampling calorimeter with photons in the range of 100~MeV to 2~GeV. The simulation model of the EM calorimeter consists of alternating layers of a…

Instrumentation and Detectors · Physics 2023-04-26 Junlee Kim , Eun-Joo Kim , YoungJun Kim , JungKeun Ahn , GeiYoub Lim

The measurement of photon-number statistics of fields composed of photon pairs, generated in spontaneous parametric down-conversion and detected by an intensified CCD camera is described. Final quantum detection efficiencies, electronic…

Quantum Physics · Physics 2015-06-04 Jan Perina , Ondrej Haderka , Martin Hamar , Vaclav Michalek

We propose a new concept for the design of high-efficiency photocells based on ultra-thin (submicron) semiconductor films of controlled thickness. Using a microscopic model of a thin dielectric layer interacting with incident…

Materials Science · Physics 2009-11-13 D. Mozyrsky , I. Martin

In photon upconverting core-shell nanoparticles, structure strongly dictates performance. Conventional imaging in scanning transmission electron microscopy has sufficient resolution to probe the atomic structure of these nanoparticles, but…

Silicon photodetectors operating at near-infrared wavelengths with high-speed and high sensitivity are becoming critical for emerging applications, such as Light Detection and Ranging Systems (LIDAR), quantum communications, and medical…

The nuclear photo-emulsion technique is used to study the information carried by the medium energy nucleons produced in heavy ion collisions. Multiplicity, energies as well as the angular distribution of this type of particles are measured.…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. T. Hussein , N. M. Hassan , N. M. Sadek , Jamila Elsweedy

Correctly identifying the nature and properties of outgoing particles from high energy collisions at the Large Hadron Collider is a crucial task for all aspects of data analysis. Classical calorimeter-based classification techniques rely on…

High Energy Physics - Experiment · Physics 2021-04-06 Luke de Oliveira , Benjamin Nachman , Michela Paganini

A high efficiency method for the generation of correlated photon pairs accompanied by a reliable means to characterize the efficiency of that process is needed in the study of correlated photon pairs and entangled states involving more than…

Quantum Physics · Physics 2016-04-20 Yasuo Yamamoto , Goro Oohata , Kohji Mizoguchi

We propose to build the Electromagnetic calorimeter for the HADES di-lepton spectrometer. It will enable to measure the data on neutral meson production from nucleus-nucleus collisions, which are essential for interpretation of dilepton…

Frequency up-conversion of a few low-energy photons into a single high-energy photon contributes to imaging, light sources, and detection. However, the up-converting of many photons exhibits negligible efficiency. Up-conversion through…

Optics · Physics 2018-09-03 Dafna Granot , Nimrod Kruger , Assaf Manor , Carmel Rotschild

Rephasing in photon echoes is a fundamental mechanism of retrieving optical information stored in a collective ensemble of atoms or ions. With an extremely weak quantum optical data, population inversion by the rephasing process is…

Quantum Physics · Physics 2016-11-15 Byoung S. Ham

Thermal light sources exhibiting photon bunching have been suggested for sensing applications that exploit timing correlations of stationary light, including range finding, clock synchronization, and non-line-of-sight imaging. However,…

We develop a new approach to calculate the obtainable limit of photoconversion efficiency of tandem solar cells (SCs) and applied it to SCs with both vertical and lateral designs at AM0 and AM1.5 conditions. To get the maximum efficiency,…

Materials Science · Physics 2013-09-13 A. V. Sachenko , V. P. Kostylyov , N. P. Kulish , I. O. Sokolovskyi , A. I. Shkrebtii

Scatter can account for large errors in cone-beam CT (CBCT) due to its wide field of view, and its complicated nature makes its compensation difficult. Iterative polyenergetic reconstruction algorithms offer the potential to provide…

Medical Physics · Physics 2020-01-13 Jonathan H. Mason , Alessandro Perelli , William H. Nailon , Mike E. Davies

Photoelectrochemical (PEC) water splitting to generate hydrogen is one of the most studied methods for converting solar energy into clean fuel because of its simplicity and potentially low cost. Despite over 40 years of intensive research,…

Materials Science · Physics 2019-01-02 Ling-Ju Guo , Jun-Wei Luo , Tao He , Su-Huai Wei , Shu-Shen Li

A novel technique based on machine learning is introduced to reconstruct the decays of highly Lorentz-boosted particles. Using an end-to-end deep learning strategy, the technique bypasses existing rule-based particle reconstruction methods…

High Energy Physics - Experiment · Physics 2023-10-04 CMS Collaboration

A unified method for three-dimensional reconstruction of objects from transmission images collected at multiple illumination directions is described. The method may be applicable to experimental conditions relevant to absorption-based,…

Medical Physics · Physics 2022-12-07 Timur E. Gureyev , Hamish G. Brown , Harry M. Quiney , Leslie J. Allen