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Direct-write processes enable the alteration or deposition of materials in a continuous, directable, sequential fashion. In this work we demonstrate an electron beam direct-write process in an aberration-corrected scanning transmission…

Materials Science · Physics 2023-03-22 Ondrej Dyck , Andrew R. Lupini , Stephen Jesse

First principles computational methods can predict the superconducting critical temperature $T_{\mathrm{c}}$ of conventional superconductors through the electron-phonon spectral function. Full convergence of this quantity requires Brillouin…

Superconductivity · Physics 2025-08-27 Kieran Bozier , Kang Wang , Bartomeu Monserrat , Chris J. Pickard

A new tool providing material contrast control in scanning electron microscopy (SEM) is demonstrated. The approach is based on deep-UV illumination during SEM imaging and delivers a novel material based contrast as well as higher resolution…

Instrumentation and Detectors · Physics 2016-04-07 Gediminas Seniutinas , Armandas Balcytis , Saulius Juodkazis

We develop a novel algorithm for characterizing Deep Sub-Electron Read Noise (DSERN) image sensors. This algorithm is able to simultaneously compute maximum likelihood estimates of quanta exposure, conversion gain, bias, and read noise of…

Instrumentation and Detectors · Physics 2023-06-29 Aaron Hendrickson , David P. Haefner

We report a first exploration of High-angular-Resolution Electron Backscatter Diffraction, without using simulated Electron Backscatter Diffraction patterns as a reference, for absolute stress and orientation measurements in polycrystalline…

Materials Science · Physics 2018-11-26 Tijmen Vermeij , Marc De Graef , Johan Hoefnagels

Due to their radiation hardness, kilohertz frame rates, and high dynamic range, hybrid pixel detectors have recently expanded their application range to electron diffraction and recently also electron imaging. However, these detectors…

The realization of a high-efficiency microwave single photon detector is a long-standing problem in the field of microwave quantum optics. Here we propose a quantum non-demolition, high-efficiency photon detector that can readily be…

Quantum Physics · Physics 2018-05-23 Baptiste Royer , Arne L. Grimsmo , Alexandre Choquette-Poitevin , Alexandre Blais

Time projection chambers (TPCs) have found a wide range of applications in particle physics, nuclear physics, and homeland security. For TPCs with high-resolution readout, the readout electronics often dominate the price of the final…

Instrumentation and Detectors · Physics 2016-11-17 S. J. Ross , M. T. Hedges , I. Jaegle , M. D. Rosen , I. S. Seong , T. N. Thorpe , S. E. Vahsen , J. Yamaoka

Extraordinarily large but short electric field pulses are reported by many experiments to cause bipolar cancellation (BPC). This unusual cell response occurs if a first pulse is followed by a second pulse with opposite polarity. Possibly…

Subcellular Processes · Quantitative Biology 2018-07-04 Thiruvallur R. Gowrishankar , Julie V. Stern , Kyle C. Smith , James C. Weaver

We propose and test stable algorithms for the reconstruction of the internal conductivity of a biological object using acousto-electric measurements. Namely, the conventional impedance tomography scheme is supplemented by scanning the…

Analysis of PDEs · Mathematics 2015-05-20 Peter Kuchment , Leonid Kunyansky

Fundamental understanding of biological pathways requires minimally invasive nanoscopic optical resolution imaging. Many approaches to high-resolution imaging rely on localization of single emitters, such as fluorescent molecule or quantum…

Quantum Physics · Physics 2022-04-05 Shuo Li , Wenchao Li , Vladislav V. Yakovlev , Allison Kealy , Andrew D. Greentree

It has been argued that in atomic-resolution transmission electron microscopy (TEM) of sparse weakly scattering structures, such as small biological molecules, multiple electron scattering usually has only a small effect, while the…

Optics · Physics 2021-11-16 T. E. Gureyev , H. M. Quiney , A. Kozlov , D. M. Paganin , G. Schmalz , L. J. Allen

The tracking method based on the extreme learning machine (ELM) is efficient and effective. ELM randomly generates input weights and biases in the hidden layer, and then calculates and computes the output weights by reducing the iterative…

Machine Learning · Computer Science 2018-07-27 Jing Zhang , Huibing Wang , Yonggong Ren

Accurately controlling object count in text-to-image generation remains a key challenge. Supervised methods often fail, as training data rarely covers all count variations. Methods that manipulate the denoising process to add or remove…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Oz Zafar , Yuval Cohen , Lior Wolf , Idan Schwartz

We introduce and experimentally implement a method for the absolute detector calibration of photon-number-resolving time-bin multiplexing layouts based on the measured click statistics of superconduncting nanowire detectors. In particular,…

Quantum Physics · Physics 2017-03-10 Martin Bohmann , Regina Kruse , Jan Sperling , Christine Silberhorn , Werner Vogel

Bayesian methods provide an elegant framework for estimating parameter posteriors and quantification of uncertainty associated with probabilistic models. However, they often suffer from slow inference times. To address this challenge,…

Machine Learning · Computer Science 2024-05-10 Piyush Tiwary , Kumar Shubham , Vivek V. Kashyap , Prathosh A. P

In this paper, we study the inverse electromagnetic medium scattering problem of estimating the support and shape of medium scatterers from scattered electric or magnetic near-field data. We shall develop a novel direct sampling method…

Numerical Analysis · Mathematics 2015-06-12 Kazufumi Ito , Bangti Jin , Jun Zou

Electroabsorption spectroscopy of well-identified index-defined semiconducting carbon nanotubes is reported. The measurement of high definition electroabsorption spectra allows direct indexation with unique nanotube chirality. Results show…

We introduce a new image contrast mechanism for scanning transmission electron microscopy (STEM) that derives from the local symmetry within the specimen. For a given position of the electron probe on the specimen, the image intensity is…

Materials Science · Physics 2020-12-30 Matus Krajnak , Joanne Etheridge

Electron spectrometry is traditionally challenging due to the difficulty of correctly reconstructing the original energy of the detected electrons. Silicon Drift Detectors, extensively used for X-ray spectrometry, are a promising technology…

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