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Chirality, a fundamental property of asymmetric structures, plays a crucial role in pharmaceutical, biological and chemical systems, offering a powerful tool for screening organic compounds. While the conventional optical chirality…

Mesoscale and Nanoscale Physics · Physics 2024-11-20 Mohammad Shafiei , Sahar Safavi Moayeri , Milorad V. Milošević

We found that temperature-dependent infrared spectroscopy measurements (i.e., reflectance or transmittance) using a Fourier-transform spectrometer can have substantial errors, especially for elevated sample temperatures and collection using…

Charge carrier mobility and recombination determine the performance of many opto-electronic devices such as solar cells, sensors and light-emitting diodes. Understanding how these parameters change as a function of material choice, charge…

Applied Physics · Physics 2025-06-30 Markus Hußner , Carsten Deibel , Roderick Charles Ian MacKenzie

Existing Charge-Coupled Devices (CCDs) operate by detecting either the electrons or holes created in an ionization event. We propose a new type of imager, the Dual-Sided CCD, which collects and measures both charge carriers on opposite…

The flight calibration of the spectral response of the Advanced CCD Imaging Spectrometer (ACIS) below 1.5 keV is difficult because of the lack of strong lines in the calibration source on-board the Chandra X-ray Observatory. We have been…

Low-noise detectors are a key technology for the next generation of astronomical instruments aimed at spectroscopy of faint objects and the search for exoplanets. In this context, the multiple-amplifier sensing charge-coupled device…

Skipper Charge-Coupled Devices (Skipper-CCDs) are a leading technology in the search for sub-GeV dark matter and coherent elastic neutrino-nucleus scattering. A key background for rare-event searches with these detectors arises from…

The possibility of measuring the post-Newtonian gravitoelectric correction to the orbital period of a test particle freely orbiting a spherically symmetric mass in the Solar System is analyzed. It should be possible, in principle, to detect…

General Relativity and Quantum Cosmology · Physics 2012-07-31 Lorenzo Iorio

A CMOS pixel sensor, named Supix-1, is developed for a pixelated silicon tracker for the Circular Electron-Positron Collider (CEPC) project. The sensor, consisted of nine sectors varying in pixel sizes, diode sizes and geometries, is…

Instrumentation and Detectors · Physics 2022-02-24 Long Li , Liang Zhang , Jianing Dong , Jian Liu , Meng Wang

Exoplanetary science heavily relies on transit depth ($D$) measurements. Yet, as instrumental precision increases, the uncertainty on $D$ appears to increasingly drift from expectations driven solely by photon-noise. Here we characterize…

Earth and Planetary Astrophysics · Physics 2025-10-02 Samson J. Mercier , Julien de Wit , Benjamin V. Rackham

LSST Camera CCDs produced by the manufacturer e2v exhibit strong and novel residual charge images when exposed to bright sources. These manifest in images following bright exposures both in the same pixel areas as the bright source, and in…

Instrumentation and Methods for Astrophysics · Physics 2025-03-05 Daniel Polin , Adam Snyder , Craig Lage , J. Anthony Tyson

In this paper we present the testing of a back-illuminated development Euclid Visible Instrument (VIS) Charge-Coupled Device (CCD) to measure the intrinsic CCD Point Spread Function (PSF) characteristics using a novel modelling technique.…

Instrumentation and Methods for Astrophysics · Physics 2015-06-23 Sami-Matias Niemi , Mark Cropper , Magdalena Szafraniec , Thomas Kitching

High-contrast imaging relies on advanced coronagraphs and adaptive optics (AO) to attenuate the starlight. However, residual aberrations, especially non-common path aberrations between the AO channel and the coronagraph channel, limit the…

Instrumentation and Methods for Astrophysics · Physics 2025-11-11 Axel Potier , Raphaël Galicher , Pierre Baudoz , Johan Mazoyer , Zahed Wahhaj , Ruben Tandon , Jonas G. Kühn , Laura Perez , Gael Chauvin

Conformal prediction is a powerful tool for constructing prediction intervals for black-box models, providing a finite sample coverage guarantee for exchangeable data. However, this exchangeability is compromised when some entries of the…

Machine Learning · Statistics 2025-05-09 Qian Peng , Yajie Bao , Haojie Ren , Zhaojun Wang , Changliang Zou

Modern scientific instruments operate under increasingly extreme constraints on bandwidth, latency, and power. Inference at the sensor edge determines experimental data collection efficiency by deciding which information to save for further…

Upcoming and current large astronomical survey experiments often seek to constrain cosmological parameters via measurements of subtle effects such as weak lensing, which can only be measured statistically. In these cases, instrumental…

Instrumentation and Methods for Astrophysics · Physics 2015-06-11 C. W. Walter

We present a measurement of the charged particle reconstruction inefficiency inside of jet cores, using data collected by the ATLAS experiment in 2015 of $pp$ collisions produced at the LHC, at a center-of-mass energy of 13 TeV. The…

High Energy Physics - Experiment · Physics 2017-01-04 Jason D. Mansour

Electron ptychography provides highly sensitive, dose efficient phase images which can be corrected for aberrations after the data has been acquired. This is crucial when very precise quantification is required, such as with sensitivity to…

Materials Science · Physics 2023-07-27 Christoph Hofer , Timothy J. Pennycook

Thin-film transistors (TFTs) represent a wide-spread tool to determine the charge-carrier mobility of materials. Mobilities and further transistor parameters like contact resistances are commonly extracted from the electrical…

Tearing patterns affecting flat field frames in CCDs are a visually striking obstacle to performing Pixel Response Non-Uniformity corrections. These patterns can be explained by lateral field distortions, caused by the non-uniform…

Instrumentation and Methods for Astrophysics · Physics 2020-02-24 Claire Juramy , Pierre Antilogus , Laurent Le Guillou , Eduardo Sepulveda