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Increasing the efficiency and reducing the footprint of on-chip photodetectors enables dense optical interconnects for emerging computational and sensing applications. Avalanche photodetectors (APD) are currently the dominating on-chip…

Instrumentation and Detectors · Physics 2023-11-08 Lining Liu , Simone Bianconi , Skylar Wheaton , Nathaniel Coirier , Farah Fahim , Hooman Mohseni

Fluorescence collection from individual emitters plays a key role in state detection and remote entanglement generation, fundamental functionalities in many quantum platforms. Planar photonics have been demonstrated for robust and scalable…

The requirements for broadband photodetection are becoming exceedingly demanding in hyperspectral imaging. Whilst intrinsic photoconductor arrays based on mercury cadmium telluride represent the most sensitive and suitable technology, their…

Tracking multiple particles in noisy and cluttered scenes remains challenging due to a combinatorial explosion of trajectory hypotheses, which scales super-exponentially with the number of particles and frames. The transformer architecture…

Machine Learning · Statistics 2025-06-12 Piyush Mishra , Philippe Roudot

We explore the Iterative Inference Hypothesis (IIH) within the context of transformer-based language models, aiming to understand how a model's latent representations are progressively refined and whether observable differences are present…

Computation and Language · Computer Science 2024-12-10 Greyson Brothers , Willa Mannering , Amber Tien , John Winder

The dynamics of electrons in counter-propagating, circularly polarized laser beams are shown to exhibit attractors whose ability to trap particles depends on the ratio of the beam intensities and a single parameter describing radiation…

Plasma Physics · Physics 2016-07-11 J. G. Kirk

Hyperspectral target detection is a task of primary importance in remote sensing since it allows identification, location, and discrimination of target features. To this end, the reflectance maps, which contain the spectral signatures and…

Signal Processing · Electrical Eng. & Systems 2023-05-24 Pia Addabbo , Nicomino Fiscante , Gaetano Giunta , Danilo Orlando , Giuseppe Ricci , Silvia Liberata Ullo

We measure the nonlinearity of a telecom-wavelength superconducting nanowire single-photon detector via incoherent beam combination. At typical photon count rates and detector bias current, the observed relative deviation from a perfectly…

Quantum Physics · Physics 2024-11-19 Patrick Mark , Sebastian Gstir , Julian Münzberg , Gregor Weihs , Robert Keil

The optical conductivity of heavy fermions can reveal fundamental properties of the charge carrier dynamics in these strongly correlated electron systems. Here we extend the conventional techniques of infrared optics on heavy fermions by…

Strongly Correlated Electrons · Physics 2016-04-13 Julia P. Ostertag , Marc Scheffler , Martin Dressel , Martin Jourdan

A Resistive Plate Chamber using Diamond-Like Carbon electrodes (DLC-RPC) has been developed as a background tagging detector in the MEG$~$II experiment. The DLC-RPC is planned to be installed in a high-intensity and low-momentum muon beam.…

Instrumentation and Detectors · Physics 2025-06-13 Masato Takahashi , Sei Ban , Weiyuan Li , Atsuhiko Ochi , Wataru Ootani , Atsushi Oya , Hiromu Suzuki , Kensuke Yamamoto

H II regions are the signposts of massive ($M\geq\,8\,M_\odot$) star-forming sites in our Galaxy. It has been observed that the ionizing photon rate inferred from the radio continuum emission of H II regions is significantly lower ($\sim$…

We have developed a three-dimensional radiative transfer method designed specifically for use with parallel adaptive mesh refinement hydrodynamics codes. This new algorithm, which we call hybrid characteristics, introduces a novel form of…

Astrophysics · Physics 2009-11-11 Erik-Jan Rijkhorst , Tomasz Plewa , Anshu Dubey , Garrelt Mellema

During the scheduled high luminosity upgrade of LHC, the world's largest particle physics accelerator at CERN, the position sensitive silicon detectors installed in the vertex and tracking part of the CMS experiment will face more intense…

Instrumentation and Detectors · Physics 2015-01-21 T. Peltola

Monolayer transition metal dichalcogenides (TMD) have numerous potential applications in ultrathin electronics and photonics. The exposure of TMD based devices to light generates photo-carriers resulting in an enhanced conductivity, which…

Time-resolved photoconductivity is widely used to characterize non-equilibrium charge-carrier lifetime, impurity content, and solar cell efficiency in a broad range of semiconductors. Most measurements are limited to the detection of…

Materials Science · Physics 2026-02-04 A. Bojtor , D. Krisztian , G. Parada , F. Korsos , S. Kollarics , G. Csosz , B. G. Markus , L. Forro , F. Simon

The distributed absorption of photons in photodiodes induces an excess noise in continuous-wave photodetection above the transit-time roll-off frequency. We show that it can be treated as a frequency-dependent excess optical loss in…

Quantum Physics · Physics 2018-12-11 Takahiro Serikawa , Akira Furusawa

Deep neural networks are proven to be vulnerable to backdoor attacks. Detecting the trigger samples during the inference stage, i.e., the test-time trigger sample detection, can prevent the backdoor from being triggered. However, existing…

Cryptography and Security · Computer Science 2023-04-03 Xiaogeng Liu , Minghui Li , Haoyu Wang , Shengshan Hu , Dengpan Ye , Hai Jin , Libing Wu , Chaowei Xiao

Inevitable interferences exist for the SAR system, adversely affecting the imaging quality. However, current analysis and suppression methods mainly focus on the far-field situation. Due to different sources and characteristics of…

Signal Processing · Electrical Eng. & Systems 2022-10-06 Xu Zhan , Xiaoling Zhang , Jun Shi , Shunjun Wei

Properties of entangled photon pairs generated in spontaneous parametric down-conversion are investigated in interference experiments. Strong energy correlations are demonstrated in a direct way. If a signal photon is detected behind a…

Quantum Physics · Physics 2015-06-26 Jan Soubusta , Jan Perina , Martin Hendrych , Ondrej Haderka , Pavel Trojek , Miloslav Dusek