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The use of non-invasive sensors & systems to measure particle beam characteristics is a crucial part of modern accelerator control systems due to their ability to return real time passive measurements without impacting the beam quality.…

Instrumentation and Detectors · Physics 2024-10-25 A. Rouzky , N. Eddy , M. A. Ibrahim

Efficient transport of high-current negative ion beams is critical for accurate plasma potential diagnostics using heavy-ion beam probe (HIBP) systems in magnetically confined fusion plasmas. However, strong space-charge effects often…

Plasma Physics · Physics 2025-09-23 M. Nishiura , K. Nakamura , K. Ueda , A. Shimizu , H. Takubo , M. Kanda , T. Ido , M. Okamura

Acoustic metamaterials and phononic crystals represent a promising platform for the development of noise-insulating systems characterized by a low weight and small thickness. Nevertheless, the operational spectral range of these structures…

An S-band linear accelerator is the source of particles and the front end of the Advanced Photon Source injector. In addition, it supports a low-energy undulator test line (LEUTL) and drives a free-electron laser (FEL). A…

Accelerator Physics · Physics 2019-08-17 A. E. Grelick , N. Arnold , S. Berg , D. Dohan , G. Goeppner , Y. W. Kang , A. Nassiri , S. Pasky , G. Pile , T. Smith , S. J. Stein

A new 150 MeV electron storage ring is being built at Fermilab. The construction of a new machine pursues two goals: A test of highly non-linear integrable optics and a test of optical stochastic cooling. This paper discusses details of OSC…

Accelerator Physics · Physics 2014-09-22 V. A. Lebedev , Yu. Tokpanov , M. S. Zolotorev

Shortcuts to adiabaticity (STA) are a collection of quantum control techniques that achieve high fidelity outside of the adiabatic regime. Recently an extension to shortcuts to adiabaticity was proposed by the authors [Phys. Rev. Research…

Quantum Physics · Physics 2025-10-30 Chris Whitty , Anthony Kiely , Andreas Ruschhaupt

Solid-state quantum emitters embedded in circular Bragg resonators are attractive due to their ability to emit quantum states of light with high brightness and low multi-photon probability. As for any emitter-microcavity system, fabrication…

Although the single-impurity Kondo physics has already been well understood, the understanding of the Kondo lattice problem where a dense array of local moments couples to the conduction electrons is still far from complete. The ability of…

Strongly Correlated Electrons · Physics 2022-04-21 Shiwei Shen , Chenhaoping Wen , Pengfei Kong , Jingjing Gao , Jianguo Si , Xuan Luo , Wenjian Lu , Yu-Ping Sun , Gang Chen , Shichao Yan

Objects sensed by laser interferometers are usually not stable in position or orientation. This angular instability can lead to a coupling of angular tilt to apparent longitudinal displacement -- tilt-to-length coupling (TTL). In LISA this…

Instrumentation and Methods for Astrophysics · Physics 2018-04-24 M Tröbs , S Schuster , M Lieser , M Zwetz , M Chwalla , K Danzmann , G Fernandez Barranco , E D Fitzsimons , O Gerberding , G Heinzel , C J Killow , M Perreur-Lloyd , D I Robertson , T S Schwarze , G Wanner , H Ward

We study the thermally fluctuating state of a bi-layer cuprate superconductor under the periodic action of a staggered field oscillating at optical frequencies. This analysis distills essential elements of the recently discovered phenomenon…

Superconductivity · Physics 2015-03-13 R. Höppner , B. Zhu , T. Rexin , A. Cavalleri , L. Mathey

The rapid rise in inverter-based renewable resources has heightened concerns over subsynchronous resonance and oscillations, thereby challenging grid stability. This paper reviews approaches to identify and mitigate these issues, focusing…

Systems and Control · Electrical Eng. & Systems 2025-01-16 Shuvangkar Chandra Das , Lokesh Saravana , Le Minh Vu , Manh Bui , Tuyen Vu , Jianhua Zhang , Thomas Ortmeyer

We present a one dimensional model for the nonlinear response of a colloidal crystal to intense light illumination along a high symmetry direction. The strong coupling between light and the colloidal lattice, via the electric gradient force…

Condensed Matter · Physics 2009-10-30 E. Lidorikis , Qiming Li , C. M. Soukoulis

Recent advances in the development of ultra-low loss silicon nitride (Si3N4)-based photonic integrated circuits have allowed integrated lasers to achieve a coherence exceeding those of fiber lasers and enabled unprecedentedly fast…

This study presents active beam steering and afocal zooming of light by incorporating liquid crystals (LCs) with graded index photonic crystal (GRIN PC). The GRIN PC structures are composed of low refractive index polymer annular rods…

Applied Physics · Physics 2019-09-04 Ceren Babayigit , Hamza Kurt , Mirbek Turduev

A key action for enhancing the sensitivity of gravitational wave (GW) detectors based on laser interferometry is to increase the laser power. However, in such a high-power regime, a nonlinear optomechanical phenomenon called parametric…

Instrumentation and Methods for Astrophysics · Physics 2019-10-16 Margherita Turconi , Thomas Harder , Rémi Soulard , Walid Chaibi

Commissioning at the SCRF accelerator at the Fermilab Accelerator Science and Technology (FAST) Facility has included the implementation of a versatile bunch-length monitor located after the 4-dipole chicane bunch compressor for electron…

Accelerator Physics · Physics 2017-12-29 A. H. Lumpkin , R. Thurman-Keup , D. Edstrom , J. Ruan , J. Santucci

ASTRI is a Flagship Project of the Italian Ministry of Education, University and Research, led by the Italian National Institute of Astrophysics, INAF. One of the main aims of the ASTRI Project is the design, construction and verification…

Instrumentation and Methods for Astrophysics · Physics 2013-07-23 Giacomo Bonnoli , Rodolfo Canestrari , Osvaldo Catalano , Giovanni Pareschi , Luca Stringhetti , Luca Perri

A spintronic method of ultra-fast broadband microwave spectrum analysis is proposed. It uses a rapidly tuned spin torque nano-oscillator (STNO), and does not require injection locking. This method treats an STNO generating a microwave…

Fast beam collinear laser spectroscopy is the established method to investigate nuclear ground state properties such as the spin, the electromagnetic moments, and the charge radius of exotic nuclei. These are extracted with high precision…

In automatic target recognition (ATR) systems, sensors may fail to capture discriminative, fine-grained detail features due to environmental conditions, noise created by CMOS chips, occlusion, parallaxes, and sensor misalignment. Therefore,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Shoaib Meraj Sami , Md Mahedi Hasan , Nasser M. Nasrabadi , Raghuveer Rao