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Optically-pumped atomic magnetometers have previously been used in arrays to reject interference from far away sources and enable the sensitive detection of local sources of radio frequency (RF) signals, useful, for instance, in the…

Instrumentation and Detectors · Physics 2026-02-10 Ayse Marasli , Thomas Kornack , Casey Oware , Karen L. Sauer

A two-dimensional position-sensitive microchannel plate detector, with a {\O}100 mm sensitive area and equipped with four integrated amplifiers, is realized with a new anode scheme. The anode is constructed by two independent…

Instrumentation and Detectors · Physics 2018-08-01 Yuezhao Zhang , Deyang Yu , Junliang Liu , Liping Yang , Wei Wang , Xiaoxiao Li , Xiaona Zhu , Xiaoxun Song , Xinfei Hui , Wei Xi , Xin Li , Huiping Liu , Xiaohong Cai

The second-order harmonic (2f) component generated by twin-rotary compressor is a dominant low-frequency noise source of variable refrigerant flow (VRF) outdoor units, yet its amplitude fluctuates strongly with environmental thermal load…

Signal Processing · Electrical Eng. & Systems 2026-05-05 ZhiWei Su , Ding Wang , Yuan Guo , Yang Qiao , HongJun Cao

Extremely radiation hard sensors are needed in particle physics experiments to instrument the region near the beam pipe. Examples are beam halo and beam loss monitors at the Large Hadron Collider, FLASH or XFEL. Currently artificial diamond…

Instrumentation and Detectors · Physics 2015-09-02 O. Karacheban , K. Afanaciev , M. Hempel , H. Henschel , W. Lange , J. L. Leonard , I. Levy , W. Lohmann , S. Schuwalow

In this paper, we examine the use of a deep multi-layer perceptron model architecture to classify received signal samples as coming from one of four common waveforms, Single Carrier (SC), Single-Carrier Frequency Division Multiple Access…

Signal Processing · Electrical Eng. & Systems 2021-08-18 C. Tanner Fredieu , Justin Bui , Anthony Martone , Robert J. Marks , Charles Baylis , R. Michael Buehrer

We describe and experimentally evaluate a stabilized radio-frequency transfer technique that employs optical phase sensing and optical phase actuation. This technique can be achieved by modifying existing stabilized optical frequency…

Instrumentation and Methods for Astrophysics · Physics 2018-02-14 David Gozzard , Sascha Schediwy , Richard Whitaker , Keith Grainge

Precise alignment sensing and control are essential for maintaining the stability of laser interferometric gravitational-wave detectors. Conventional Wave Front Sensing technique (WFS), which relies on the beat between the carrier and…

General Relativity and Quantum Cosmology · Physics 2026-03-04 Chiaki Hirose , Kenta Tanaka , Osamu Miyakawa , Takafumi Ushiba

We report the enhanced transmission of electromagnetic waves through a single subwavelength aperture by making use of the resonance behavior of a split ring resonator (SRR) at microwave frequencies. By placing a single SRR at the near-field…

We present a microscope paradigm that performs differential interference imaging with high sensitivity via optical amplification and radio-frequency (RF) heterodyne detection. This method, termed differentially-enhanced sideband imaging via…

Optics · Physics 2015-03-26 A. M. Fard , A. Mahjoubfar , B. Jalali

A theoretical platform is developed for active elastic-wave sensing of (stationary and advancing) fractures along bi-material interfaces in layered composites. Damaged contact surfaces are characterized by a heterogeneous distribution of…

Numerical Analysis · Mathematics 2018-01-17 Fatemeh Pourahmadian , Irene de Teresa

We present an interferometric inertial sensor that utilizes two counter-propagating atomic beams with transverse two-dimensional cooling. By employing three parallel and spatially aligned Raman laser beams for Doppler-sensitive Raman…

Atomic Physics · Physics 2025-07-29 Pei-Qiang Yan , Wei-Chen Jia , Ke Shen , Yue Xin , Yan-Ying Feng

We report on an optimal binary strategy for angular displacement estimation. The measuring system is a modified Mach-Zehnder interferometer fed by a coherent state carrying orbital angular momentum, and two Dove prisms are embedded in two…

Quantum Physics · Physics 2019-03-27 Jian-Dong Zhang , Zi-Jing Zhang , Long-Zhu Cen , Jun-Yan Hu , Yuan Zhao

Sensing via a mechanical frequency shift is a powerful measurement tool, and, therefore, understanding and mitigating frequency noise affecting mechanical resonators is imperative. Thermomechanical noise fundamentally limits mechanical…

Mesoscale and Nanoscale Physics · Physics 2026-03-09 Sofia C. Brown , Ravid Shaniv , Ruomu Zhang , Chris Reetz , Cindy A. Regal

The wide range of interesting electromagnetic behavior of contemporary materials requires that experimentalists working in this field master many diverse measurement techniques and have a broad understanding of condensed matter physics and…

Optics · Physics 2015-02-05 R. Joffe , E. O. Kamenetskii , R. Shavit

Acoustic detection has many applications across science and technology, from medical to imaging and communications. However, most acoustic sensors have a common limitation in that the detection must be near the acoustic source.…

We report on progress in developing compact sensors for atomic force microscopy (AFM), in which the mechanical transducer is integrated with near-field optical readout on a single chip. The motion of a nanoscale, doubly-clamped cantilever…

Optics · Physics 2015-06-05 Yuxiang Liu , Houxun Miao , Vladimir Aksyuk , Kartik Srinivasan

Nitrogen-vacancy (NV) centers in diamond offer a sensitive method of measuring the spatially localized dynamics of magnetization and associated spin textures in ferromagnetic materials. We use NV centers in a deterministically positioned…

Mesoscale and Nanoscale Physics · Physics 2024-03-29 Jeffrey Rable , Jyotirmay Dwivedi , Nitin Samarth

A polarization-independent reconfigurable frequency selective rasorber (FSR)/absorber with low insertion loss based on diodes is proposed in this paper. The presented structure consists of a lossy layer based on square loops and a bandpass…

Applied Physics · Physics 2020-08-11 Jing Yuan , Xiangkun Kong , Xuemeng Wang , Shunliu Jiang , Lingqi Kong

High-resolution coherent x-ray diffraction experiment has been performed on the charge density wave (CDW) system K$_{0.3}$MoO$_3$. The $2k_F$ satellite reflection associated with the CDW has been measured with respect to external dc…

Strongly Correlated Electrons · Physics 2025-01-08 D. Le Bolloc'h , V. L. R. Jacques , N. Kirova , J. Dumas , S. Ravy , J. Marcus , F. Livet

We theoretically and numerically investigate the evolution of discrete soliton in a 1D linearly chirped nonlinear waveguide array (WA). The discrete soliton is self-accelerated inside the transversely chirped WA and emits a \textit{dynamic…

Optics · Physics 2020-09-23 Anuj P. Lara , Samudra Roy
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