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We measured angular distributions of differential cross section, beam analyzing power, and recoil polarization for neutral pion electroproduction at Q^2 = 1.0 (GeV/c)^2 in 10 bins of W across the Delta resonance. A total of 16 independent…

Nuclear Experiment · Physics 2010-05-27 J. J. Kelly

We have developed an easy to construct, non-resonant wideband NMR probe. The probe is of the saddle coil geometry and is designed such that the coil itself forms a transmission line. The probe thus requires no tuning or matching elements.…

Instrumentation and Detectors · Physics 2007-10-02 D. Murphree , S. B. Cahn , D. Rahmlow , D. DeMille

We present a novel fabrication procedure to produce high-quality lift-off structures on diamond anvils extending from the culet down to the slanted facets. Feature sizes down to 500 nm are achieved through the use of a bi-layer resist stack…

Mesoscale and Nanoscale Physics · Physics 2025-07-03 Z. R. Rehfuss , K. Zheng , S. L. Gould , K. W. Murch , S. Ran

The Quadrupole Resonator, designed to measure the surface resistance of superconducting samples at 400 MHz has been refurbished. The accuracy of its RF-DC compensation measurement technique is tested by an independent method. It is shown…

Accelerator Physics · Physics 2015-06-04 Tobias Junginger , Wolfgang Weingarten , Carsten Welsch

The paper introduces a novel dual-port dual-polarized magneto-electric dipole (MED) antenna with orthogonal Gamma and inverted-Gamma shape probes, which was fabricated by means of an additive 3D metal printing process. Electromagnetic wave…

Applied Physics · Physics 2025-06-24 Mehmet Ahad Yurtoglu , Ramez Askar

We present the development of a neutron detector array module made with $\textit{para}$-terphenyl, a bright, fast, n/$\gamma$ discriminating crystalline organic scintillator. The module is comprised of 2 cm $\times$ 2 cm $\times$ 2 cm…

Instrumentation and Detectors · Physics 2021-06-30 D. P. Scriven , G. Christian , G. V. Rogachev , C. E. Parker , L. G. Sobotka , S. Ahn , G. Chubarian , S. Ota , E. Aboud , J. Bishop , E. Koshchiy , A. G. Thomas

This study evaluates the performance of a twisted pair transmission line coil as a transceive element for 7T MRI in terms of physical flexibility, robustness to shape deformations, and interelement decoupling. Each coil element was created…

High quality micro- and nano-mechanical resonators are widely used in sensing, communications and timing, and have future applications in quantum technologies and fundamental studies of quantum physics. Crystalline thin-films are…

We present the results of the first in-beam studies of a medium size (10$\times$10 cm$^2$) Resistive-Plate WELL (RPWELL): a single-sided THGEM coupled to a pad anode through a resistive layer of high bulk resistivity ($\sim$10$^9…

Femtosecond laser writing in glass was harnessed to fabricate photonic circuits comprised of waveguides, micro-mirrors, and fiber sockets, in an optical interposer chip. The compact design enabled ultra-dense routing of 40 optical channels…

Optics · Physics 2025-12-02 Gligor Djogo , Amir Rahimnouri , Peter R Herman

We fabricate a liquid-core liquid-clad microcavity that is coupled to a standard tapered fiber, and then experimentally map the whispering-gallery modes of this droplet resonator. The shape of our resonator is similar to a thin prolate…

We demonstrate aqueous refractive index sensing with 15 to 30 {\mu}m diameter silicon nitride microdisk resonators to detect small concentrations of Li salt. A dimpled-tapered fiber is used to couple 780 nm visible light to the microdisks,…

Mesoscale and Nanoscale Physics · Physics 2015-04-06 C. Doolin , P. Doolin , B. C. Lewis , J. P. Davis

We describe the advantages of 2-dimensional, addressable arrays of spherical Paul traps. They would provide for the ability to address and tailor the interaction strengths of trapped objects in 2D and could establish a valuable new tool for…

Quantum Physics · Physics 2011-08-05 Muir Kumph , Michael Brownnutt , Rainer Blatt

Increasing the density of superconducting circuits requires compact components, however, superconductor-based capacitors typically perform worse as dimensions are reduced due to loss at surfaces and interfaces. Here, parallel plate…

We report the experimental demonstration of tunable asymmetric acoustic metasurfaces with extreme contrast, made by two decorated membrane resonators (DMRs) coupled via a sealed air column. The front side of the metasurface is impedance…

Applied Physics · Physics 2017-05-29 Songwen Xiao , Suet Tao Tang , Z. Yang

We report on the local probing and preparation of an ultracold Fermi gas on the length scale of one micrometer, i.e. of the order of the Fermi wavelength. The essential tool of our experimental setup is a pair of identical, high-resolution…

Quantum Gases · Physics 2011-04-11 Bruno Zimmermann , Torben Mueller , Jakob Meineke , Tilman Esslinger , Henning Moritz

We present a novel multipole formulation for computing the band structures of two-dimensional arrays of cylindrical Helmholtz resonators. This formulation is derived by combining existing multipole methods for arrays of ideal cylinders with…

Fluid Dynamics · Physics 2022-02-22 M. J. A. Smith , I. D. Abrahams

In this R&D, an innovative method for producing thin high-pressure laminate (HPL) electrodes for resistive plate chambers (RPC) for future high-energy experiments is introduced. Instead of using thick phenolic HPL (2-mm thick Bakelite),…

Instrumentation and Detectors · Physics 2025-06-05 Kyong Sei Lee , Giuseppe Iaselli , Youngmin Jo , Minho Kang , Tae Jeong Kim , Dayron Ramos Lopez , Gabriella Pugliese

Selene is the attempt to implement a new scheme for high-intensity specular reflectometry. Instead of a highly collimated beam one uses a convergent beam covering a large angular range. The angular resolution is then performed by a…

Instrumentation and Detectors · Physics 2011-02-15 J. Stahn , U. Filges , T. Panzner

We report the first conformal ultra-wide band (UWB) array on a doubly curved surface for wide angle electronic scanning. We use a quadrilateral mesh as the basis for systematically arraying UWB radiators on arbitrary surfaces. A prototype…

Applied Physics · Physics 2022-06-07 Carl Pfeiffer , Jeffrey Massman
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