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Displaying 851 - 875 of 1415

Stabilizing and Measuring Optical Frequencies

October 1, 1999
Author(s)
John L. Hall, M S. Taubman, Scott A. Diddams, B Tiemann, Jun Ye, L -. Ma, D J. Jones, Steven T. Cundiff
Many factors are coming together to make this an exciting time in the development of optical frequency standards. These include improved strategies for interrogation of the resonant quantum reference sample, improved accuracy and control of the modulation

Demonstrating Broadside-Coupled Coplanar Waveguide Interconnects to 325 GHz

August 15, 2024
Author(s)
Nicholas Jungwirth, Bryan Bosworth, Aaron Hagerstrom, Meagan Papac, Eric Marksz, JEROME CHERON, Kassiopeia Smith, Angela Stelson, Ari Feldman, Dylan Williams, Nathan Orloff, Christian Long
… loss of these contactless interconnects was approximately 1.4 dB at the maximum in the passbands at 63 GHz, 93 GHz, and …

Reproducible graphene synthesis by oxygen-free chemical vapour deposition

May 29, 2024
Author(s)
Jacob Amontree, Xingzhou Yan, Christopher DiMarco, Pierre Levesque, Tehseen Adel, Jordan Pack, Madisen Holbrook, Christian Cupo, Zhiying Wang, Dihao Sun, Adam Biacchi, Charlezetta Stokes, Kenji Watanabe, Takashi Taniguchi, Cory Dean, Angela R. Hight Walker, Katayun Barmak, Richard Martel, James Hone
… (CVD) has led to enormous interest worldwide over the past 14 years. The graphene CVD process involves flow of a carbon …

Reference Correlations for the Density and Thermal Conductivity, and Review of the Viscosity Measurements, of Liquid Titanium, Zirconium, Hafnium, Vanadium, Niobium, Tantalum, Chromium, Molybdenum, and Tungsten

January 22, 2024
Author(s)
Eleftheria Ntonti, Sofia Sotiriadou, Marc Assael, Marcia L. Huber, Boris Wilthan, Manabu Watanabe
… by an expanded uncertainty (95 %) of 2.0 %, 2.1 %, 1.9 %, 2.2 %, 2.4 %, 2.6 %, 3.2 %, 2.1 % and 4.1 %, … are characterized by an expanded uncertainty (95 %) of 14.3 %, 8.4 %, 6.1 %, 11.4 %, 7.6 %, 4.0 %, 4.6 %, and 5.1 %, …

Physical Properties of the Quasi-Two-Dimensional Square Lattice Antiferromagnet Ba 2 FeSi 2 O 7

December 28, 2021
Author(s)
Tae-Hwan Jang, Seung-Hwan Do, Minseong Lee, Hui Wu, Craig Brown, Andrew D. Christianson, Sang-Wook Cheong, Jae-Hoon Park
… = 5.2 K. Neutron diffraction data shows a collinear Q m = (1,0,1/2) antiferromagnetic (AFM) structure below TN but the … with a large single-ion in-plane anisotropy D = 1.4 meV and a rather small Heisenberg exchange J intra = 0.15 …

Compact 1.7 K Cryocooler for Superconducting Nanowire Single-Photon Detectors

June 18, 2020
Author(s)
Vincent Y. Kotsubo, Joel N. Ullom, Sae Woo Nam
… acceptance. Toward this end, we are developing a compact 1.7 K closed-cycle pulse tube/Joule-Thomson hybrid cryocooler … and the Joule-Thomson coldhead has demonstrated over 1.4 mW of cooling at 1.7 K. The Joule-Thomson compressor is under development and … Compact 1.7 K Cryocooler for Superconducting Nanowire Single-Photon …

The hunt for refrigerant blends to replace R-134a

August 1, 2019
Author(s)
Ian H. Bell, Piotr A. Domanski, Gregory T. Linteris, Mark O. McLinden
… While no mixture was ideal in all regards, we identified 14 binary and ternary blends that were nonflammable (based on …

Effects of Partial Halide Anion Substitution on Reorientational Motion in NaBH 4 : A Nuclear Magnetic Resonance Study

March 4, 2015
Author(s)
R. V. Skoryunov, O. A. Babanova, A. V. Soloninin, A. V. Skripov, Kristina Verdal, Terrence J. Udovic
… motion of [BH 4 ] anions in NaBH 4 , we have measured the 1 H and 11 B NMR spectra and spin-lattice relaxation rates in … of temperature (8 K to 324 K) and the resonance frequency (14 MHz to 90 MHz). For both solid solutions, the measured 1 H spin-lattice relaxation rates are governed by …
Displaying 851 - 875 of 1415
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