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NIST Authors in Bold

Displaying 11976 - 12000 of 73697

Hyper-Ramsey spectroscopy with probe laser intensity fluctuations

March 29, 2018
Author(s)
Kyle P. Beloy
We examine the influence of probe laser intensity fluctuations on hyper-Ramsey spectroscopy. We assume, as is appropriate for relevant cases of interest, that the probe laser intensity $I$ determines both the Rabi frequency $(\propto\sqrt)$ and the

Incorporating an Optical Clock into a Time Scale at NIST: Simulations and Preliminary Real-Data Analysis

March 29, 2018
Author(s)
Jian Yao, Jeffrey A. Sherman, Tara M. Fortier, Thomas E. Parker, Judah Levine, Joshua J. Savory, Stefania Romisch, William F. McGrew, Robert J. Fasano, Stefan A. Schaeffer, Kyle P. Beloy, Andrew D. Ludlow
This paper shows the recent NIST work on incorporating an optical clock into a time scale. We simulate a time scale composed of continuously-operating commercial hydrogen masers and an optical frequency standard that does not operate continuously as a

SIM Time Scale: 10 years of operation

March 29, 2018
Author(s)
J. M. Lopez, Michael A. Lombardi, E. de Carlos, N. Munoz, C. Ortiz
The Inter-American Metrology System (SIM) is one of the world's five major Regional Metrology Organizations (RMO's). Starting in 2005, the SIM Time and Frequency Metrology Working Group (SIM TFWG) developed a time and frequency comparison network for the

Instrumenting Open vSwitch with Monitoring Capabalities: Designs and Challenges

March 28, 2018
Author(s)
Zili Zha, An Wang, Yang Guo, Douglas C. Montgomery, Songqing Chen
The recent advances on Software-Defined Networking (SDN) have made flexible and programmable network measurement possible. A promising trend is to conduct network traffic measurement on the widely deployed Open vSwitches (OVS) in data centers. However

Characterizing Gas-Collection Volumes with Acoustic and Microwave Resonances

March 27, 2018
Author(s)
Jodie Gail Pope, Keith A. Gillis, Michael R. Moldover, J B. Mehl, Eric Harman
We characterized a 1.8 m3, nearly-spherical, steel shell at pressures up to 7 MPa for use as a gas flow standard. For pressure, volume, temperature, and time measurements, the shell's cavity will collect gas; for blow-down measurements, the shell will be a

Effects of resonant-laser excitation on the emission properties in a single quantum dot

March 27, 2018
Author(s)
Sergey Polyakov, Vivien Loo, Edward Flagg, Glenn S. Solomon, Olivier Gazzano, Tobias Huber
While many solid-state emitters can be optically excited non-resonantly, resonant excitation is necessary for many quantum information protocols as it often maximizes the non-classicality of the emitted light. Here, we study the resonance fluorescence in a

Molecular Simulation of Capillary Phase Transitions in Flexible Porous Materials

March 27, 2018
Author(s)
Vincent K. Shen, Daniel W. Siderius, Nathan Mahynski
We used at-histogram sampling Monte Carlo to study capillary phase transitions in deformable adsorbent materials. Specifically, we considered a pure adsorbate fluid below its bulk critical temperature within a slit pore of variable pore width. The

Quantifying the post-quantum security-margin of popular block ciphers

March 27, 2018
Author(s)
Yi-Kai Liu, Brittanney Amento-Adelmann, Markus Grassl, Brandon Langenberg, Eddie Schoute, Rainer Steinwandt
Mounting an exhaustive key search against a block cipher with Grover's algorithm requires the implementation of the target cipher on a quantum computer. We report quantum circuits and resource bounds for various block ciphers with different design

Safeguards for Securing Virtualized Servers

March 27, 2018
Author(s)
Ramaswamy Chandramouli, Larry Feldman, Gregory A. Witte
This bulletin summarizes the information found in NIST SP 800-125A: Security Recommendations for Hypervisor Deployment on Servers, which provides technical guidelines regarding the secure execution of baseline functions of the hypervisor and are therefore

State-of-the-art and trends for the SI traceable value assignment of the purity of peptides using the model compound angiotensin I

March 27, 2018
Author(s)
Ralf D. Josephs, Norbert Stoppacher, Adeline Daireaux, Tiphaine Choteau, Katrice Lippa, Karen W. Phinney, Steven Westwood, Robert Wielgosz
Accurate diagnosis, monitoring and treatment are cornerstones of a healthcare system and require reliable measurements. The traceability of measurement results to stated references, and the development of Reference Measurement Systems (RMS), provide

Deuterated silicon nitride photonic devices for broadband optical frequency comb generation

March 26, 2018
Author(s)
Jeffrey T. Chiles, Nima Nader, Daniel D. Hickstein, Su Peng Yu, Travis Briles, David R. Carlson, Hojoong Jung, Jeffrey M. Shainline, Scott A. Diddams, Scott B. Papp, Sae Woo Nam, Richard P. Mirin
We report and characterize low-temperature, plasma-deposited deuterated silicon nitride films for nonlinear integrated photonics. With a peak processing temperature less than 300°C, it is back-end compatible with complementary metal-oxide semiconductor

High-precision measurements of n = 2 - n = 1 transition energies and level widths in He- and Be- like Argon Ions

March 26, 2018
Author(s)
Jorge Machado, Csilla Szabo-Foster, Jose Paulo Santos, Pedro Amaro, Mauro Guerra, Guojie Bian, Jean-Michel Isac, Paul Indelicato
We have performed a reference-free measurement of the transition energies of the 1s2p1P1 → 1s2 1S0 line in He-like argon, and of the 1s2s22p 1P1 → 1s22s2 1S0 line in Be-like argon ions. The highly-charged ions were produced in the plasma of an Electron

Testing IoT Systems

March 26, 2018
Author(s)
Jeffrey M. Voas, David R. Kuhn, Phil Laplante
The ability to test systems that are based on the underlying products and services commonly referred to as the Internet of 'things' (IoT) is discussed. The role of a static metric that can be applied to design, architectures, hardware, 'things', and

An Analytical Framework for Smart Manufacturing

March 25, 2018
Author(s)
Peter O. Denno, Amogh Kulkarni, Daniel Balasubramanian, Gabor Karsai
Smart manufacturing is an emerging paradigm for the next generation of manufacturing systems. One key to the success of smart manufacturing is the ability to use the production data for defining predictive and descriptive models and their analyses. However

Small Low-Depth Circuits for Cryptographic Applications

March 24, 2018
Author(s)
Joan Boyar, Magnus G. Find, Rene Peralta
We present techniques to obtain small circuits which also have low depth. The techniques apply to typical cryptographic functions, as these are often specified over the field GF(2), and they produce circuits containing only AND, XOR and XNOR gates. The

A Design Tool for High Performance Image Processing on Multicore Platforms

March 23, 2018
Author(s)
Timothy J. Blattner, Jiahao Wu, Walid Keyrouz, Shuvra S. Bhattacharyya
Design and implementation of smart vision systems often involve the mapping of complex image processing algorithms into efficient, real-time implementations on multicore platforms. In this paper, we describe a novel design tool that is developed to address
Displaying 11976 - 12000 of 73697
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