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You searched on: Author: Kevin Coakley

Displaying records 1 to 10 of 67 records.
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1. Near-field control and imaging of free charge carrier variations in GaN nanowires
Published: 2/15/2016
Authors: Samuel Berweger, Paul T Blanchard, Matthew David Brubaker, Kevin J Coakley, Norman A Sanford, Thomas M Wallis, Kristine A Bertness, Pavel Kabos
Abstract: Despite their uniform crystallinity, the shape and faceting of semiconducting nanowires (NWs) can give rise to variations in structure and associated electronic properties. Here we investigate local variations in electronic structure across indiv ...

2. Survival analysis approach to account for non-exponential decay rate effects in lifetime experiments
Published: 1/13/2016
Authors: Kevin J Coakley, Maynard S Dewey, Michael G Huber, Hans P Mumm, Alan K Thompson, Andrew T. Yue, C. R. Huffer, P. R. Huffman, C. M. O'Shaughnessy, K. W. Schelhammer, D. E. Marley
Abstract: In experiments that measure the lifetime of trapped particles, in addition to loss mechanisms with exponential survival probability functions, particles can be lost by mechanisms with non-exponential survival probability functions. Failure to account ...

3. A strong loophole-free test of local realism
Published: 12/16/2015
Authors: Lynden Krister Shalm, Evan Meyer-Scott, B. G. Christensen, Peter LaBonne Bierhorst, Michael Alan Wayne, Deny Hamel, Martin J Stevens, Thomas Gerrits, Scott C Glancy, Michael Shane Allman, Kevin J Coakley, Shellee Dawn Dyer, Adriana E Lita, Varun Boehm Verma, Joshua C Bienfang, Alan L Migdall, Yanbao Zhang, William Farr, Francesco Marsili, Matthew D. Shaw, Jeffrey Stern, Carlos Abellan, Waldimar Amaya, Valerio Pruneri, Thomas Jennewein, Morgan Mitchell, P. G. Kwiat, Richard P Mirin, Emanuel H Knill
Abstract: We present a loophole-free violation of local realism using entangled photon pairs. We ensure that all relevant events in our Bell test are spacelike separated by placing the parties far enough apart and by using fast random number generators and hig ...

4. Update on the MiniCLEAN Dark Matter Experiment
Published: 3/24/2015
Authors: Kevin J Coakley, K. Rielage, M. Akashi-Ronquest, M. Bodmer, R. Bourque, B. Buck, A. Butcher, T. Caldwell, Y. Chen, F. A. Duncan, E. Flores, J. A. Formaggio, D. Glaster, F. Giuliani, M. Gold, E. Grace, J. Griego, N. Guerrero, V. Guiseppe, R. Henning, A. Hime, S. Jaditz, C. Kachulis, E. Kearns, J. Kelsey, J. R. Klein, A. Latorre, I. Lawson, O. Li, P. Liimatainen, S. Linden, F. Lopez, K. McFarlane, D. N. McKinsey, S. MacMullin, A. Mastbaum, D.-M. Mei, J. Monroe, J. A. Nikkel, J. Oertel, G. D. Orebi Gann, K. Palladino, G. Perumpilly, L. Rodriguez, R. Schnee, S. Seibert, J. Walding, B. Wang, J. Wang, C. Zhang
Abstract: The direct search for dark matter is entering a period of increased sensitivity to the hypothetical Weakly Interacting Massive Particle (WIMP). One such technology that is being examined is a scintillationonly noble liquid experiment, MiniCLEAN. Mi ...

5. Bell Inequalities for Continuously Emitting Sources
Published: 3/4/2015
Authors: Emanuel H Knill, Scott C Glancy, Sae Woo Nam, Kevin J Coakley, Yanbao Zhang
Abstract: A common experimental strategy for demonstrating non-classical correlations is to show violation of a Bell inequality by measuring a continuously emitted stream of entangled photon pairs. The measurements involve the detection of photons by two spat ...

6. Bell inequalities for continuously emitting sources
Published: 3/4/2015
Authors: Emanuel H Knill, B. G. Christensen, A. Hill, Y. Zhang, Scott C Glancy, Kevin J Coakley, Lynden Krister Shalm, Sae Woo Nam, P. G. Kwiat
Abstract: We apply a distance-based Bell-test analysis method ["Bell inequalities for continuously emitting sources" E. Knill et al. arXiv:14097732 (2014)] to three experimental data sets where conventional analyses failed or required additional assumptions. T ...

7. Improving Photoelectron Counting and Particle Identification in Scintillation Detectors with Bayesian Techniques
Published: 12/19/2014
Authors: Kevin J Coakley, M. Akashi-Ronquest, P.-A. Amaudruz, B. Beltran, M. Bodmer, M.G. Boulay, R. Bourque, B. Buck, A. Butcher, B. Cai, T. Caldwell, M. Chen, Y. Chen, B. Cleveland, F. A. Duncan, E. O'Dwyer, E. Flores, J. A. Formaggio, D. Gastler, F. Giuliani, M. Gold, V. V. Golovko, P. Gore, K. Graham, E. Grace, J. Griego, N. Guerrero, V. Guiseppe, A. L. Hallin, P. Harvey, R. Henning, A, Hime, J. Hofgartner, S. Jaditz, C. J. Jillings, C. Kachulis, E. Kearns, J. Kelsey, J. R. Klein, M. Ku'zniak, A. Latorre, L. Lawson, O. Li, J. J. Lidgard, P. Liimatainen, S. Linden, W. H. Lippincott, F. Lopez, K. McFarlane, R. Mathew, A. B. McDonald, D.-M Mei, J. Monroe, A. Muir, C. Nantais, J. A. Nikkel, J. Oertel, K. Olsen, G. D. Orebi Gann, C. Oullet, K. Palladino, P. Pasuthip, G. Perumpilly, T. Pollmann, W. Rau, F. Reti'ere, L. Rodriguez, R. Schnee, S. Seibert, P. Skensved, T. Sonley, E. V'azquez Ja' uregui, J. Walding, B. Wang
Abstract: Many current and future dark matter and neutrino detectors are designed to record scintillation light with a large array of photomultiplier tubes (PMTs). The energy resolution and particle identification capabilities of these detectors depend in part ...

8. Adaptive and Robust Statistical Methods for Processing Near-Field Scanning Microwave Microscopy Images
Published: 11/23/2014
Authors: Kevin J Coakley, Samuel Berweger, Atif A. Imtiaz, Thomas M Wallis, Joel C Weber, Pavel Kabos
Abstract: Near-field scanning microwave microscopy offers great potential to facilitate characterization, development and modeling of materials. By acquiring microwave images at multiple frequencies and amplitudes (along with the other modalities) one can stud ...

9. Nonproportionality in the scintillation light yield of bismuth germanate
Published: 11/11/2014
Authors: Thomas R Gentile, M J Bales, H Breuer, T E Chupp, Kevin J Coakley, R L Cooper, Jeffrey S Nico, B. O'Neill
Abstract: We present measurements of nonproportionality in the scintillation light yield of bismuth germanate (BGO) for gamma-rays with energies between 6 keV and 662 keV. The scintillation light was read out by avalanche photodiodes (APDs) with both the BGO c ...

10. Detection of Hazardous Liquids using Microwave
Published: 9/24/2014
Authors: Michael D Janezic, Jolene D Splett, Kevin J Coakley, James R. Baker-Jarvis
Abstract: The primary objective of this study is to determine the feasibility of using low-power microwaves to distinguish between hazardous and non-hazardous liquids at security checkpoints. According to the 2008 High-Priority Technology Needs, a report publi ...

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