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Author: Zachary Levine

Displaying records 1 to 10 of 103 records.
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1. Photon-number uncertainty in a superconducting transition-edge sensor beyond resolved-photon-number determination
Published: 9/10/2014
Authors: Zachary H Levine, Boris L. Glebov, Alan L Migdall, Thomas Gerrits, Brice R. Calkins, Adriana Eleni Lita, Sae Woo Nam
Abstract: As part of an effort to extend fundamental single-photon measurements into the macroscopic regime, we explore how best to assign photon-number uncertainties to output waveforms of a superconducting Transition Edge Sensor (TES) and how those assignmen ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916283

2. Polarization-Entangled Photon Pairs From Periodically-Poled Crystalline Waveguides Over a Range of Frequencies
Series: Journal of Research (NIST JRES)
Report Number: 118.018
Published: 8/15/2013
Authors: Zachary H Levine, Dylan A. Heberle
Abstract: We propose a method to extend the range of polarization entanglement in periodically poled rubidium- doped potassium titanyl phosphate (Rb:KTP) and titanium in-diffused lithium niobate (Ti:LN) waveguides. By fabricating waveguides at an angle rel ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911998

3. Fast, Optically Controlled Kerr Phase Shifter for Digital Signal Processing
Published: 4/18/2013
Authors: Runbing Li, Lu Deng, Edward Walter Hagley, Joshua C Bienfang, Zachary H Levine
Abstract: We demonstrate a large and fast-responding nonlinear Kerr phase shift using a room-temperature 85Rb vapor operated in a Raman gain scheme where the signal wave travels ,superluminallyŠ. Phase shifts of zero to π in comparison with a reference ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913278

4. An algorithm for finding clusters with a known distribution and its application to photon-number resolution using a superconducting transition-edge sensor
Published: 7/20/2012
Authors: Zachary H Levine, Thomas Gerrits, Alan L Migdall, Daniel Victor Samarov, Brice R. Calkins, Adriana Eleni Lita, Sae Woo Nam
Abstract: Improving photon-number resolution of single-photon sensitive detectors is important for many applications, as is extending the range of such detectors. Here we seek improved resolution for a particular Superconducting Transition-Edge Sensor (TES) t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911195

5. Uncertainty in RECIST as a measure of volume for lung nodules and liver malignoma
Published: 4/27/2012
Authors: Zachary H Levine, Adam L Pintar, John G Hagedorn, Charles D. Fenimore, Claus P. Heussel
Abstract: The authors investigate the extent to which the RESPONSE Evaluation Criateria in Solid Tumors (RECIST) can predict tumor volumes and changes in volume using clinical data. The data presented are a reanalysis of data acquired in other studies, includ ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909862

6. Tumor volume measurement errors RECIST studied with realistic tumor models
Series: Journal of Research (NIST JRES)
Published: 5/16/2011
Authors: Benjamin R. Galloway, Adele P Peskin, Zachary H Levine
Abstract: RECIST (Response Evaluation Criteria in Solid Tumors) is a linear measure intended to predict tumor volume in medical computed tomography (CT). In this work, using purely geometrical considerations, we estimate how well RECIST can predict the volume ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907952

7. Frequency-bin Entangled Comb of Photon Pairs From a Silicon-on-Insulator Micro-Resonator
Published: 1/13/2011
Authors: Jun Chen, Zachary H Levine, Jingyun Fan, Alan L Migdall
Abstract: We present a quantum-mechanical theory to describe narrow-band photon- pair generation via four-wave mixing in a Silicon-on-Insulator (SOI) micro- resonator. We also provide design principles for efficient photon-pair generation in an SOI mic ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906297

8. Heralded, pure-state single-photon source based on a Potassium Titanyl Phosphate waveguide
Published: 2/15/2010
Authors: Zachary H Levine, Jingyun Fan, Jun Chen, Alexander E. Ling, Alan L Migdall
Abstract: WWe analyze the generation of single spatial mode, spectrally uncorrelated photon pairs via type II spontaneous parametric downconversion in a Potassium Titanyl Phosphate (KTP) waveguide using real experimental parameters. We show that this source ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904223

9. Design considerations for a cascaded grating interferometer suitable for EUV interference lithography
Published: 4/10/2009
Authors: Zachary H Levine, Thomas B Lucatorto, Steven E Grantham
Abstract: The potential of a cascaded grating interferometer to perform Extreme Ultraviolet Interference Lithography (EUV-IL) depends on its beng coupled to a source that is bright enought to allow exposures ina reasonable time.   This work presents a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842467

10. A Low-Cost Density Reference Phantom for Computed Tomography
Published: 1/2/2009
Authors: Zachary H Levine, Ming-Dong Li, Anthony P Reeves, David F Yankelevitz, Joseph J Chen, Eliot L Siegel, Adele P Peskin, Diana N. Zeiger
Abstract: We have characterized a commercially-available polyurethane foam which is marketed for modeling parts in the aircraft, automotive, and related industries. We find that the foam may be suitable for use as a density reference standard in the range bel ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842519



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