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Author: zachary levine
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1. Polarization-Entangled Photon Pairs From Periodically-Poled Crystalline Waveguides Over a Range of
Journal of Research (NIST JRES)
Zachary H Levine, Dylan A. Heberle
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 ...
2. An algorithm for finding clusters with a known distribution and its application to photon-number resolution using a superconducting transition-edge sensor
Zachary H Levine, Thomas Gerrits, Alan L Migdall, Daniel Victor Samarov, Brice Robert Calkins, Adriana Eleni Lita, Sae Woo Nam
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 ...
3. Uncertainty in RECIST as a measure of volume for lung nodules and liver malignoma
Zachary H Levine, Adam L Pintar, John G Hagedorn, Charles D. Fenimore, Claus P. Heussel
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 ...
4. Tumor volume measurement errors RECIST studied with realistic tumor models
Journal of Research (NIST JRES)
Benjamin R. Galloway, Adele P Peskin, Zachary H Levine
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 ...
5. Frequency-bin Entangled Comb of Photon Pairs From a Silicon-on-Insulator Micro-Resonator
Jun Chen, Zachary H Levine, Jingyun Fan, Alan L Migdall
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 ...
6. Heralded, pure-state single-photon source based
on a Potassium Titanyl Phosphate waveguide
Zachary H Levine, Jingyun Fan, Jun Chen, Alexander E. Ling, Alan L Migdall
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 ...
7. Design considerations for a cascaded grating interferometer suitable for EUV interference lithography
Zachary H Levine, Thomas B Lucatorto, Steven Grantham
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 ...
8. A Low-Cost Density Reference Phantom for Computed Tomography
Zachary H Levine, Ming-Dong Li, Anthony P Reeves, David F Yankelevitz, Joseph J Chen, Eliot L Siegel, Adele P Peskin, Diana N. Zeiger
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 ...
9. A Low Cost Fiducial Reference for Computed Tomography
Zachary H Levine, Steven Grantham, Daniel S Sawyer, Anthony P Reeves, David F Yankelevitz
Rationale and Objectives. To detect the growth in lesions, it is necessary to ensure that the apparent changes in size are above the noise floor of the system. By introducing a fiducial reference, it may be possible to detect smaller changes in le ...
10. Diffraction and Electron Energy Loss to Plasmons in Silicon Slabs
Zachary H Levine
Dynamic diffraction patterns have been calculated for 25-nm thick slabs of silicon with , , and  faces for a 120 keV electron beam. The calculation used the mixed dynamical form factor in the dielectric formulation. Dielectric matric ...