Ms. Elizabeth A. Tanner Profile

Elizabeth A. Tanner

Optical Engineer at Digital Fusion Inc

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Publications (5)

Proceedings Article | 27 April 2010 Paper

Infrared/terahertz double resonance for chemical remote sensing: signatures and performance predictions

Dane Phillips, Elizabeth Tanner, Henry Everitt, Ivan Medvedev, Christopher Neese, Jennifer Holt, Frank De Lucia

Proceedings Volume 7671, 76710F (2010) https://doi.org/10.1117/12.853309

KEYWORDS: Terahertz radiation, Molecules, Absorption, Carbon dioxide lasers, Infrared spectroscopy, Spectroscopy, Remote sensing, Atmospheric sensing, Infrared radiation, Infrared signatures

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Proceedings Article | 30 April 2009 Paper

Photonic crystal slab and waveguide design for biological detection

Elizabeth Tanner, Juronica Arch, Anne-Marie Dorsett, Derek Strembicke, Milan Buncick, Jian Han, Scott Retterer, Darrell Thomas

Proceedings Volume 7322, 73220B (2009) https://doi.org/10.1117/12.818644

KEYWORDS: Photonic crystals, Waveguides, Microfluidics, Silicon, Etching, Silica, Cameras, Pathogens, Dielectrics, Semiconducting wafers

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Proceedings Article | 19 May 2005 Paper

Statistical analysis and ground-based testing of the on-orbit Space Shuttle damage detection sensors

Brian Miles, Elizabeth Tanner, John Carter, Gary Kamerman, Robert Schwartz

Proceedings Volume 5791, (2005) https://doi.org/10.1117/12.609688

KEYWORDS: Statistical analysis, Sensors, Image analysis, Palladium, LIDAR, Image sensors, Error analysis, Damage detection, Light sources and illumination, Imaging systems

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The loss of Space Shuttle Columbia and her crew led to the creation of the Columbia Accident Investigation Board (CAIB), which concluded that a piece of external fuel tank insulating foam impacted the Shuttle’s wing leading edge. The foam created a hole in the reinforced carbon/carbon (RCC) insulating material which gravely compromised the Shuttle’s thermal protection system (TPS). In response to the CAIB recommendation, the upcoming Return to Flight Shuttle Mission (STS-114) NASA will include a Shuttle deployed sensor suite which, among other sensors, will include two laser sensing systems, Sandia National Lab’s Laser Dynamic Range Imager (LDRI) and Neptec’s Laser Camera System (LCS) to collect 3-D imagery of the Shuttle’s exterior. Herein is described a ground-based statistical testing procedure that will be used by NASA as part of a damage detection performance assessment studying the performance of each of the two laser radar systems in detecting and identifying impact damage to the Shuttle. A statistical framework based on binomial and Bayesian statistics is used to describe the probability of detection and associated statistical confidence. A mock-up of a section of Shuttle wing RCC with interchangeable panels includes a random pattern of 1/4” and 1” diameter holes on the simulated RCC panels and is cataloged prior to double-blind testing. A team of ladar sensor operators will acquire laser radar imagery of the wing mock-up using a robotic platform in a laboratory at Johnson Space Center to execute linear image scans of the wing mock-up. The test matrix will vary robotic platform motion to simulate boom wobble and alter lighting and background conditions at the 6.5 foot and 10 foot sensor-wing stand-off distances to be used on orbit. A separate team of image analysts will process and review the data and characterize and record the damage that is found. A suite of software programs has been developed to support hole location definition, damage disposition recording, statistical data analysis and results presentation. The result of the statistical analysis will provide a quantitative indication of the laboratory performance of the ladar systems in the role of through hole damage detection.

Proceedings Article | 21 August 2003 Paper

Autonomous rendezvous and docking sensor suite

Elizabeth Tanner, Stephen Granade, Charles Whitehead

Proceedings Volume 5086, (2003) https://doi.org/10.1117/12.487345

KEYWORDS: Sensors, Retroreflectors, Imaging systems, Space operations, Reflectors, Target detection, Prototyping, Adaptive optics, Signal detection, Optical filters

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Proceedings Article | 3 May 2000 Paper

Mueller matrix imaging polarimetry in dermatology

Matthew Smith, Paul Burke, Arthur Lompado, Elizabeth Tanner, Lloyd Hillman

Proceedings Volume 3911, (2000) https://doi.org/10.1117/12.384904

KEYWORDS: Polarimetry, Polarization, Tissues, Skin, Dermatology, Linear polarizers, Wave plates, Light scattering, Collimation, Sensors

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