Mr. Daniel V. Hahn Profile

Daniel V. Hahn

Engineer at Johns Hopkins Univ

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Author

Publications (17)

Proceedings Article | 13 May 2019 Paper

Angle dependent scatter in CVD ZnSe and single crystal CaF2 from the infrared through the NIR

M. Airola, M. Thomas, J. Ma, D. Hahn, K. Hibbitts, D. Blaney

Proceedings Volume 10985, 1098504 (2019) https://doi.org/10.1117/12.2519457

KEYWORDS: Chemical vapor deposition, Ultraviolet radiation, Crystals, Infrared radiation, Scatter measurement, Absorption, Visible radiation, Data modeling, Surface finishing, Mid-IR

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Proceedings Article | 5 September 2014 Paper

Temperature dependent BRDF facility

Marc Airola, Andrea Brown, Daniel Hahn, Michael Thomas, Elizabeth Congdon, Douglas Mehoke

Proceedings Volume 9205, 920503 (2014) https://doi.org/10.1117/12.2062838

KEYWORDS: Bidirectional reflectance transmission function, Temperature metrology, Long wavelength infrared, Reflectivity, Ceramics, Scattering, Statistical modeling, Carbon dioxide lasers, Ultraviolet radiation, Solids

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Proceedings Article | 10 September 2010 Paper

A general BRDF/BSDF model including out-of-plane dependence

M. Thomas, R. Joseph, W. Tropf, A. Brown

Proceedings Volume 7792, 77920I (2010) https://doi.org/10.1117/12.861046

KEYWORDS: Reflectivity, Silicon, Bidirectional reflectance transmission function, Transmittance, Reflection, Light scattering, Data modeling, Absorption, Diffuse reflectance spectroscopy, Monte Carlo methods

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Proceedings Article | 2 September 2010 Paper

Optical material characterization through BSDF measurement and analysis

Andrea Brown, Daniel Hahn, Michael Thomas, David Brown, Jessica Makowski

Proceedings Volume 7792, 779211 (2010) https://doi.org/10.1117/12.861499

KEYWORDS: Bidirectional reflectance transmission function, Reflectivity, Scattering, Sensors, Reflection, Visible radiation, Applied physics, Scatter measurement, Metals, Transmittance

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Proceedings Article | 29 April 2010 Paper

Prototype fiber optic imaging system for aerospace applications

L. Gauthier, D. Hahn, M. Harold, J. Meyer

Proceedings Volume 7675, 767505 (2010) https://doi.org/10.1117/12.850417

KEYWORDS: Cameras, Imaging systems, Prototyping, Fiber optics, Endoscopes, Aerospace engineering, Sensors, Video, Situational awareness sensors, Rockets

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Proceedings Article | 28 April 2009 Paper

Optical properties of polycrystalline Nd:YAG for different levels of Nd doping

Ryan Springer, Michael Thomas, Daniel Hahn, Frank Narducci

Proceedings Volume 7302, 730212 (2009) https://doi.org/10.1117/12.817477

KEYWORDS: Nd:YAG lasers, Doping, Neodymium, Transmittance, Solids, Sensors, YAG lasers, Data modeling, Absorption, Bidirectional reflectance transmission function

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Proceedings Article | 21 April 2008 Paper

Shape characteristics of biological spores

Daniel Hahn, Diane Limsui, Richard Joseph, Kevin Baldwin, Nathan Boggs, Alison Carr, Christopher Carter, Timothy Han, Michael Thomas

Proceedings Volume 6954, 69540W (2008) https://doi.org/10.1117/12.777637

KEYWORDS: Particles, Backscatter, Scattering, Atmospheric particles, Aerosols, Shape analysis, Computer simulations, Refraction, Numerical simulations, Optical spheres

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Proceedings Article | 21 April 2008 Paper

Extinction and backscatter cross sections of biological materials

M. Thomas, D. Hahn, A. Carr, D. Limsui, C. Carter, N. Boggs, J. Jackman

Proceedings Volume 6954, 69540Y (2008) https://doi.org/10.1117/12.777650

KEYWORDS: Refractive index, Atmospheric modeling, Data modeling, Aerosols, Backscatter, Silica, Oscillators, Thin films, Refraction, Ultraviolet radiation

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Proceedings Article | 26 January 2006 Paper

Digital Hammurabi: design and development of a 3D scanner for cuneiform tablets

Daniel Hahn, Donald Duncan, Kevin Baldwin, Jonathon Cohen, Budirijanto Purnomo

Proceedings Volume 6056, 60560E (2006) https://doi.org/10.1117/12.641219

KEYWORDS: Tablets, 3D modeling, Photography, Scanners, Cameras, 3D scanning, Reflectivity, Light sources and illumination, Projection systems, Structured light

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Proceedings Article | 18 May 2005 Paper

Optical characterization of AlON and spinel

D. Blodgett, D. Hahn, M. Thomas

Proceedings Volume 5786, (2005) https://doi.org/10.1117/12.608985

KEYWORDS: Bidirectional reflectance transmission function, Absorption, Transmittance, Spinel, Mid-IR, Sensors, Sapphire, Optical properties, Temperature metrology, Polishing

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Proceedings Article | 20 October 2004 Paper

Optimized link model for optical communications through clouds

Daniel Hahn, Donald Duncan

Proceedings Volume 5550, (2004) https://doi.org/10.1117/12.549647

KEYWORDS: Clouds, Receivers, Atmospheric modeling, Optical communications, Data modeling, Scattering, Telecommunications, Avalanche photodetectors, Transmitters, Databases

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Proceedings Article | 14 November 2003 Paper

Analysis and representation of BSDF and BRDF measurements

Michael Thomas, David Blodgett, Daniel Hahn

Proceedings Volume 5192, (2003) https://doi.org/10.1117/12.508560

KEYWORDS: Bidirectional reflectance transmission function, Data modeling, Sensors, Reflectivity, Reflection, Solids, Opacity, Optical fibers, Integration, Signal detection

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Proceedings Article | 14 November 2003 Paper

Physics-based polarimetric BRDF models

Donald Duncan, Daniel Hahn, Michael Thomas

Proceedings Volume 5192, (2003) https://doi.org/10.1117/12.507317

KEYWORDS: Bidirectional reflectance transmission function, Data modeling, Scattering, Photons, Polarimetry, Polarization, Correlation function, Light scattering, Refractive index, Statistical analysis

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Proceedings Article | 26 September 2003 Paper

Characterization and modeling of the infrared properties of GaP and GaAs

Michael Thomas, David Blodgett, Daniel Hahn, Simon Kaplan

Proceedings Volume 5078, (2003) https://doi.org/10.1117/12.487878

KEYWORDS: Absorption, Gallium arsenide, Transmittance, Data modeling, Temperature metrology, Infrared radiation, Spectroscopy, Thermal modeling, Sensors, Solids

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Proceedings Article | 26 September 2003 Paper

Longwave infrared absorption properties of ZnS and ZnSe

David Blodgett, Michael Thomas, Daniel Hahn, Simon Kaplan

Proceedings Volume 5078, (2003) https://doi.org/10.1117/12.487874

KEYWORDS: Zinc, Absorption, Infrared radiation, Transmittance, Data modeling, Solids, Long wavelength infrared, Spectroscopy, Temperature metrology, Thermal modeling

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Proceedings Article | 26 September 2003 Paper

Characterization and modeling of the infrared properties of diamond and SiC

Daniel Hahn, Michael Thomas, David Blodgett, Simon Kaplan

Proceedings Volume 5078, (2003) https://doi.org/10.1117/12.487875

KEYWORDS: Diamond, Absorption, Silicon carbide, Chemical vapor deposition, Data modeling, Transmittance, Infrared radiation, Temperature metrology, Thermal modeling, Infrared materials

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Proceedings Article | 9 December 2002 Paper

Link availability model for optical communication through clouds

Daniel Hahn, Clinton Edwards, Donald Duncan

Proceedings Volume 4821, (2002) https://doi.org/10.1117/12.450995

KEYWORDS: Clouds, Data modeling, Optical communications, Particles, Receivers, Databases, Absorption, Refractive index, Water, Data communications

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Showing 5 of 17 publications

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