Dr. George P. Eppeldauer Profile

Dr. George P. Eppeldauer

Electronics Engineer at National Institute of Standards and Technology

SPIE Involvement:

Author | Instructor

Publications (38)

Proceedings Article | 7 March 2022 Presentation

A portable light detector for measuring in-vivo bioluminescent activity

Sergey Polyakov, George Eppeldauer, Aleksey Yevtodiyenko, Arkadiy Bazhin, Pavlo Khodakivskyi, Aurelien Godinat, Ghyslain Budin, Tamara Maric, Giorgio Pietramaggiori, Sandra Scherer, Marina Kunchulia, Kevin Francis, Jeffrey Bryan, Elena Goun

Proceedings Volume PC11950, PC1195007 (2022) https://doi.org/10.1117/12.2609941

KEYWORDS: Sensors, In vivo imaging, Photons, Photodiodes, Amplifiers, Silicon, Photovoltaics, Imaging systems, Cameras, Animal model studies

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Proceedings Article | 2 May 2019 Paper

Improvements in the design of thermal-infrared radiation thermometers and sensors

Howard Yoon, Vladimir Khromchenko, George Eppeldauer

Proceedings Volume 11004, 1100408 (2019) https://doi.org/10.1117/12.2519506

KEYWORDS: Temperature metrology, Sensors, Black bodies, Calibration, Thermography, Optical design, Infrared radiation, Pyroelectric detectors, Signal detection, Optical components

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Proceedings Article | 6 September 2017 Presentation + Paper

Low-NEP pyroelectric detectors for calibration of UV and IR sources and detectors

G. Eppeldauer, V. Podobedov, L. Hanssen, C. Cooksey

Proceedings Volume 10378, 1037809 (2017) https://doi.org/10.1117/12.2272582

KEYWORDS: Sensors, Calibration, Light emitting diodes, Pyroelectric detectors, Ultraviolet radiation, Infrared sensors, Spectral calibration, Solid state lighting

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Proceedings Article | 11 May 2017 Presentation + Paper

UV scale calibration transfer from an improved pyroelectric detector standard to field UV-A meters and 365 nm excitation sources

G. Eppeldauer, V. Podobedov, C. Cooksey

Proceedings Volume 10181, 101810W (2017) https://doi.org/10.1117/12.2263093

KEYWORDS: Standards development, Sensors, Nondestructive evaluation, Silicon, Ultraviolet radiation, Calibration, Ultraviolet sources, Radiometry, Light emitting diodes, Ultraviolet light emitting diodes, Pyroelectric detectors

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Proceedings Article | 7 September 2016 Paper

Broadband radiometric LED measurements

G. Eppeldauer, C. Cooksey, H. Yoon, L. Hanssen, V. Podobedov, R. Vest, U. Arp, C. Miller

Proceedings Volume 9954, 99540J (2016) https://doi.org/10.1117/12.2237033

KEYWORDS: Ultraviolet radiation, Light emitting diodes, Calibration, Radiometry, Sensors, Pyroelectric detectors, Blue light emitting diodes, Silicon, Standards development, Optical filters

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Proceedings Article | 20 May 2016 Paper

Calibration of spectral responsivity of IR detectors in the range from 0.6 µm to 24 µm

Vyacheslav Podobedov, George Eppeldauer, Leonard Hanssen, Thomas Larason

Proceedings Volume 9819, 98190P (2016) https://doi.org/10.1117/12.2228384

KEYWORDS: Calibration, Infrared detectors, Reflectivity, Spectral calibration, Sensors, Pyroelectric detectors, Radiometry, Monochromators, Optical spheres, Mirrors

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Proceedings Article | 8 September 2015 Paper

Standardization of UV LED measurements

G. Eppeldauer, T. Larason, H. Yoon

Proceedings Volume 9571, 957105 (2015) https://doi.org/10.1117/12.2189714

KEYWORDS: Light emitting diodes, Ultraviolet radiation, Calibration, Lamps, Sensors, Free electron lasers, Ultraviolet light emitting diodes, Optical filters, Standards development, Ultraviolet sources

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Proceedings Article | 12 May 2015 Paper

New night vision goggle gain definition

Vyacheslav Podobedov, George Eppeldauer, Thomas Larason

Proceedings Volume 9452, 945214 (2015) https://doi.org/10.1117/12.2176344

KEYWORDS: Light emitting diodes, Calibration, Radiometry, Night vision goggles, Eye, Night vision, Black bodies, Optical spheres, Goggles, Data modeling

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Proceedings Article | 9 June 2014 Paper

NIST traceable measurements of radiance and luminance levels of night-vision-goggle test-instruments

G. Eppeldauer, V. Podobedov

Proceedings Volume 9071, 90710Q (2014) https://doi.org/10.1117/12.2050525

KEYWORDS: Calibration, Sensors, Optical filters, Light emitting diodes, Radiometry, Silicon, Optical spheres, Green light emitting diodes, Instrumentation engineering, Photodiodes

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Proceedings Article | 5 June 2013 Paper

Evaluation of dome-input geometry for pyroelectric detectors

J. Zeng, L. Hanssen, G. Eppeldauer

Proceedings Volume 8706, 87060B (2013) https://doi.org/10.1117/12.2016261

KEYWORDS: Radiometry, Domes, Sensors, Reflectivity, Calibration, Pyroelectric detectors, Near infrared, Optical coatings, Infrared radiation, Mirrors

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Proceedings Article | 18 December 2012 Paper

Evaluation of optical radiation detectors in the range from 0.8 μm to 20 μm at the NIST infrared spectral calibration facility

Vyacheslav Podobedov, George Eppeldauer, Thomas Larason

Proceedings Volume 8550, 855029 (2012) https://doi.org/10.1117/12.980937

KEYWORDS: Sensors, Calibration, Monochromators, Spectral calibration, Infrared sensors, Diffraction gratings, Infrared detectors, Pyroelectric detectors, Infrared radiation, Signal detection

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Proceedings Article | 18 May 2012 Paper

PV-MCT working standard radiometer

George Eppeldauer, V. Podobedov

Proceedings Volume 8355, 835505 (2012) https://doi.org/10.1117/12.918599

KEYWORDS: Sensors, Radiometry, Amplifiers, Photodiodes, Interference (communication), Resistance, Signal to noise ratio, Calibration, Standards development, Optical amplifiers

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Proceedings Article | 18 May 2012 Paper

Spectral responsivity calibrations of two types of pyroelectric radiometers using three different methods

J. Zeng, G. Eppeldauer, L. Hanssen, V. Podobedov

Proceedings Volume 8355, 835503 (2012) https://doi.org/10.1117/12.919538

KEYWORDS: Radiometry, Calibration, Sensors, Reflectivity, Spectral calibration, Coating, Domes, Optical filters, Spectroscopy, Spectral resolution

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Proceedings Article | 19 May 2011 Paper

Increased responsivity pyroelectric radiometer with dome input and temperature control

George Eppeldauer, Jinan Zeng, Leonard Hanssen

Proceedings Volume 8014, 801419 (2011) https://doi.org/10.1117/12.883430

KEYWORDS: Radiometry, Sensors, Standards development, Calibration, Infrared radiation, Domes, Resistors, Capacitance, Prototyping, Spectral calibration

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Proceedings Article | 2 September 2009 Paper

Spectral irradiance responsivity calibration of InSb radiometers using the improved IR-SIRCUS at NIST

Jinan Zeng, Howard Yoon, George Eppeldauer, Leonard Hanssen, Joseph Rice

Proceedings Volume 7453, 74530N (2009) https://doi.org/10.1117/12.828699

KEYWORDS: Radiometry, Calibration, Integrating spheres, Sensors, Spectral calibration, Speckle, Optical parametric oscillators, Optical filters, Optical spheres, Tunable lasers

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Proceedings Article | 21 August 2009 Paper

The extension of the NIST BRDF scale from 1100 nm to 2500 nm

Howard Yoon, David Allen, George Eppeldauer, Benjamin Tsai

Proceedings Volume 7452, 745204 (2009) https://doi.org/10.1117/12.827293

KEYWORDS: Reflectivity, Radiometry, Sensors, Calibration, Monochromators, Radio optics, Polarization, Infrared radiation, Indium gallium arsenide, Lamps

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Proceedings Article | 15 May 2008 Paper

Infrared collimator calibrations using regular glass optics and short-wave infrared detectors

Howard Yoon, George Eppeldauer, Vladimir Khromchenko

Proceedings Volume 6940, 694038 (2008) https://doi.org/10.1117/12.783771

KEYWORDS: Sensors, Collimators, Infrared radiation, Calibration, Infrared detectors, Short wave infrared radiation, Thermography, Black bodies, Glasses, Optical filters

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Proceedings Article | 1 May 2008 Paper

Low NEP pyroelectric radiometer standards

G. Eppeldauer, J. Zeng, H. Yoon

Proceedings Volume 6940, 694036 (2008) https://doi.org/10.1117/12.776940

KEYWORDS: Sensors, Pyroelectric detectors, Monochromators, Signal detection, Signal to noise ratio, Radiometry, Calibration, Infrared radiation, Temperature metrology, Standards development

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Proceedings Article | 8 October 2007 Paper

Uniform calibration of night vision goggles and test sets

George Eppeldauer

Proceedings Volume 6737, 67370M (2007) https://doi.org/10.1117/12.737814

KEYWORDS: Goggles, Calibration, Radiometry, Light emitting diodes, Radio optics, Sensors, Standards development, Silicon, Photodiodes, Night vision

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Proceedings Article | 14 May 2007 Paper

Short-wave infrared radiometers design and characterizations

George Eppeldauer, Howard Yoon

Proceedings Volume 6542, 65420O (2007) https://doi.org/10.1117/12.720548

KEYWORDS: Sensors, Radiometry, Resistance, Silicon, Calibration, Head, Resistors, Infrared radiation, Short wave infrared radiation, Thermography

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Proceedings Article | 8 September 2006 Paper

Performance comparisons of InGaAs, extended InGaAs, and short-wave HgCdTe detectors between 1 µm and 2.5 µm

Howard Yoon, Matt Dopkiss, George Eppeldauer

Proceedings Volume 6297, 629703 (2006) https://doi.org/10.1117/12.684614

KEYWORDS: Sensors, Indium gallium arsenide, Diodes, Resistance, Photodiodes, Temperature metrology, Infrared sensors, Monochromators, Infrared detectors, Mercury cadmium telluride

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Proceedings Article | 10 May 2006 Paper

Development and calibration of pyroelectric radiometer standards at NIST

G. Eppeldauer, J. Zeng, L. Hanssen

Proceedings Volume 6201, 620119 (2006) https://doi.org/10.1117/12.665997

KEYWORDS: Radiometry, Sensors, Calibration, Reflectivity, Standards development, Pyroelectric detectors, Infrared radiation, Domes, Temperature metrology, Signal detection

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SPIE Journal Paper | 1 November 2005

LED-based spectrally tunable source for radiometric, photometric, and colorimetric applications

Irena Fryc, Steven Brown, George Eppeldauer, Yoshihiro Ohno

OE, Vol. 44, Issue 11, 111309, (November 2005) https://doi.org/10.1117/12.10.1117/1.2127952

KEYWORDS: Light emitting diodes, Calibration, LCDs, Photometry, Light sources, Lamps, Optical engineering, CRTs, Optimization (mathematics), Detection and tracking algorithms

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Proceedings Article | 4 November 2004 Paper

Spectral irradiance responsivity measurements between 1 µm and 5 µm

George Eppeldauer, Joseph Rice, Jun Zhang, Keith Lykke

Proceedings Volume 5543, (2004) https://doi.org/10.1117/12.559939

KEYWORDS: Radiometry, Calibration, Photodiodes, Sensors, Infrared radiation, Bolometers, Optical spheres, Standards development, Cryogenics, Resistance

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Proceedings Article | 26 October 2004 Paper

Spectral Irradiance and Radiance responsivity Calibrations using Uniform Sources (SIRCUS) facility at NIST

Steven Brown, George Eppeldauer, Joseph Rice, Jun Zhang, Keith Lykke

Proceedings Volume 5542, (2004) https://doi.org/10.1117/12.559577

KEYWORDS: Calibration, Sensors, Radiometry, Optical spheres, Standards development, Integrating spheres, Spectrographs, Sun, Photometry, Satellites

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Proceedings Article | 20 October 2004 Paper

A spectrally tunable solid-state source for radiometric, photometric, and colorimetric applications

Irena Fryc, Steven Brown, George Eppeldauer, Yoshihiro Ohno

Proceedings Volume 5530, (2004) https://doi.org/10.1117/12.565053

KEYWORDS: Light emitting diodes, Calibration, LCDs, Photometry, Lamps, Light sources, CRTs, Detection and tracking algorithms, Optimization (mathematics), Integrating spheres

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Proceedings Article | 10 November 2003 Paper

Calibration and characterization of trap detector filter radiometers

David Allen, George Eppeldauer, Steven Brown, Edward Early, B. Carol Johnson, Keith Lykke

Proceedings Volume 5151, (2003) https://doi.org/10.1117/12.507995

KEYWORDS: Radiometry, Sensors, Calibration, Optical filters, Lamps, Silicon, Remote sensing, Integrating spheres, Radio optics, Photodiodes

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Proceedings Article | 18 December 2002 Paper

Spectral responsivity determination of a transfer-standard pyroelectric radiometer

George Eppeldauer, Miklos Racz, Leonard Hanssen

Proceedings Volume 4818, (2002) https://doi.org/10.1117/12.450561

KEYWORDS: Reflectivity, Sensors, Radiometry, Pyroelectric detectors, Calibration, Coating, Ultraviolet radiation, Spectrophotometry, Infrared radiation, Fourier transforms

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Proceedings Article | 6 June 2002 Paper

A reference tristimulus colorimeter

George Eppeldauer

Proceedings Volume 4421, (2002) https://doi.org/10.1117/12.464724

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Proceedings Article | 15 May 2001 Paper

Absolute radiometric calibration of digital imaging systems

Steven Brown, Thomas Larason, Catherine Habauzit, George Eppeldauer, Yoshihiro Ohno, Keith Lykke

Proceedings Volume 4306, (2001) https://doi.org/10.1117/12.426952

KEYWORDS: Calibration, Charge-coupled devices, CCD cameras, Sensors, Cameras, Optical spheres, Microscopes, Imaging systems, Spectrographs, Digital imaging

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Proceedings Article | 19 July 1999 Paper

Improved accuracy tristimulus colorimeters calibrated with standard detectors

George Eppeldauer

Proceedings Volume 3749, (1999) https://doi.org/10.1117/12.354857

KEYWORDS: Calibration, Receivers, Sensors, Standards development, Light sources, Lamps, Colorimetry, Optical testing, Silicon, Photodiodes

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Proceedings Article | 19 August 1998 Paper

Optical characterization of diffuser-input standard irradiance meters

George Eppeldauer, Miklos Racz, Thomas Larason

Proceedings Volume 3573, (1998) https://doi.org/10.1117/12.321015

KEYWORDS: Diffusers, Sensors, Indium gallium arsenide, Silicon, Photodiodes, Standards development, Calibration, Glasses, Reflectivity, Spectral calibration

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Proceedings Article | 13 August 1997 Paper

Electronic characteristics of Ge and InGaAs radiometers

George Eppeldauer

Proceedings Volume 3061, (1997) https://doi.org/10.1117/12.280403

KEYWORDS: Radiometry, Indium gallium arsenide, Germanium, Photodiodes, Resistance, Temperature metrology, Resistors, Near infrared, Radio optics, Interference (communication)

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Proceedings Article | 8 November 1996 Paper

Near-infrared radiometer standards

George Eppeldauer

Proceedings Volume 2815, (1996) https://doi.org/10.1117/12.257155

KEYWORDS: Sensors, Photodiodes, Calibration, Radiometry, Near infrared, Indium gallium arsenide, Germanium, Optical spheres, Diffusers, Radio optics

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Proceedings Article | 26 September 1995 Paper

Absolute response calibration of a transfer standard cryogenic bolometer

George Eppeldauer, Alan Migdall, Thomas Gentile, Christopher Cromer

Proceedings Volume 2550, (1995) https://doi.org/10.1117/12.221416

KEYWORDS: Bolometers, Calibration, Sensors, Cryogenics, Pyroelectric detectors, Reflectivity, Silicon, Transmittance, Infrared detectors, Standards development

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Proceedings Article | 23 June 1994 Paper

Infrared detector spectral responsivity calibration facility at the National Institute of Standards and Technology (NIST)

Alan Migdall, George Eppeldauer, Christopher Cromer

Proceedings Volume 2227, (1994) https://doi.org/10.1117/12.178614

KEYWORDS: Calibration, Standards development, Bolometers, Infrared detectors, Spectral calibration, Sensors, Infrared bolometers, Cryogenics, Thermography, Infrared spectroscopy

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Proceedings Article | 21 September 1992 Paper

Luminous intensity measurements of sources using a new detector-based illuminance scale

George Eppeldauer, Christopher Cromer, Jonathan Hardis

Proceedings Volume 1687, (1992) https://doi.org/10.1117/12.137870

KEYWORDS: Photometry, Calibration, Lamps, Sensors, Light emitting diodes, Photodiodes, Light sources, Silicon, Radiometry, Optical filters

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Proceedings Article | 1 August 1991 Paper

Temperature-monitored/controlled silicon photodiodes for standardization

George Eppeldauer

Proceedings Volume 1479, (1991) https://doi.org/10.1117/12.44520

KEYWORDS: Sensors, Photodiodes, Temperature metrology, Silicon, Copper, Calibration, Photometry, Thermoelectric materials, Radiometry, Temperature sensors

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Showing 5 of 38 publications

Course Instructor

SC1109: Infrared Radiometric Calibration

This course describes the radiometric calibration techniques used for SI-traceable measurements of sources, detectors and material properties in the infrared wavelength region. The main goal is to enable understanding of infrared measurements with quantified uncertainties so that full uncertainty budgets can be established for the final quantities. Examples from NIST calibrations of sources, detectors and materials will be described. The properties and measurements of various different blackbody and lamp sources will be discussed. Detector calibrations using both thermal and quantum detectors with monochromators and Fourier-transform spectrometers will be covered. Also, infrared reflectance measurements using Fourier-transform spectrometers will be explained. Examples of NIST-developed infrared transfer and working standard radiometers in field deployments will be utilized to illustrate the above concepts.

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