Dr. Sergey N. Mekhontsev Profile

Dr. Sergey N. Mekhontsev

Researcher at National Institute of Standards and Technology

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Author

Publications (16)

Proceedings Article | 20 August 2020 Presentation + Paper

High temperature reflectometer for spatially resolved spectral directional emissivity of laser powder bed fusion processes

David Deisenroth, Leonard Hanssen, Sergey Mekhontsev

Proceedings Volume 11485, 114850K (2020) https://doi.org/10.1117/12.2568179

KEYWORDS: Reflectometry, Reflectivity, Imaging systems, Light emitting diodes, Point spread functions, Deconvolution, Staring arrays, Stray light, Signal attenuation

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Proceedings Article | 2 March 2020 Paper

Measurement of mass loss, absorbed energy, and time-resolved reflected power for laser powder bed fusion

David Deisenroth, Sergey Mekhontsev, Brandon Lane

Proceedings Volume 11271, 112710L (2020) https://doi.org/10.1117/12.2547491

KEYWORDS: Energy transfer, Absorption, Reflectometry, Laser energy, Metals, Liquids, Laser welding, Reflection, Calorimetry

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Proceedings Article | 14 May 2018 Presentation

Establishing traceable radiation thermometry with in-line imaging system at the NIST AMMT facility (Conference Presentation)

Ivan Zhirnov, Vladimir Khromchenko, Brandon Lane, Steven Grantham, Sergey Mekhontsev

Proceedings Volume 10661, 106610C (2018) https://doi.org/10.1117/12.2305002

KEYWORDS: Imaging systems, Radiation thermometry, Temperature metrology, Calibration, Additive manufacturing, Metrology, Stray light, System integration, Pyrometry, Black bodies

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Proceedings Article | 9 May 2016 Paper

Optical design and initial results from NIST's AMMT/TEMPS facility

Steven Grantham, Brandon Lane, Jorge Neira, Sergey Mekhontsev, Mihaela Vlasea, Leonard Hanssen

Proceedings Volume 9738, 97380S (2016) https://doi.org/10.1117/12.2214246

KEYWORDS: Additive manufacturing, Laser processing, Process control, Optical design, Radiometry, Temperature metrology, Feedback control, Mirrors, Beam splitters, Fiber lasers, Imaging systems, Reflectivity, Sensors, Image processing, Optical scanning

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Proceedings Article | 21 September 2007 Paper

Tunable filter comparator for spectral calibration of near-ambient temperature blackbodies

V. Khromchenko, S. Mekhontsev, L. Hanssen

Proceedings Volume 6678, 66781E (2007) https://doi.org/10.1117/12.735890

KEYWORDS: Black bodies, Temperature metrology, Thermography, Calibration, Infrared imaging, Infrared radiation, Radiometry, Mirrors, Sensors, Tunable filters

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Proceedings Article | 18 April 2006 Paper

IR spectral characterization of customer blackbody sources: first calibration results

S. Mekhontsev, M. Noorma, A. Prokhorov, L. Hanssen

Proceedings Volume 6205, 620503 (2006) https://doi.org/10.1117/12.667523

KEYWORDS: Black bodies, Temperature metrology, Pyrometry, Cesium, Calibration, FT-IR spectroscopy, Infrared radiation, Sodium, Spectrometers, Zinc

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Proceedings Article | 18 April 2006 Paper

Water heat pipe blackbody as a reference spectral radiance source between 50°C and 250°C

M. Noorma, S. Mekhontsev, V. Khromchenko, M. Litorja, C. Cagran, J. Zeng, L. Hanssen

Proceedings Volume 6205, 620502 (2006) https://doi.org/10.1117/12.667257

KEYWORDS: Black bodies, Temperature metrology, Calibration, Reflectivity, Infrared radiation, Standards development, Gas lasers, Pyrometry, Aluminum, Thermography

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Proceedings Article | 18 April 2006 Paper

Radiation properties of IR calibrators with V-grooved surfaces

Alexander Prokhorov, Leonard Hanssen, Sergey Mekhontsev

Proceedings Volume 6205, 620505 (2006) https://doi.org/10.1117/12.667557

KEYWORDS: Reflection, Reflectivity, Data modeling, Calibration, Black bodies, Infrared radiation, Sensors, Radiometry, Numerical modeling, Monte Carlo methods

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Proceedings Article | 18 April 2006 Paper

Design and characterization of Si and InGaAs pyrometers for radiance temperature scale realization between 232 °C and 962 °C

M. Noorma, S. Mekhontsev, V. Khromchenko, A. Gura, M. Litorja, B. Tsai, L. Hanssen

Proceedings Volume 6205, 620501 (2006) https://doi.org/10.1117/12.667253

KEYWORDS: Temperature metrology, Calibration, Pyrometry, Silver, Zinc, Tin, Black bodies, Radiometry, Silicon, Indium gallium arsenide

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Proceedings Article | 12 April 2004 Paper

Infrared spectral emissivity characterization facility at NIST

Leonard Hanssen, Sergey Mekhontsev, Vladimir Khromchenko

Proceedings Volume 5405, (2004) https://doi.org/10.1117/12.542224

KEYWORDS: Black bodies, Temperature metrology, Mirrors, Reflectometry, Optical spheres, Radiometry, Fourier transforms, Integrating spheres, Infrared radiation, Spectrometers

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Proceedings Article | 14 November 2003 Paper

Analytical evaluation and correction of port loss error in integrating sphere reflectometers

Alexander Prokhorov, Sergey Mekhontsev, Leonard Hanssen

Proceedings Volume 5192, (2003) https://doi.org/10.1117/12.508326

KEYWORDS: Reflectivity, Optical spheres, Bidirectional reflectance transmission function, Error analysis, Integrating spheres, Solids, Reflectometry, High dynamic range imaging, Sensors, Statistical modeling

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Proceedings Article | 18 November 1998 Paper

Precision large-area low- and medium-temperature blackbody sources

Victor Sapritsky, Sergei Mekhontsev, Alexander Prokhorov, Konstantin Sudarev, Vladimir Khromchenko, Mikhail Samoilov

Proceedings Volume 3437, (1998) https://doi.org/10.1117/12.331338

KEYWORDS: Black bodies, Temperature metrology, Solar concentrators, Nitrogen, Calibration, Liquids, Reflectors, Reflectivity, Monte Carlo methods, Mirrors

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Proceedings Article | 11 August 1998 Paper

Modeling, design, and characterization of medium-background blackbodies for full-aperture calibration of spaceborne infrared systems and imagers

Sergei Mekhontsev, Victor Sapritsky, Alexander Prokhorov, Vladimir Khromchenko, Mikhail Samoilov

Proceedings Volume 3553, (1998) https://doi.org/10.1117/12.318101

KEYWORDS: Black bodies, Temperature metrology, Calibration, Solar concentrators, Nitrogen, Reflectivity, Liquids, Monte Carlo methods, Reflectors, Control systems

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Proceedings Article | 8 November 1996 Paper

High-temperature blackbody sources for precision radiometry

Victor Sapritsky, Boris Khlevnoi, Vladimir Khromchenko, Sergei Mekhontsev, Alexander Prokhorov, Leonid Samoilov, Vjcheslav Shapoval, Konstantin Sudarev, Menache Zelener

Proceedings Volume 2815, (1996) https://doi.org/10.1117/12.257142

KEYWORDS: Black bodies, Temperature metrology, Radiometry, Metrology, Carbon, Standards development, Resistance, Ultraviolet radiation, Manufacturing, Radio optics

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Proceedings Article | 8 November 1996 Paper

Modeling of integrating spheres for photometric and radiometric applications

Alexander Prokhorov, Victor Sapritsky, Sergei Mekhontsev

Proceedings Volume 2815, (1996) https://doi.org/10.1117/12.257147

KEYWORDS: Optical spheres, Reflection, Integrating spheres, Monte Carlo methods, Software development, Reflectivity, Spherical lenses, Computer simulations, Coating, Algorithm development

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Proceedings Article | 8 November 1996 Paper

Optimization of filter radiometer spectral response

Alexander Prokhorov, Christopher Chunnilall, Nigel Fox, Sergei Mekhontsev, Victor Sapritsky

Proceedings Volume 2815, (1996) https://doi.org/10.1117/12.257151

KEYWORDS: Optical filters, Glasses, Composites, Transmittance, Radiometry, Absorption filters, Software development, Sensors, Optical testing, Optimization (mathematics)

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Showing 5 of 16 publications

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