Mr. Udo J. Wehmeier Profile

Udo J. Wehmeier

Graduate Research Assistant at Jet Propulsion Lab

SPIE Involvement:

Author

Publications (13)

Proceedings Article | 18 September 2018 Presentation + Paper

Presentation + Paper

The Lunar Flashlight CubeSat instrument: a compact SWIR laser reflectometer to quantify and map water ice on the surface of the moon

Udo Wehmeier, Quentin Vinckier, R. Glenn Sellar, Christopher Paine, Paul Hayne, Mahmood Bagheri, Mina Rais-Zadeh, Siamak Forouhar, Jessica Loveland, Jacob Shelton

Proceedings Volume 10769, 107690H (2018) https://doi.org/10.1117/12.2320643

KEYWORDS: Receivers, Sensors, Electronics, Space operations, Signal to noise ratio, Reflectometry, Mirrors, Short wave infrared radiation

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Proceedings Article | 5 June 2018 Paper

Paper

Optical and mechanical designs of the multi-band SWIR receiver for the Lunar Flashlight CubeSat mission

Quentin Vinckier, Karlton Crabtree, Megan Gibson, Christopher Smith, Udo Wehmeier, Paul Hayne, R. Glenn Sellar

Proceedings Volume 10690, 106901I (2018) https://doi.org/10.1117/12.2302914

KEYWORDS: Receivers, Reflectometry, Short wave infrared radiation, Reflectivity, Optical design, Mechanical engineering, Radiometry

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Proceedings Article | 24 September 2012 Paper

Paper

An integrated 1-5 micron test bench for the characterization of cryogenic optical elements

Udo Wehmeier, Jarron Leisenring, Olivier Durney, Elliott Solheid, Gerard Luppino, Michael Meyer

Proceedings Volume 8446, 84463G (2012) https://doi.org/10.1117/12.927066

KEYWORDS: Cameras, Near infrared, Sensors, Cryogenics, Optical design, Cryocoolers, Mirrors, Diffraction, Computer aided design, Aluminum

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Proceedings Article | 21 September 2012 Paper

Paper

Visible/infrared spectrometer for EChO

O. Krause, A. Glauser, R. van Boekel, M. Güdel, T. Henning, M. Meyer, D. Stam, B. Vandenbussche, U. Grözinger, U. Klaas, R. Lenzen, F. Müller, R. Ottensamer, S. Quanz, E. Renotte, R.-R. Rohloff, H.-M. Schmid, J.-R. Schrader, U. Wehmeier

Proceedings Volume 8442, 84421H (2012) https://doi.org/10.1117/12.927157

KEYWORDS: Sensors, Spectroscopy, Calibration, Telescopes, Mirrors, Signal to noise ratio, Infrared spectroscopy, Space telescopes, Thermography, Exoplanets

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Proceedings Article | 13 September 2012 Paper

Paper

Conceptual phase A design of a cryogenic shutter mechanism for the SAFARI flight instrument

Max Eigenmann, Udo Wehmeier, Aurèle Vuilleumier, Gabriele Messina, Michael Meyer

Proceedings Volume 8450, 84504G (2012) https://doi.org/10.1117/12.927068

KEYWORDS: Camera shutters, Actuators, Current controlled current source, Calibration, Cryogenics, Fourier transforms, Space telescopes, Fermium, Frequency modulation, Reliability

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Proceedings Article | 22 July 2010 Paper

Paper

SIM Lite mission spectral calibration sensitivities and refinements

C. Zhai, X. An, R. Goullioud, B. Nemati, M. Shao, J. Shen, X. Wang, U. Wehmeier, M. Weilert, T. Werne, J. Wu

Proceedings Volume 7734, 77341J (2010) https://doi.org/10.1117/12.856336

KEYWORDS: Calibration, Spectral calibration, Error analysis, Stars, Modulation, Ferroelectric materials, Data modeling, Phase shift keying, Fourier transforms, Optical filters

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Proceedings Article | 22 July 2010 Paper

Paper

SCDU testbed automated in-situ alignment, data acquisition, and analysis

Thomas Werne, Udo Wehmeier, Janet Wu, Xin An, Renaud Goullioud, Bijan Nemati, Michael Shao, Tsae-Pyng Shen, Xu Wang, Mark Weilert, Chengxing Zhai

Proceedings Volume 7734, 77344F (2010) https://doi.org/10.1117/12.857525

KEYWORDS: MATLAB, Computing systems, Cameras, Data storage, Data processing, Data acquisition, Distributed computing, Human-machine interfaces, Control systems, Real-time computing

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Proceedings Article | 22 July 2010 Paper

Paper

SCDU (Spectral Calibration Development Unit) testbed narrow angle astrometric performance

Xu Wang, Renaud Goullioud, Bijan Nemati, Michael Shao, Udo Wehmeier, Mark Weilert, Thomas Werne, Janet Wu, Chengxing Zhai

Proceedings Volume 7734, 77344J (2010) https://doi.org/10.1117/12.857278

KEYWORDS: Calibration, Stars, Spectral calibration, Interferometers, Optical filters, Picosecond phenomena, Error analysis, Data processing, Exoplanets, Metrology

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Proceedings Article | 22 July 2010 Paper

Paper

Mitigation of angle tracking errors due to color dependent centroid shifts in SIM Lite

Bijan Nemati, Xin An, Renaud Goullioud, Michael Shao, Tsae-Pyng Shen, Udo Wehmeier, Mark Weilert, Xu Wang, Thomas Werne, Janet Wu, Chengxing Zhai

Proceedings Volume 7734, 77344I (2010) https://doi.org/10.1117/12.857778

KEYWORDS: Stars, Interferometers, Metrology, Cameras, Wavefronts, Point spread functions, Charge-coupled devices, Optical alignment, CCD cameras, Beam splitters

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Proceedings Article | 22 July 2010 Paper

Paper

SIM interferometer testbed (SCDU) status and recent results

Bijan Nemati, Xin An, Renaud Goullioud, Michael Shao, Tsae-Pyng Shen, Udo Wehmeier, Mark Weilert, Xu Wang, Thomas Werne, Janet Wu, Chengxing Zhai

Proceedings Volume 7734, 77341N (2010) https://doi.org/10.1117/12.856300

KEYWORDS: Stars, Calibration, Interferometers, Error analysis, Metrology, Wavefronts, Spectral calibration, CCD cameras, Cameras, Light sources

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Proceedings Article | 20 October 2004 Paper

Paper

The potential of conductive waveguides for nulling interferometry

Udo Wehmeier, Mark Swain, Christian Drouet d'Aubigny, Dathon Golish, Christopher Walker

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.549954

KEYWORDS: Waveguides, Nulling interferometry, Mid-IR, Integrated optics, Computer aided design, Information operations, Interferometers, Phase shifts, Instrument modeling, Signal attenuation

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Proceedings Article | 26 February 2003 Paper

Paper

Fringe tracking in the StarLight formation interferometer testbed

Udo Wehmeier, Kurt Liewer, Joel Shields

Proceedings Volume 4852, (2003) https://doi.org/10.1117/12.460857

KEYWORDS: Interferometers, Detection and tracking algorithms, Metrology, Space operations, Cameras, Visibility, Ferroelectric materials, Sensors, Servomechanisms, Control systems

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Proceedings Article | 26 February 2003 Paper

Paper

Wavefront tilt feedforward for the formation interferometer testbed (FIT)

Joel Shields, Kurt Liewer, Udo Wehmeier

Proceedings Volume 4852, (2003) https://doi.org/10.1117/12.459342

KEYWORDS: Space operations, Electroluminescence, Mirrors, Metrology, Wavefronts, Sensors, Interferometry, Ferroelectric materials, Interferometers, Stars

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Showing 5 of 13 publications

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