Prof. J. Christopher Clemens Profile

Prof. J. Christopher Clemens

Associate Professor at Univ of North Carolina at Chapel Hill

SPIE Involvement:

Author

Publications (10)

Proceedings Article | 7 August 2014 Paper

Curved VPH gratings for novel spectrographs

J. Christopher Clemens, Darragh O'Donoghue, Bart Dunlap

Proceedings Volume 9151, 91511K (2014) https://doi.org/10.1117/12.2055585

KEYWORDS: Spectrographs, Optical design, Spherical lenses, Diffraction gratings, Astronomy, Holography, Wavefronts, Reflection, Mirrors, Ions

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Proceedings Article | 7 August 2014 Paper

Mass production of volume phase holographic gratings for the VIRUS spectrograph array

Taylor Chonis, Amy Frantz, Gary Hill, J. Christopher Clemens, Hanshin Lee, Sarah Tuttle, Joshua Adams, J. Marshall, D. DePoy, Travis Prochaska

Proceedings Volume 9151, 91511J (2014) https://doi.org/10.1117/12.2056053

KEYWORDS: Spectrographs, Light scattering, Scattering, Optical design, Charge-coupled devices, Light emitting diodes, Holography, Telescopes, Near ultraviolet, Diffraction gratings

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Proceedings Article | 8 July 2014 Paper

Project status of the Robert Stobie spectrograph near infrared instrument (RSS-NIR) for SALT

Marsha Wolf, Mark Mulligan, Michael Smith, Douglas Adler, Curtis Bartosz, Matthew Bershady, David Buckley, Mahesh Burse, Pravin Chordia, J. Christopher Clemens, Harland Epps, Kristine Garot, Briana Indahl, Kurt Jaehnig, Ron Koch, William Mason, Gregory Mosby, Kenneth Nordsieck, Jeffrey Percival, Sujit Punnadi, Anamparambu Ramaprakash, J. Alan Schier, Andrew Sheinis, Stephen Smee, Donald Thielman, Mark Werner, Theodore Williams, Jeffrey Wong

Proceedings Volume 9147, 91470B (2014) https://doi.org/10.1117/12.2056736

KEYWORDS: Sensors, Cameras, Near infrared, Diffraction gratings, Beam splitters, Optical filters, Collimators, Received signal strength, Spectroscopes, Telescopes

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Proceedings Article | 8 July 2014 Paper

Spherical grating spectrometers

Darragh O'Donoghue, J. Christopher Clemens

Proceedings Volume 9147, 914748 (2014) https://doi.org/10.1117/12.2055385

KEYWORDS: Spectrometers, Diffraction gratings, Spherical lenses, Mirrors, Optical design, Image quality, Spectrometer engineering, Off axis mirrors, Volume holography, Holography

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Proceedings Article | 24 September 2012 Paper

Methods for evaluating the performance of volume phase holographic gratings for the VIRUS spectrograph array

Taylor Chonis, Gary Hill, J. Christopher Clemens, Bart Dunlap, Hanshin Lee

Proceedings Volume 8446, 84465H (2012) https://doi.org/10.1117/12.926189

KEYWORDS: Spectrographs, Prototyping, Optical design, Charge-coupled devices, Photodiodes, Light emitting diodes, Computer aided design, Cameras, Diffraction gratings, Volume holography

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Proceedings Article | 25 July 2008 Paper

VPH grating technology for the Thirty Meter Telescope instrumentation program

John Pazder, J. Christopher Clemens

Proceedings Volume 7018, 70184U (2008) https://doi.org/10.1117/12.789524

KEYWORDS: Diffraction gratings, Spectrographs, Sensors, Tolerancing, Diffraction, Collimators, Astronomy, Optical design, Cameras, Thirty Meter Telescope

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Proceedings Article | 23 July 2008 Paper

The image quality of the Southern African Large Telescope (SALT)

Darragh O'Donoghue, Eli Atad-Ettedgui, Luis Balona, Bruce Bigelow, John Booth, Lucian Botha, Janus Brink, David Buckley, Phil Charles, Alrin Christians, J. Christopher Clemens, Lisa Crause, Steven Crawford, Geoffrey Evans, Hitesh Gajjar, Yas Hashimoto, Malcolm Hendricks, Alexei Kniazev, Anthony Koeslag, Willie Koorts, Herman Kriel, Nicola Loaring, Jonathan Love, Fred Marang, Douglas Metcalfe, Brennan Meyer, James O'Connor, Charl du Plessis, Lawrence Ramsey, Encarni Romero-Colmenero, Craig Sass, Johann Scholtz, Ramotholo Sefako, Sandisa Siyengo, Martin Still, Ockert Strydom, Arkadiusz Swat, Johann Du Toit, Petri Vaisanen, Martyn Wells, Hannah Worters

Proceedings Volume 7018, 701813 (2008) https://doi.org/10.1117/12.788841

KEYWORDS: Mirrors, Telescopes, Monochromatic aberrations, Image quality, Cameras, Simulation of CCA and DLA aggregates, Image segmentation, Wavefront sensors, Wavefronts, Interfaces

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Proceedings Article | 30 September 2004 Paper

The Goodman spectrograph

J. Christopher Clemens, J. Adam Crain, Robert Anderson

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.550069

KEYWORDS: Spectrographs, Cameras, Camera shutters, Telescopes, Collimators, Optical benches, Optical design, Optical filters, Holography, Lenses

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Proceedings Article | 15 September 2004 Paper

The Goodman spectrograph control system

J. Adam Crain, J. Christopher Clemens, Matthew Bayliss

Proceedings Volume 5496, (2004) https://doi.org/10.1117/12.550070

KEYWORDS: Control systems, LabVIEW, Spectrographs, Telecommunications, Personal digital assistants, Actuators, Optical filters, Telescopes, Cameras, Human-machine interfaces

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Proceedings Article | 16 August 2000 Paper

Optics for a volume holographic grating spectrograph for the Southern Astrophysical Research (SOAR) Telescope

J. Christopher Clemens, Harland Epps, Scott Seagroves

Proceedings Volume 4008, (2000) https://doi.org/10.1117/12.395469

KEYWORDS: Cameras, Spectrographs, Collimators, Telescopes, Optical design, Image quality, Ultraviolet radiation, Volume holography, Holography, Diffraction gratings

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Showing 5 of 10 publications

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