Dr. Lenward T. Seals
Optical Engineer at NASA Goddard Space Flight Center
SPIE Involvement:
Author
Publications (13)

Proceedings Article | 18 July 2024 Poster + Paper
Proceedings Volume 13096, 1309660 (2024) https://doi.org/10.1117/12.3019837
KEYWORDS: Mirrors, Design, Spectrographs, Optical design, Spectral resolution, Optical surfaces, Optical components, Manufacturing, Iterated function systems, Optical instrument design

Proceedings Article | 5 October 2023 Presentation + Paper
Melville Ulmer, Daniel Quispe, Len Seals, Giovanni De Vita, S. Stagon, Nicholas Asbury, D. Buchholz, Jian Cao, Y.-W. Chung, Raj Vaidyanathan
Proceedings Volume 12679, 126790A (2023) https://doi.org/10.1117/12.2677459
KEYWORDS: Extreme ultraviolet, Polishing, Shape memory alloys, Mirrors, Coating, Surface finishing, Magnetism, Education and training, Polymers, Space telescopes

SPIE Journal Paper | 3 February 2021 Open Access
JATIS, Vol. 7, Issue 01, 011010, (February 2021) https://doi.org/10.1117/12.10.1117/1.JATIS.7.1.011010
KEYWORDS: Mirrors, Telescopes, Optical design, Space telescopes, Wavefronts, Optical instrument design, Spectroscopy, Observatories, James Webb Space Telescope, Surface roughness

SPIE Journal Paper | 6 January 2021 Open Access
Edward Amatucci, Lynn Allen, Jonathan Arenberg, Lee Armus, Cara Battersby, James Bauer, Porfirio Beltran, Dominic Benford, Denis Burgarella, Ruth Carter, Danny Chi, Asantha Cooray, James Corsetti, Elvire De Beck, Larry Dewell, Michael DiPirro, Matthew East, Samantha Edgington, Kimberly Ennico, Louis Fantano, David Folta, Joseph Generie, Zachary Granger, Thomas Greene, Alex Griffiths, George Harpole, Frank Helmich, Joseph Howard, Tracee Jamison, Lisa Kaltenegger, Tiffany Kataria, Charles Lawrence, Margaret Meixner, Ted Mooney, Samuel Moseley, Susan Neff, Thanh Nguyen, Alison Nordt, Michael Petach, Susanna Petro, Alexandra Pope, Daniel Ramspacker, Alison Rao, Itsuki Sakon, Karin Sandstrom, Douglas Scott, Lenward Seals, Kartik Sheth, Steven Tompkins, Cassandra Webster, Martina Wiedner, Edward Wright, Chi Wu, Jonas Zmuidzinas, David Leisawitz, Bob Beaman, Raymond Bell, Edward Bergin, Jeffrey Bolognese, Charles Bradford, Damon Bradley, Sean Carey, Tom D'Asto, Kevin Denis, Christopher Derkacz, C. Paul Earle, Gregory Feller, Jonathan Fortney, Benjamin Gavares, Maryvonne Gerin, Keith Harvey, Lawrence Hilliard, Michael Jacoby, Anisa Jamil, J. Scott Knight, Perry Knollenberg, Paul Lightsey, Sarah Lipscy, Eric Mamajek, Gregory Martins, John Mather, Gary Melnick, Stefanie Milam, Desika Narayanan, Jeffrey Olson, Deborah Padgett, John Pohner, Klaus Pontoppidan, Thomas Roellig, Carly Sandin, Larry Sokolsky, Johannes Staguhn, John Steeves, Kevin Stevenson, Eric Stoneking, Kate Su, Kiarash Tajdaran, Joaquin Vieira
JATIS, Vol. 7, Issue 01, 011002, (January 2021) https://doi.org/10.1117/12.10.1117/1.JATIS.7.1.011002

Proceedings Article | 9 September 2019 Paper
Proceedings Volume 11115, 1111513 (2019) https://doi.org/10.1117/12.2530641
KEYWORDS: Optical design, Space telescopes, Galactic astronomy, Telescopes, Spectroscopy, Astronomy, Astrophysics, Exoplanets, Solar system, Mirrors

Proceedings Article | 9 September 2019 Open Access Paper
D. Leisawitz, E. Amatucci, L. Allen, J. Arenberg, L. Armus, C. Battersby, B. Beaman, J. Bauer, R. Bell, P. Beltran, D. Benford, E. Bergin, J. Bolognese, C. Bradford, D. Bradley, D. Burgarella, S. Carey, R. Carter, J. Chi, A. Cooray, J. Corsetti, T. D'Asto, E. De Beck, K. Denis, C. Derkacz, L. Dewell, M. DiPirro, C. P. Earle, M. East, S. Edgington, K. Ennico, L. Fantano, G. Feller, A. Flores, D. Folta, J. Fortney, B. Gavares, J. Generie, M. Gerin, Z. Granger, T. Greene, A. Griffiths, G. Harpole, K. Harvey, F. Helmich, G. Helou, L. Hilliard, J. Howard, M. Jacoby, A. Jamil, T. Jamison, L. Kaltenegger, T. Kataria, J. S. Knight, P. Knollenberg, C. Lawrence, P. Lightsey, S. Lipscy, C. Lynch, E. Mamajek, G. Martins, J. Mather, M. Meixner, G. Melnick, S. Milam, T. Mooney, S. Moseley, D. Narayanan, S. Neff, T. Nguyen, A. Nordt, J. Olson, D. Padgett, M. Petach, S. Petro, J. Pohner, K. Pontoppidan, A. Pope, D. Ramspacher, A. Rao, G. Rieke, M. Rieke, T. Roellig, I. Sakon, C. Sandin, K. Sandstrom, D. Scott, L. Seals, K. Sheth, J. Staguhn, J. Steeves, K. Stevenson, L. Stokowski, E. Stoneking, K. Su, K. Tajdaran, S. Tompkins, J. Turner, J. Vieira, C. Webster, M. Wiedner, E. Wright, C. Wu, J. Zmuidzinas
Proceedings Volume 11115, 111150Q (2019) https://doi.org/10.1117/12.2530514
KEYWORDS: Galactic astronomy, Planets, Stars, Telescopes, Astronomy, James Webb Space Telescope, Sensors, Space telescopes, Exoplanets, Observatories

Proceedings Article | 6 July 2018 Presentation + Paper
Ryan Irvin, Scott Rohrbach, Lenward Seals, Dennis Skelton
Proceedings Volume 10698, 1069806 (2018) https://doi.org/10.1117/12.2314487
KEYWORDS: James Webb Space Telescope, Point spread functions, Solid modeling, Instrument modeling, Ray tracing, Optical design software

Proceedings Article | 6 July 2018 Paper
Proceedings Volume 10698, 1069845 (2018) https://doi.org/10.1117/12.2312268
KEYWORDS: Stray light, Telescopes, Space telescopes, Observatories, James Webb Space Telescope, Mirrors, Sun, Ray tracing, Sensors

Proceedings Article | 28 September 2016 Presentation + Paper
Scott Rohrbach, Ryan Irvin, Lenward Seals, Dennis Skelton
Proceedings Volume 9947, 99470K (2016) https://doi.org/10.1117/12.2238827
KEYWORDS: Stray light, James Webb Space Telescope, Optical components, Sensors, Scattering, Light scattering, Staring arrays, Solid modeling, Optical filters, Mirrors

Proceedings Article | 19 July 2016 Paper
D. Fixsen, Alan Kogut, Robert Hill, Peter Nagler, Lenward Seals, Joseph Howard
Proceedings Volume 9914, 99141B (2016) https://doi.org/10.1117/12.2232717
KEYWORDS: Polarization, Fourier transforms, Beam shaping, Sensors, Solar concentrators, Fourier transforms, Calibration, Mirrors, Polarizers, Stray light, Signal detection

Proceedings Article | 17 December 2014 Paper
Bert Pasquale, David Content, Jeffery Kruk, David Vaughnn, Qian Gong, Joseph Howard, Alden Jurling, Len Seals, Eric Mentzell, Nerses Armani, Gary Kuan
Proceedings Volume 9293, 929305 (2014) https://doi.org/10.1117/12.2177847
KEYWORDS: Mirrors, Telescopes, Optical design, Space telescopes, Staring arrays, Sensors, James Webb Space Telescope, Infrared telescopes, Observatories, Ray tracing

SPIE Journal Paper | 1 September 2013
OE, Vol. 52, Issue 09, 091811, (September 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.9.091811

Proceedings Article | 21 September 2012 Paper
Brent Bos, Joseph Howard, Philip Young, Renee Gracey, Lenward Seals, Raymond Ohl
Proceedings Volume 8442, 84423I (2012) https://doi.org/10.1117/12.926365
KEYWORDS: Optical alignment, James Webb Space Telescope, Optimization (mathematics), Optical components, Instrument modeling, Ray tracing, Chemical elements, Geometrical optics, Mirrors, Interfaces

Showing 5 of 13 publications
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