Dr. Susan F. Redmond Profile

Dr. Susan F. Redmond

Postdoctoral Fellow at Caltech

SPIE Involvement:

Author

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Publications (29)

SPIE Journal Paper | 25 October 2024 Open Access

Open Access

Exoplanet detection techniques for direct imaging dark zone maintenance datasets

Susan Redmond, Laurent Pueyo, Emiel Por, Raphaël Pourcelot, Iva Laginja, Bryony Nickson, Ananya Sahoo, Meiji Nguyen, N. Jeremy Kasdin, Marshall Perrin, Rémi Soummer, Leonid Pogorelyuk

JATIS, Vol. 10, Issue 04, 049003, (October 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.4.049003

KEYWORDS: Planets, Signal to noise ratio, Point spread functions, Exoplanetary science, Stars, Coherence imaging, Telescopes, Electric fields, Coronagraphy, Optical coherence

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SPIE Journal Paper | 20 September 2024 Open Access

Open Access

Current laboratory performance of starlight suppression systems and potential pathways to desired Habitable Worlds Observatory exoplanet science capabilities

Bertrand Mennesson, Ruslan Belikov, Emiel Por, Eugene Serabyn, Garreth Ruane, A. J. Eldorado Riggs, Dan Sirbu, Laurent Pueyo, Rémi Soummer, Jeremy Kasdin, Stuart Shaklan, Byoung-Joon Seo, Christopher Stark, Eric Cady, Pin Chen, Brendan Crill, Kevin Fogarty, Alexandra Greenbaum, Olivier Guyon, Roser Juanola-Parramon, Brian Kern, John Krist, Bruce Macintosh, David Marx, Dimitri Mawet, Camilo Mejia Prada, Rhonda Morgan, Bijan Nemati, Leonid Pogorelyuk, Susan Redmond, Sara Seager, Nicholas Siegler, Karl Stapelfeldt, Sarah Steiger, John Trauger, James Wallace, Marie Ygouf, Neil Zimmerman

JATIS, Vol. 10, Issue 03, 035004, (September 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.3.035004

KEYWORDS: Coronagraphy, Planets, Signal to noise ratio, Telescopes, Point spread functions, Stars, Exoplanets, Wavefronts, Spectroscopy, Design

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We summarize the current best polychromatic (∼10% to 20% bandwidth) contrast performance demonstrated in the laboratory by different starlight suppression approaches and systems designed to directly characterize exoplanets around nearby stars. We present results obtained by internal coronagraph and external starshade experimental testbeds using entrance apertures equivalent to off-axis or on-axis telescopes, either monolithic or segmented. For a given angular separation and spectral bandwidth, the performance of each starlight suppression system is characterized by the values of “raw” contrast (before image processing), off-axis (exoplanet) core throughput, and post-calibration contrast (the final 1-sigma detection limit of off-axis point sources, after image processing). Together, the first two parameters set the minimum exposure time required for observations of exoplanets at a given signal-to-noise, i.e., assuming perfect subtraction of background residuals down to the photon noise limit. In practice, residual starlight speckle fluctuations during the exposure will not be perfectly estimated nor subtracted, resulting in a finite post-calibrated contrast and exoplanet detection limit whatever the exposure time. To place the current laboratory results in the perspective of the future Habitable Worlds Observatory (HWO) mission, we simulate visible observations of a fiducial Earth/Sun twin system at 12 pc, assuming a 6 m (inscribed diameter) collecting aperture and a realistic end-to-end optical throughput. The exposure times required for broadband exo-Earth detection (20% bandwidth around λ=0.55 μm) and visible spectroscopic observations (R=70) are then computed assuming various levels of starlight suppression performance, including the values currently demonstrated in the laboratory. Using spectroscopic exposure time as a simple metric, our results point to key starlight suppression system design performance improvements and trades to be conducted in support of HWO’s exoplanet science capabilities. These trades may be explored via numerical studies, lab experiments, and high-contrast space-based observations and demonstrations.

Proceedings Article | 11 September 2024 Poster + Paper

Poster + Paper

From SuperBIT to GigaBIT: informing next-generation balloon-borne telescope design with fine guidance system flight data

Philippe Voyer, Steven Benton, Christopher Damaren, Spencer Everett, Aurelien Fraisse, Ajay Gill, John Hartley, David Harvey, Michael Henderson, Bradley Holder, Eric Huff, Mathilde Jauzac, William Jones, David Lagattuta, Jason S.-Y. Leung, Lun Li, Thuy Vy Luu, Richard Massey, Jacqueline McCleary, Johanna Nagy, C. Barth Netterfield, Emaad Paracha, Susan Redmond, Jason Rhodes, Andrew Robertson, L. Javier Romualdez, Jürgen Schmoll, Mohamed Shaaban, Ellen Sirks, Georgios Vassilakis, André Vitorelli

Proceedings Volume 13094, 130944Z (2024) https://doi.org/10.1117/12.3017869

KEYWORDS: Telescopes, Gyroscopes, Design, Stars, Control systems, Data modeling, Cameras, Physics, Sensors, Mirrors

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Proceedings Article | 11 September 2024 Poster + Paper

Poster + Paper

To the stratosphere and beyond! Super-pressure balloon flight overview for the Super-pressure Balloon-borne Imaging Telescope (SuperBIT)

Susan Redmond, Steven Benton, Christopher Damaren, Spencer Everett, Aurelien Fraisse, Ajay Gill, John Hartley, David Harvey, Bradley Holder, Eric Huff, Mathilde Jauzac, William Jones, David Lagattuta, Jason S.-Y. Leung, Lun Li, Thuy Vy Luu, Richard Massey, Jacqueline McCleary, Johanna Nagy, C. Barth Netterfield, Emaad Paracha, Jason Rhodes, Andrew Robertson, L. Javier Romualdez, Jürgen Schmoll, Mohamed Shaaban, Ellen Sirks, Georgios Vassilakis, André Vitorelli

Proceedings Volume 13094, 130942P (2024) https://doi.org/10.1117/12.3020296

KEYWORDS: Galaxy groups and clusters, Balloons, Telescopes, Sun, Stars, Calibration, Physics, Antennas

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Proceedings Article | 28 August 2024 Poster + Presentation

Poster + Presentation

Overview of communications and observation strategies in the stratosphere for the Super Pressure Balloon-borne Imaging Telescope (SuperBIT)

Emaad Paracha, Steven Benton, Christopher Damaren, Spencer Everett, Aurelien Fraisse, Ajay Gill, John Hartley, David Harvey, Bradley Holder, Eric Huff, Mathilde Jauzac, William Jones, David Lagattuta, Jason S. Leung, Lun Li, Thy Vy Luu, Richard Massey, Jacqueline McCleary, Johanna Nagy, C. Barth Netterfield, Susan Redmond, Jason Rhodes, Andrew Robertson, L. Javier Romualdez, Jürgen Schmoll, Mohamed Shaaban, Ellen Sirks, Georgios Vassilakis, Andre Vitorelli, Philippe Voyer

Proceedings Volume 13094, 1309414 (2024) https://doi.org/10.1117/12.3019360

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Proceedings Article | 23 August 2024 Presentation + Paper

Presentation + Paper

Prototype development of broadband scalar vortex coronagraphs with phase dimples for exoplanet imaging

Niyati Desai, Dimitri Mawet, Arielle Bertrou-Cantou, Matthias Kraus, Arnaud Deparnay, Eugene Serabyn, Garreth Ruane, Susan Redmond

Proceedings Volume 13092, 1309221 (2024) https://doi.org/10.1117/12.3020702

KEYWORDS: Coronagraphy, Spiral phase plates, Manufacturing, Wavefronts, Exoplanets

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Proceedings Article | 23 August 2024 Poster + Paper

Poster + Paper

Coronagraph design survey for future exoplanet direct imaging space missions

Ruslan Belikov, Christopher Stark, Nick Siegler, Emiel Por, Bertrand Mennesson, Susan Redmond, Pin Chen, Kevin Fogarty, Olivier Guyon, Roser Juanola-Parramon, Jeremy Kasdin, John Krist, Dimitri Mawet, Rhonda Morgan, Camilo Mejia Prada, Laurent Pueyo, Garreth Ruane, Dan Sirbu, Karl Stapelfeldt, John Trauger, Neil Zimmerman, Mary Angelie Alagao, Alex Carlotti, Jamal Chafi, David Doleman, Jessica Gersh-Range, Lorenzo König, Lucille Leboulleux, Dwight Moody, A. Riggs, Eugene Serabyn, Frans Snik, Kent Wallace

Proceedings Volume 13092, 1309266 (2024) https://doi.org/10.1117/12.3020614

KEYWORDS: Coronagraphy, Design, Cadmium sulfide, Stars, Telescopes, Exoplanets, Equipment, Yield improvement, Planets, Photonic integrated circuits

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Proceedings Article | 23 August 2024 Poster + Paper

Poster + Paper

High-contrast spectroscopy testbed (HCST): tip/tilt sensing in reflection of the vector vortex coronagraph (VVC)

A. Bertrou-Cantou, S. Redmond, D. Mawet, G. Sercel, D. Echeverri, N. Desai, J. Llop-Sayson, G. Ruane, E. Serabyn, J. Wallace

Proceedings Volume 13092, 130926B (2024) https://doi.org/10.1117/12.3019237

KEYWORDS: Coronagraphy, Wavefront sensors, Vibration, Spectroscopy, Point spread functions, Wavefronts

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Proceedings Article | 23 August 2024 Presentation + Paper

Presentation + Paper

Exoplanet detection techniques for direct imaging dark zone maintenance data sets

Susan Redmond, Laurent Pueyo, Emiel Por, Raphaël Pourcelot, Iva Laginja, Bryony Nickson, Ananya Sahoo, Meiji Nguyen, N. Jeremy Kasdin, Marshall Perrin, Rémi Soummer, Leonid Pogorelyuk

Proceedings Volume 13092, 1309224 (2024) https://doi.org/10.1117/12.3015089

KEYWORDS: Planets, Signal to noise ratio, Telescopes, Coherence imaging, Point spread functions, Optical coherence, Histograms, Coronagraphy, Stars, Wavefronts

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Proceedings Article | 23 August 2024 Presentation + Paper

Presentation + Paper

High-contrast imager for complex aperture telescopes (HiCAT): 11. System-level demonstration of the apodized pupil Lyot coronagraph with a segmented aperture in air

Rémi Soummer, Raphaël Pourcelot, Emiel Por, Sarah Steiger, Iva Laginja, Benjamin Buralli, Susan Redmond, Laurent Pueyo, Marshall Perrin, Marc Ferrari, Jules Fowler, John Hagopian, Mamadou N'Diaye, Meiji Nguyen, Bryony Nickson, Peter Petrone, Ananya Sahoo, Anand Sivaramakrishnan, Scott Will

Proceedings Volume 13092, 130921Z (2024) https://doi.org/10.1117/12.3018037

KEYWORDS: Coronagraphy, Telescopes, Imaging systems, Wavefronts, Phase retrieval, Exoplanets

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We present the final results of the Apodized Pupil Lyot Coronagraph (APLC) on the High-contrast imager for Complex Aperture Telescopes (HiCAT) testbed, under NASA’s Strategic Astrophysics Technology program. The HiCAT testbed was developed over the past decade to enable a system-level demonstration of coronagraphy for exoplanet direct imaging with the future Habitable Wolds Observatory. HiCAT includes an active, segmented telescope simulator, a coronagraph, and metrology systems (Low-order and Mid-Order Zernike Wavefront Sensors, and Phase Retrieval camera). These results correspond to an off-axis (un-obscured) configuration, as was envisioned in the 2020 Decadal Survey Recommendations. Narrowband and broadband dark holes are generated using two continuous deformable mirrors (DM) to control high order wavefront aberrations, and low-order drifts can be further stabilized using the LOWFS loop. The APLC apodizers, manufactured using carbon nanotubes, were optimized for broadband performance and include the calibrated geometric aperture. The objectives of this SAT program were organized in three milestones to reach a system-like level demonstration of segmented-aperture coronagraphy, from static component demonstration to system-level demonstration under both natural and artificial disturbances. HiCAT is, to this date, the only testbed facility able to demonstrate high-contrast coronagraphy with a truly segmented aperture, as is required for the Habitable World Observatory, albeit limited to ambient conditions, corresponding to NASA’s Technology Readiness Level (TRL) 4. Results presented here include 6 × 10⁻⁸ (90% CI) contrast in 9% bandpass in a 360 deg dark hole with inner and outer working angles of 4.4λ/D_pupil and 11λ/D_pupil. Narrowband contrast (3% bandpass) reaches 2.4 × 10⁻⁸ (90% confidence interval). We first explore the open-loop stability of the entire system quantify the baseline testbed performance. Then we present dark hole stabilization using both high-order and low-order loops under both low-order and segment level drifts in narrow and broadband. We compare experimental data with that obtained by the end-to-end HiCAT simulator. We establish that current performance limitations are due to a combination of ambient conditions, detector and deformable mirrors noises (including quantization), and model mismatch.

Proceedings Article | 23 August 2024 Poster + Paper

Poster + Paper

A parameter scan of dark zone maintenance for high-contrast imaging of exoplanets using theoretical and experimental implementations

Saikrishna Manojkumar, Christine Page, Leonid Pogorelyuk, Susan Redmond, Ajay Gill, Laurent Pueyo, Emiel Por, Iva Laginja, Raphael Pourcelot, Bryony Nickson, Ananya Sahoo, Meiji Nguyen, Rémi Soummer, Marshall Perrin, Bijan Nemati, Kerri Cahoy, Jeremy Kasdin

Proceedings Volume 13092, 1309269 (2024) https://doi.org/10.1117/12.3019008

KEYWORDS: Wavefronts, Wavefront sensors, Coronagraphy, Simulations, Electric fields, Cameras, Space telescopes, Signal to noise ratio, Exoplanets, Stars, Equipment, Imaging systems

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Proceedings Article | 23 August 2024 Poster + Paper

Poster + Paper

Mid-order wavefront control for exoplanet imaging: preliminary characterization of the segmented deformable mirror and Zernike wavefront sensor on HiCAT

Benjamin Buralli, Mamadou N'Diaye, Raphaël Pourcelot, Marcel Carbillet, Emiel Por, Iva Laginja, Ludovic Canas, Sarah Steiger, Peter Petrone, Meiji Nguyen, Bryony Nickson, Susan Redmond, Ananya Sahoo, Laurent Pueyo, Marshall Perrin, Rémi Soummer

Proceedings Volume 13092, 1309268 (2024) https://doi.org/10.1117/12.3018900

KEYWORDS: Signal to noise ratio, Wavefront sensors, Wavefront errors, Telescopes, Wavefronts, Deformable mirrors, Mirrors, Actuators, Sensors

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Proceedings Article | 16 August 2024 Presentation + Paper

Presentation + Paper

In-flight performance of SPIDER's 280 GHz receivers

E. Shaw, P. A. Ade, S. Akers, M. Amiri, J. Austermann, J. Beall, D. Becker, S. Benton, A. Bergman, J. Bock, J. Bond, S. Bryan, H. Chiang, C. Contaldi, R. Domagalski, O. Doré, S. Duff, A. Duivenvoorden, H. Ericksen, M. Farhang, J. Filippini, L. Fissel, A. Fraisse, K. Freese, M. Galloway, A. Gambrel, N. Gandilo, K. Ganga, S. Gibbs, S. Gourapura, A. Grigorian, R. Gualtieri, J. Gudmundsson, M. Halpern, J. Hartley, M. Hasselfield, G. Hilton, W. Holmes, V. Hristov, Z. Huang, J. Hubmayr, K. Irwin, W. Jones, A. Kahn, Z. Kermish, C. King, C. Kuo, A. Lennox, J. S.-Y. Leung, S. Li, T. Luu, P. Mason, J. May, K. Megerian, L. Moncelsi, T. Morford, J. Nagy, R. Nie, C. Netterfield, M. Nolta, B. Osherson, I. Padilla, A. Rahlin, S. Redmond, C. Reintsema, L. Romualdez, J. Ruhl, M. Runyan, J. Shariff, C. Shiu, J. Soler, X. Song, S. Tartakovsky, H. Thommesen, A. Trangsrud, C. Tucker, R. Tucker, A. Turner, J. Ullom, J. van der List, J. Van Lanen, M. Vissers, A. Weber, S. Wen, I. Wehus, D. Wiebe, E. Young

Proceedings Volume 13102, 1310204 (2024) https://doi.org/10.1117/12.3016837

KEYWORDS: Cosmic microwave background, Cosmology, Superconducting detectors, Sensors, Receivers, Optical filters, Physics, Calibration

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SPIE Journal Paper | 18 July 2024

Comparative laboratory study of electric field conjugation algorithms

Niyati Desai, Axel Potier, Susan Redmond, Garreth Ruane, Phillip Poon, A. J. Eldorado Riggs, Matthew Noyes, Camilo Mejia Prada

JATIS, Vol. 10, Issue 03, 035001, (July 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.3.035001

KEYWORDS: Coronagraphy, Electric fields, Scalable video coding, Model based design, Wavefront sensors, Cameras, Spiral phase plates, Wavefronts, Design, Space telescopes

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SPIE Journal Paper | 4 March 2024 Open Access

Open Access

Implementation of a dark zone maintenance algorithm for speckle drift correction in a high contrast space coronagraph (Erratum)

Susan Redmond, Leonid Pogorelyuk, Laurent Pueyo, Emiel Por, James Noss, Scott Will, Iva Laginja, Keira Brooks, Matthew Maclay, J. Fowler, N. Jeremy Kasdin, Marshall Perrin, Rémi Soummer

JATIS, Vol. 10, Issue 01, 019801, (March 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.1.019801

KEYWORDS: Speckle, Coronagraphy, Space telescopes, Solids

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SPIE Journal Paper | 19 December 2023 Open Access

Open Access

High-order coronagraphic wavefront control with algorithmic differentiation: first experimental demonstration

Scott D. Will, Marshall D. Perrin, Emiel H. Por, James Noss, Ananya Sahoo, Peter Petrone, Iva Laginja, Raphaël Pourcelot, Susan F. Redmond, Laurent Pueyo, Tyler D. Groff, James R. Fienup, Remi Soummer

JATIS, Vol. 9, Issue 04, 045004, (December 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.4.045004

KEYWORDS: Coronagraphy, Wavefronts, Actuators, Electric fields, Matrices, Mathematical optimization, Tolerancing, Image segmentation, Nonlinear optimization, Design

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Proceedings Article | 6 October 2023 Presentation

Presentation

High-contrast imager for complex aperture telescopes (HiCAT): 10. Broadband Zernike wavefront sensor under natural and artificial drifts

Raphaël Pourcelot, Emiel Por, Mamadou N'Diaye, Benjamin Buralli, Marcel Carbillet, Kjetil Dohlen, Sylvain Egron, Marc Ferrari, Rachel Fox, Rob Gontrum, Iva Laginja, Meiji Nguyen, Bryony Nickson, Marshall Perrin, Peter Petrone, Laurent Pueyo, Susan Redmond, Ananya Sahoo, Anand Sivaramakrishnan, Hari Subedi, Sam Weinstock, Scott Will, Rémi Soummer, John Hagopian

Proceedings Volume 12680, 126801F (2023) https://doi.org/10.1117/12.2677790

KEYWORDS: Wavefront sensors, Telescopes, Imaging systems, Coronagraphy, Deformable mirrors, Stars, Monochromatic aberrations, Image segmentation, Wavefront aberrations, Observatories

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Proceedings Article | 5 October 2023 Poster + Paper

Poster + Paper

Coronagraph design survey for future exoplanet direct imaging space missions: interim update

Ruslan Belikov, Christopher Stark, Nick Siegler, Emiel Por, Bertrand Mennesson, Pin Chen, Kevin Fogarty, Olivier Guyon, Roser Juanola-Parramon, John Krist, Dimitri Mawet, Camilo Mejia Prada, Jeremy Kasdin, Laurent Pueyo, Susan Redmond, Garreth Ruane, Dan Sirbu, Karl Stapelfeldt, John Trauger, Neil Zimmerman

Proceedings Volume 12680, 126802G (2023) https://doi.org/10.1117/12.2677732

KEYWORDS: Coronagraphy, Design and modelling, Telescopes, Equipment, Exoplanets, Observatories, Wavefronts, Yield improvement, Planets

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SPIE Journal Paper | 9 September 2022

Implementation of a dark zone maintenance algorithm for speckle drift correction in a high contrast space coronagraph

Susan Redmond, Leonid Pogorelyuk, Laurent Pueyo, Emiel Por, James Noss, Scott Will, Iva Laginja, Keira Brooks, Matthew Maclay, J. Fowler, N. Jeremy Kasdin, Marshall Perrin, Rémi Soummer

JATIS, Vol. 8, Issue 03, 035001, (September 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.3.035001

KEYWORDS: Electric fields, Simulations, Histograms, Error analysis, Speckle, Space telescopes, Image segmentation, Humidity, Coronagraphy, Telescopes

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Proceedings Article | 27 August 2022 Presentation + Paper

Presentation + Paper

High-contrast imager for complex aperture telescopes (HiCAT): 8. Dark zone demonstration with simultaneous closed-loop low-order wavefront sensing and control

Rémi Soummer, Emiel Por, Raphaël Pourcelot, Susan Redmond, Iva Laginja, Scott Will, Marshall Perrin, Laurent Pueyo, Ananya Sahoo, Peter Petrone, Keira Brooks, Rachel Fox, Alex Klein, Bryony Nickson, Thomas Comeau, Marc Ferrari, Rob Gontrum, John Hagopian, Lucie Leboulleux, Daniel Leongomez, Joe Lugten, Laurent Mugnier, Mamadou N'Diaye, Meiji Nguyen, James Noss, Jean-François Sauvage, Nathan Scott, Anand Sivaramakrishnan, Hari Subedi, Sam Weinstock

Proceedings Volume 12180, 1218026 (2022) https://doi.org/10.1117/12.2630444

KEYWORDS: Coronagraphy, Wavefronts, Wavefront sensors, Telescopes, Phase retrieval

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Proceedings Article | 27 August 2022 Presentation + Paper

Presentation + Paper

Dark zone maintenance for future coronagraphic space missions

Susan Redmond, Laurent Pueyo, Leonid Pogorelyuk, Emiel Por, James Noss, Keira Brooks, Iva Laginja, Marshall Perrin, Rémi Soummer, N. Jeremy Kasdin

Proceedings Volume 12180, 121802B (2022) https://doi.org/10.1117/12.2630682

KEYWORDS: Signal to noise ratio, Photons, Coronagraphy, Exoplanets, Electron multiplying charge coupled devices, Wavefronts, Space telescopes, Space operations

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Proceedings Article | 1 September 2021 Presentation + Paper

Presentation + Paper

Wavefront control with algorithmic differentiation on the HiCAT testbed

Scott Will, Marshall Perrin, Emiel Por, James Noss, Ananya Sahoo, Peter Petrone, Iva Laginja, Raphael Pourcelot, Susan Redmond, Laurent Pueyo, Tyler Groff, James Fienup, Remi Soummer

Proceedings Volume 11823, 118230V (2021) https://doi.org/10.1117/12.2594283

KEYWORDS: Exoplanets, Space telescopes, Algorithms, Adaptive optics, Control systems, Actuators, Coronagraphy, Wavefronts, Optimization (mathematics), Algorithm development, Point spread functions, Wavefront sensors

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Proceedings Article | 1 September 2021 Presentation + Paper

Presentation + Paper

Dark zone maintenance results for segmented aperture wavefront error drift in a high contrast space coronagraph

Susan Redmond, Laurent Pueyo, Leonid Pogorelyuk, Emiel Por, James Noss, Iva Laginja, Keira Brooks, Marshall Perrin, Rémi Soummer, Jeremy Kasdin

Proceedings Volume 11823, 118231K (2021) https://doi.org/10.1117/12.2594647

KEYWORDS: Coronagraphy, Wavefronts, Space telescopes, Planets, Telescopes, Stars, Point spread functions

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Proceedings Article | 1 September 2021 Paper

Paper

Implementation of a broadband focal plane estimator for high-contrast dark zones

Susan Redmond, Laurent Pueyo, Leonid Pogorelyuk, James Noss, Scott Will, Iva Laginja, N. Jeremy Kasdin, Marshall Perrin, Rémi Soummer

Proceedings Volume 11823, 118231Q (2021) https://doi.org/10.1117/12.2594620

KEYWORDS: Image analysis, Exoplanets, Wavefronts, Stars, Spectroscopy

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Proceedings Article | 4 August 2021 Presentation

Presentation

High-contrast imager for complex aperture telescopes (HiCAT): 7. Dark zone demonstration with fully segmented aperture coronagraph

Rémi Soummer, Iva Laginja, Scott Will, Marshall Perrin, James Noss, Emiel Por, Susan Redmond, Raphaël Pourcelot, Ananya Sahoo, Peter Petrone, Keira Brooks, Laurent Pueyo, Bryony Nickson, Matt Maclay, Gregory Brady, Thomas Comeau, Julia Fowler, Kelsey Glazer, Rob Gontrum, John Hagopian, Theo Jolivet, Maggie Kautz, Lucie Leboulleux, Evelyn McChesney, Laurent Mugnier, Mamadou N'Diaye, Meiji Nguyen, Heather Olszewski, Leonid Pogorelyuk, Jaret Prothro, Jean-François Sauvage, Nathan Scott, Ron Shiri, Anand Sivaramakrishnan, Hari Subedi, Sam Weinstock, Yinzi Xin, Rebecca Zhang

Proceedings Volume 11823, 118230T (2021) https://doi.org/10.1117/12.2594684

KEYWORDS: Image segmentation, Coronagraphy, Telescopes, Imaging systems, Wavefront sensors, Wavefronts, Deformable mirrors, Ultraviolet telescopes, Ultraviolet radiation, UV optics

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Proceedings Article | 15 December 2020 Presentation + Paper

Presentation + Paper

Implementation of a dark hole maintenance algorithm for speckle drift in a high contrast space coronagraph

Susan Redmond, N. Jeremy Kasdin, Leonid Pogorelyuk, Remi Soummer, Laurent Pueyo, Marshall Perrin, Matthew Maclay, James Noss, Iva Laginja, Scott Will, Julia Fowler

Proceedings Volume 11443, 114432K (2020) https://doi.org/10.1117/12.2561488

KEYWORDS: Coronagraphy, Speckle, Planets, Wavefronts, Photons, Space telescopes, Adaptive optics, Detection and tracking algorithms, Deformable mirrors, Remote sensing

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

Design and pre-flight performance of SPIDER 280 GHz receivers

E. Shaw, P. A. R. Ade, S. Akers, M. Amiri, J. Austermann, J. A. Beall, D. Becker, S. J. Benton, A. Bergman, J. J. Bock, J. R. Bond, S. A. Bryan, H. C. Chiang, C. Contaldi, R. S. Domagalski, O. Doré, S. M. Duff, A. J. Duivenvoorden, H. K. Eriksen, M. Farhang, J. P. Filippini, L. M. Fissel, A. A. Fraisse, K. Freese, M. Galloway, A. E. Gambrel, N. N. Gandilo, K. Ganga, A. Grigorian, R. Gualtieri, J. Gudmundsson, M. Halpern, J. Hartley, M. Hasselfield, G. Hilton, W. Holmes, V. V. Hristov, Z. Huang, J. Hubmayr, K. D. Irwin, W. C. Jones, A. Kahn, C. L. Kuo, Z. D. Kermish, A. Lennox, J. S.-Y. Leung, S. Li, P. V. Mason, K. Megerian, L. Mocanu, L. Moncelsi, T. A. Morford, J. M. Nagy, R. Nie, M. Nolta, C. B. Netterfield, B. Osherson, I. L. Padilla, A. Rahlin, S. Redmond, C. Reintsema, M. Runyan, L. J. Romualdez, J. E. Ruhl, J. Shariff, C. Shiu, J. D. Soler, X. Song, A. Trangsrud, H. Thommesen, C Tucker, R. S. Tucker, A. D. Turner, J. Ullom, J. F. van der List, J. Van Lanen, M. Vissers, A. C. Weber, S. Wen, I. K. Wehus, D. V. Wiebe, E. Y. Young

Proceedings Volume 11453, 114532F (2020) https://doi.org/10.1117/12.2562941

KEYWORDS: Receivers, Sensors, Telescopes, Polarization, Microwave radiation

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Proceedings Article | 6 July 2018 Presentation + Paper

Presentation + Paper

Overview, design, and flight results from SuperBIT: a high-resolution, wide-field, visible-to-near-UV balloon-borne astronomical telescope

L. Javier Romualdez, Steven Benton, Anthony Brown, Paul Clark, Christopher Damaren, Tim Eifler, Aurelien Fraisse, Mathew Galloway, John Hartley, Mathilde Jauzac, William Jones, Lun Li, Thuy Vy Luu, Richard Massey, Jacqueline Mccleary, C. Barth Netterfield, Susan Redmond, Jason Rhodes, Jürgen Schmoll, Sut-Ieng Tam

Proceedings Volume 10702, 107020R (2018) https://doi.org/10.1117/12.2307754

KEYWORDS: Telescopes, Stars, Cameras, Space telescopes, Galactic astronomy, Imaging spectroscopy, Astronomy, Gyroscopes, Imaging systems, High angular resolution imaging, Exoplanetary science, Astronomical instrumentation, Astronomical instrumentation engineering, UV-Vis spectroscopy

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Proceedings Article | 6 July 2018 Paper

Paper

Auto-tuned thermal control on stratospheric balloon experiments

Susan Redmond, Steven Benton, Anthony Brown, Paul Clark, Christopher Damaren, Tim Eifler, Aurelien Fraisse, Mathew Galloway, John Hartley, Mathilde Jauzac, William Jones, Lun Li, Thuy Vy Luu, Richard Massey, Jacqueline McCleary, C. Barth Netterfield, Jason Rhodes, L. Javier Romualdez, Jürgen Schmoll, Sut-Ieng Tam

Proceedings Volume 10700, 107005R (2018) https://doi.org/10.1117/12.2312339

KEYWORDS: Telescopes, Mirrors, Space telescopes, Stratosphere, Control systems, Image quality, Optical instrument design, Thermal modeling, Computer programming

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Showing 5 of 29 publications

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