Mr. Adam B. Johnson Profile

Adam B. Johnson

SPIE Involvement:

Author

Publications (4)

Proceedings Article | 30 August 2022 Presentation + Paper

Deployment of focal plane WFS technologies on 8-m telescopes: from the Subaru SPIDERS pathfinder, to the facility-class GPI 2.0 CAL2 system

Christian Marois, Olivier Lardière, William Thompson, Garima Singh, Adam Johnson, Tim Hardy, Joeleff Fitzsimmons, Benjamin Gerard, Suresh Sivanandam, Simon Thibault, Dmitry Savransky, Colin Bradley, Rebecca Jensen-Clem, Mathieu Demers, Qiang Fu, Wolfgang Heidrich, Mamadou N'Diaye

Proceedings Volume 12185, 121851Y (2022) https://doi.org/10.1117/12.2630564

KEYWORDS: Telescopes, Exoplanets, Wavefront sensors, Stars, Wavefronts, Gemini Planet Imager, Speckle, Imaging systems, Cameras, Adaptive optics

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Proceedings Article | 30 August 2022 Poster + Paper

Blinking the fringes: initial development and results of the Ultra-Low Speed Optical Chopper for the Self-Coherent Camera

Adam Johnson, Christian Marois, Darryl Gamroth, Joeleff Fitzsimmons, Olivier Lardière, William Thompson, Garima Singh, Colin Bradley

Proceedings Volume 12185, 1218575 (2022) https://doi.org/10.1117/12.2630406

KEYWORDS: Stars, Imaging systems, Sensors, Optical choppers, Mechanical engineering, Cameras, Prototyping, Control systems, Optical instrument design, Wavefronts, Exoplanets

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Proceedings Article | 30 August 2022 Poster + Paper

Optical design of SPIDERS, a Subaru Pathfinder Instrument for Detecting Exoplanets and Retrieving Spectra

Olivier Lardière, Christian Marois, William Thompson, Garima Singh, Adam Johnson, Joeleff Fitzsimmons, Tim Hardy, Mamadou N'diaye, Wolfgang Heidrich, Qiang Fu, Denis Brousseau, Simon Thibault

Proceedings Volume 12185, 1218547 (2022) https://doi.org/10.1117/12.2629644

KEYWORDS: Cameras, Mirrors, Telescopes, Adaptive optics, Optical design, Wavefront sensors, Exoplanets, Coherence imaging

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Proceedings Article | 30 August 2022 Poster + Paper

Pupil-plane LLOWFS simulation and laboratory results from NEW-EARTH’s high-contrast imaging testbed

Garima Singh, William Thompson, Olivier Lardière, Christian Marois, Mamadou N'Diaye, Adam Johnson, Jean-Pierre Véran, Glen Herriot, Benjamin Gerard, Qiang Fu, Wolfgang Heidrich

Proceedings Volume 12185, 1218553 (2022) https://doi.org/10.1117/12.2627977

KEYWORDS: Gemini Planet Imager, Coronagraphy, Sensors, Calibration, Exoplanets, Adaptive optics, Wavefront sensors, Wavefronts, Device simulation, Cameras

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