Dr. John W. Appel
Associate Research Scientist at Johns Hopkins Univ
SPIE Involvement:
Author
Publications (23)

Proceedings Article | 16 August 2024 Poster + Paper
Rui Shi, Michael Brewer, Carol Yan Yan Chan, David Chuss, Jullianna Denes Couto, Joseph Eimer, John Karakla, Koji Shukawa, Deniz A. Valle, John Appel, Charles Bennett, Sumit Dahal, Thomas Essinger-Hileman, Tobias Marriage, Matthew Petroff, Karwan Rostem, Edward Wollack
Proceedings Volume 13102, 131021T (2024) https://doi.org/10.1117/12.3016346
KEYWORDS: Sensors, Mirrors, Telescopes, Polarization, Design, Modulation, Reflection, Profilometers, Servomechanisms, Mirror surfaces

Proceedings Article | 31 August 2022 Poster + Paper
Rahul Datta, Michael Brewer, Jullianna Couto, Joseph Eimer, Yunyang Li, Zhilei Xu, John Appel, Ricardo Bustos, David Chuss, Joseph Cleary, Sumit Dahal, Thomas Essinger-Hileman, Jeffrey Iuliano, Tobias Marriage, Carolina Nunez, Matthew Petroff, Karwan Rostem, Duncan Watts, Edward Wollack
Proceedings Volume 12190, 121902S (2022) https://doi.org/10.1117/12.2630649
KEYWORDS: Telescopes, Polarization, Receivers, Calibration, Optical testing, Physics

Proceedings Article | 31 August 2022 Poster + Paper
Carolina Nunez, John Appel, Sarah Marie Bruno, Rahul Datta, Aamir Ali, Charles Bennett, Sumit Dahal, Jullianna Denes Couto, Kevin Denis, Joseph Eimer, Francisco Espinoza, Tom Essinger-Hileman, Kyle Helson, Jeffrey Iuliano, Tobias Marriage, Carolina Morales Peréz, Deniz Augusto Nunes Valle, Matthew Petroff, Karwan Rostem, Rui Shi, Duncan Watts, Edward Wollack, Zhilei Xu
Proceedings Volume 12190, 121901J (2022) https://doi.org/10.1117/12.2630081
KEYWORDS: Sensors, Bolometers, Telescopes, Staring arrays, Silicon, Polarization, Microwave radiation, Wafer-level optics, Detector arrays, Astronomical instrumentation, Detector development, Superconducting detectors, Astronomical telescopes

Proceedings Article | 31 August 2022 Poster + Paper
Proceedings Volume 12190, 121902Q (2022) https://doi.org/10.1117/12.2629723
KEYWORDS: Polarization, Modulation, Sensors, Telescopes, Data modeling, Interference (communication), Demodulation, Astronomy, Theoretical astronomy, Physics

Proceedings Article | 31 August 2022 Poster + Paper
Joseph Eimer, Michael Brewer, David Chuss, John Karakla, Rui Shi, John Appel, Charles Bennett, Joseph Cleary, Sumit Dahal, Rahul Datta, Thomas Essinger-Hileman, Tobias Marriage, Carolina Núñez, Matthew Petroff, Duncan Watts, Edward Wollack, Zhilei Xu
Proceedings Volume 12190, 121901N (2022) https://doi.org/10.1117/12.2630637
KEYWORDS: Polarization, Modulators, Wave plates, Modulation, Servomechanisms, Telescopes

Showing 5 of 23 publications
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