Ultraviolet reflective grating performance verification test setup and simulations for the Aspera SmallSat mission

Jessica S. Li; Rebecca Su; Sumedha Uppnor; Haeun Chung; Jason Corliss; Simran Agarwal; Aafaque R. Khan; Elijah Garcia; Naomi Yescas; Daniel Truong; Carlos Vargas; Erika Hamden; Ramona Augustin; Peter Behroozi; Joe Burchett; Heejoo Choi; Lauren Corlies; Greyson Davis; Ralf-Jürgen Dettmar; Ewan Douglas; Carl Hergenrother; Keri Hoadley; J. Christopher Howk; Miriam Keppler; Daewook Kim; Nicole Melso; David Schiminovich; Fernando Coronado; Giulia Ghidoli; Alfred Goodwin; Dave Hamara; Walter Harris; Karl Harshman; John Kidd; Tom McMahon; Jamison Noenickx; Gabe Noriega; Ryan Pecha; Cork Sauve; Sanford Selznick; Hannah Tanquary; Bill Verts; Ellie Wolcott; Dennis Zaritsky

doi:10.1117/12.3017215

21 August 2024 Ultraviolet reflective grating performance verification test setup and simulations for the Aspera SmallSat mission

Jessica S. Li, Rebecca Su, Sumedha Uppnor, Haeun Chung, Jason Corliss, Simran Agarwal, Aafaque R. Khan, Elijah Garcia, Naomi Yescas, Daniel Truong, Carlos Vargas, Erika Hamden, Ramona Augustin, Peter Behroozi, Joe Burchett, Heejoo Choi, Lauren Corlies, Greyson Davis, Ralf-Jürgen Dettmar, Ewan Douglas, Carl Hergenrother, Keri Hoadley, J. Christopher Howk, Miriam Keppler, Daewook Kim, Nicole Melso, David Schiminovich, Fernando Coronado, Giulia Ghidoli, Alfred Goodwin, Dave Hamara, Walter Harris, Karl Harshman, John Kidd, Tom McMahon, Jamison Noenickx, Gabe Noriega, Ryan Pecha, Cork Sauve, Sanford Selznick, Hannah Tanquary, Bill Verts, Ellie Wolcott, Dennis Zaritsky

Author Affiliations +

Proceedings Volume 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray; 130932W (2024) https://doi.org/10.1117/12.3017215
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

Aspera is a NASA Pioneers SmallSat mission designed to detect and map the O VI emission (1032 Å) through long-slit spectroscopy in the halos of nearby galaxies for the first time. The spectrograph utilizes toroidal gratings with multilayer coatings of aluminum, lithium fluoride, and magnesium fluoride that optimize their throughput in the extreme ultraviolet EUV waveband of 1030 to 1040 Å. We discuss the grating verification test setup design, including optical alignment and reference measurement setup. We also present grating testing and grating efficiency simulation results using the target grating groove profile and the multi-layer coatings.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Jessica S. Li, Rebecca Su, Sumedha Uppnor, Haeun Chung, Jason Corliss, Simran Agarwal, Aafaque R. Khan, Elijah Garcia, Naomi Yescas, Daniel Truong, Carlos Vargas, Erika Hamden, Ramona Augustin, Peter Behroozi, Joe Burchett, Heejoo Choi, Lauren Corlies, Greyson Davis, Ralf-Jürgen Dettmar, Ewan Douglas, Carl Hergenrother, Keri Hoadley, J. Christopher Howk, Miriam Keppler, Daewook Kim, Nicole Melso, David Schiminovich, Fernando Coronado, Giulia Ghidoli, Alfred Goodwin, Dave Hamara, Walter Harris, Karl Harshman, John Kidd, Tom McMahon, Jamison Noenickx, Gabe Noriega, Ryan Pecha, Cork Sauve, Sanford Selznick, Hannah Tanquary, Bill Verts, Ellie Wolcott, and Dennis Zaritsky "Ultraviolet reflective grating performance verification test setup and simulations for the Aspera SmallSat mission", Proc. SPIE 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, 130932W (21 August 2024); https://doi.org/10.1117/12.3017215

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