Optical alignment of contamination-sensitive Far-Ultraviolet spectrographs for Aspera SmallSat mission

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

doi:10.1117/12.3020822

Optical alignment of contamination-sensitive Far-Ultraviolet spectrographs for Aspera SmallSat mission

Aafaque R. Khan, Erika Hamden, Haeun Chung, Heejoo Choi, Daewook Kim, Nicole Melso, Keri Hoadley, Carlos J. Vargas, Daniel Truong, Elijah Garcia, Bill Verts, Fernando Coronado, Jamison Noenickx, Jason Corliss, Hannah Tanquary, Tom McMahon, Dave Hamara, Simran Agarwal, Ramona Augustin, Peter BehrooziHarrison Bradley, Trenton Brendel, Joe Burchett, Jasmine Martinez Castillo, Jacob Chambers, Lauren Corlies, Greyson Davis, Ralf Jürgen Dettmar, Ewan Douglas, Giulia Ghidoli, Alfred Goodwin, Walter Harris, Carl Hergenrother, J. Christopher Howk, Miriam Keppler, Nazende Ipek Kerkeser, John N. Kidd, Jessica S. Li, Gabe Noriega, Sooseong Park, Ryan Pecha, Cork Sauve, David Schiminovich, Sanford Selznick, Oswald Siegmund, Rebecca Su, Sumedha Uppnor, Jacob Vider, Ellie Wolcott, Naomi Yescas, Dennis F Zaritsky

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

Aspera is a NASA Astrophysics Pioneers SmallSat mission designed to study diffuse Ovi emission from the warm-hot phase gas in the halos of nearby galaxies. Its payload consists of two identical Rowland Circle-type long-slit spectrographs, sharing a single MicroChannel plate detector. Each spectrograph channel consists of an off-axis parabola primary mirror and a toroidal diffraction grating optimized for the 1013-1057 Å bandpass. Despite the simple configuration, the optical alignment/integration process for Aspera is challenging due to tight optical alignment tolerances, driven by the compact form factor, and the contamination sensitivity of the Far-Ultraviolet optics and detectors. In this paper, we discuss implementing a novel multi-phase approach to meet these requirements using state-of-the-art optical metrology tools. For coarsely positioning the optics we use a blue-laser 3D scanner while the fine alignment is done with a Zygo interferometer and a custom computer-generated hologram. The detector focus requires iterative in-vacuum alignment using a Vacuum UV collimator. The alignment is done in a controlled cleanroom facility at the University of Arizona.

Original language	English (US)
Title of host publication	Space Telescopes and Instrumentation 2024
Subtitle of host publication	Ultraviolet to Gamma Ray
Editors	Jan-Willem A. den Herder, Shouleh Nikzad, Kazuhiro Nakazawa
Publisher	SPIE
ISBN (Electronic)	9781510675094
DOIs	https://doi.org/10.1117/12.3020822
State	Published - 2024
Event	Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray - Yokohama, Japan Duration: Jun 16 2024 → Jun 21 2024

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	13093
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray
Country/Territory	Japan
City	Yokohama
Period	6/16/24 → 6/21/24

Keywords

3D Scanner
Aspera
Circumgalactic Medium
Computer Generated Holograms
Contamination Control
Far Ultraviolet Optics
NASA Astrophysics Pioneers
Optical Alignment
Optical Metrology

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.3020822

Cite this

Khan, A. R., Hamden, E., Chung, H., Choi, H., Kim, D., Melso, N., Hoadley, K., Vargas, C. J., Truong, D., Garcia, E., Verts, B., Coronado, F., Noenickx, J., Corliss, J., Tanquary, H., McMahon, T., Hamara, D., Agarwal, S., Augustin, R., ... Zaritsky, D. F. (2024). Optical alignment of contamination-sensitive Far-Ultraviolet spectrographs for Aspera SmallSat mission. In J.-W. A. den Herder, S. Nikzad, & K. Nakazawa (Eds.), Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray Article 130930A (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 13093). SPIE. https://doi.org/10.1117/12.3020822

Optical alignment of contamination-sensitive Far-Ultraviolet spectrographs for Aspera SmallSat mission. / Khan, Aafaque R.; Hamden, Erika ; Chung, Haeun et al.
Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray. ed. / Jan-Willem A. den Herder; Shouleh Nikzad; Kazuhiro Nakazawa. SPIE, 2024. 130930A (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 13093).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Khan, AR, Hamden, E , Chung, H , Choi, H , Kim, D, Melso, N, Hoadley, K, Vargas, CJ, Truong, D, Garcia, E, Verts, B, Coronado, F, Noenickx, J, Corliss, J, Tanquary, H, McMahon, T, Hamara, D, Agarwal, S, Augustin, R, Behroozi, P, Bradley, H, Brendel, T, Burchett, J, Castillo, JM, Chambers, J, Corlies, L, Davis, G, Dettmar, RJ, Douglas, E, Ghidoli, G, Goodwin, A, Harris, W, Hergenrother, C, Howk, JC, Keppler, M, Kerkeser, NI, Kidd, JN, Li, JS, Noriega, G, Park, S, Pecha, R, Sauve, C, Schiminovich, D, Selznick, S, Siegmund, O, Su, R, Uppnor, S, Vider, J, Wolcott, E, Yescas, N & Zaritsky, DF 2024, Optical alignment of contamination-sensitive Far-Ultraviolet spectrographs for Aspera SmallSat mission. in J-WA den Herder, S Nikzad & K Nakazawa (eds), Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray., 130930A, Proceedings of SPIE - The International Society for Optical Engineering, vol. 13093, SPIE, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, Yokohama, Japan, 6/16/24. https://doi.org/10.1117/12.3020822

Khan AR, Hamden E , Chung H , Choi H , Kim D, Melso N et al. Optical alignment of contamination-sensitive Far-Ultraviolet spectrographs for Aspera SmallSat mission. In den Herder JWA, Nikzad S, Nakazawa K, editors, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray. SPIE. 2024. 130930A. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.3020822

Khan, Aafaque R. ; Hamden, Erika ; Chung, Haeun et al. / Optical alignment of contamination-sensitive Far-Ultraviolet spectrographs for Aspera SmallSat mission. Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray. editor / Jan-Willem A. den Herder ; Shouleh Nikzad ; Kazuhiro Nakazawa. SPIE, 2024. (Proceedings of SPIE - The International Society for Optical Engineering).

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title = "Optical alignment of contamination-sensitive Far-Ultraviolet spectrographs for Aspera SmallSat mission",

abstract = "Aspera is a NASA Astrophysics Pioneers SmallSat mission designed to study diffuse Ovi emission from the warm-hot phase gas in the halos of nearby galaxies. Its payload consists of two identical Rowland Circle-type long-slit spectrographs, sharing a single MicroChannel plate detector. Each spectrograph channel consists of an off-axis parabola primary mirror and a toroidal diffraction grating optimized for the 1013-1057 {\AA} bandpass. Despite the simple configuration, the optical alignment/integration process for Aspera is challenging due to tight optical alignment tolerances, driven by the compact form factor, and the contamination sensitivity of the Far-Ultraviolet optics and detectors. In this paper, we discuss implementing a novel multi-phase approach to meet these requirements using state-of-the-art optical metrology tools. For coarsely positioning the optics we use a blue-laser 3D scanner while the fine alignment is done with a Zygo interferometer and a custom computer-generated hologram. The detector focus requires iterative in-vacuum alignment using a Vacuum UV collimator. The alignment is done in a controlled cleanroom facility at the University of Arizona.",

keywords = "3D Scanner, Aspera, Circumgalactic Medium, Computer Generated Holograms, Contamination Control, Far Ultraviolet Optics, NASA Astrophysics Pioneers, Optical Alignment, Optical Metrology",

author = "Khan, {Aafaque R.} and Erika Hamden and Haeun Chung and Heejoo Choi and Daewook Kim and Nicole Melso and Keri Hoadley and Vargas, {Carlos J.} and Daniel Truong and Elijah Garcia and Bill Verts and Fernando Coronado and Jamison Noenickx and Jason Corliss and Hannah Tanquary and Tom McMahon and Dave Hamara and Simran Agarwal and Ramona Augustin and Peter Behroozi and Harrison Bradley and Trenton Brendel and Joe Burchett and Castillo, {Jasmine Martinez} and Jacob Chambers and Lauren Corlies and Greyson Davis and Dettmar, {Ralf J{\"u}rgen} and Ewan Douglas and Giulia Ghidoli and Alfred Goodwin and Walter Harris and Carl Hergenrother and Howk, {J. Christopher} and Miriam Keppler and Kerkeser, {Nazende Ipek} and Kidd, {John N.} and Li, {Jessica S.} and Gabe Noriega and Sooseong Park and Ryan Pecha and Cork Sauve and David Schiminovich and Sanford Selznick and Oswald Siegmund and Rebecca Su and Sumedha Uppnor and Jacob Vider and Ellie Wolcott and Naomi Yescas and Zaritsky, {Dennis F}",

note = "Publisher Copyright: {\textcopyright} 2024 SPIE.; Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray ; Conference date: 16-06-2024 Through 21-06-2024",

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language = "English (US)",

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T1 - Optical alignment of contamination-sensitive Far-Ultraviolet spectrographs for Aspera SmallSat mission

AU - Khan, Aafaque R.

AU - Hamden, Erika

AU - Chung, Haeun

AU - Choi, Heejoo

AU - Kim, Daewook

AU - Melso, Nicole

AU - Hoadley, Keri

AU - Vargas, Carlos J.

AU - Truong, Daniel

AU - Garcia, Elijah

AU - Verts, Bill

AU - Coronado, Fernando

AU - Noenickx, Jamison

AU - Corliss, Jason

AU - Tanquary, Hannah

AU - McMahon, Tom

AU - Hamara, Dave

AU - Agarwal, Simran

AU - Augustin, Ramona

AU - Behroozi, Peter

AU - Bradley, Harrison

AU - Brendel, Trenton

AU - Burchett, Joe

AU - Castillo, Jasmine Martinez

AU - Chambers, Jacob

AU - Corlies, Lauren

AU - Davis, Greyson

AU - Dettmar, Ralf Jürgen

AU - Douglas, Ewan

AU - Ghidoli, Giulia

AU - Goodwin, Alfred

AU - Harris, Walter

AU - Hergenrother, Carl

AU - Howk, J. Christopher

AU - Keppler, Miriam

AU - Kerkeser, Nazende Ipek

AU - Kidd, John N.

AU - Li, Jessica S.

AU - Noriega, Gabe

AU - Park, Sooseong

AU - Pecha, Ryan

AU - Sauve, Cork

AU - Schiminovich, David

AU - Selznick, Sanford

AU - Siegmund, Oswald

AU - Su, Rebecca

AU - Uppnor, Sumedha

AU - Vider, Jacob

AU - Wolcott, Ellie

AU - Yescas, Naomi

AU - Zaritsky, Dennis F

PY - 2024

Y1 - 2024

N2 - Aspera is a NASA Astrophysics Pioneers SmallSat mission designed to study diffuse Ovi emission from the warm-hot phase gas in the halos of nearby galaxies. Its payload consists of two identical Rowland Circle-type long-slit spectrographs, sharing a single MicroChannel plate detector. Each spectrograph channel consists of an off-axis parabola primary mirror and a toroidal diffraction grating optimized for the 1013-1057 Å bandpass. Despite the simple configuration, the optical alignment/integration process for Aspera is challenging due to tight optical alignment tolerances, driven by the compact form factor, and the contamination sensitivity of the Far-Ultraviolet optics and detectors. In this paper, we discuss implementing a novel multi-phase approach to meet these requirements using state-of-the-art optical metrology tools. For coarsely positioning the optics we use a blue-laser 3D scanner while the fine alignment is done with a Zygo interferometer and a custom computer-generated hologram. The detector focus requires iterative in-vacuum alignment using a Vacuum UV collimator. The alignment is done in a controlled cleanroom facility at the University of Arizona.

AB - Aspera is a NASA Astrophysics Pioneers SmallSat mission designed to study diffuse Ovi emission from the warm-hot phase gas in the halos of nearby galaxies. Its payload consists of two identical Rowland Circle-type long-slit spectrographs, sharing a single MicroChannel plate detector. Each spectrograph channel consists of an off-axis parabola primary mirror and a toroidal diffraction grating optimized for the 1013-1057 Å bandpass. Despite the simple configuration, the optical alignment/integration process for Aspera is challenging due to tight optical alignment tolerances, driven by the compact form factor, and the contamination sensitivity of the Far-Ultraviolet optics and detectors. In this paper, we discuss implementing a novel multi-phase approach to meet these requirements using state-of-the-art optical metrology tools. For coarsely positioning the optics we use a blue-laser 3D scanner while the fine alignment is done with a Zygo interferometer and a custom computer-generated hologram. The detector focus requires iterative in-vacuum alignment using a Vacuum UV collimator. The alignment is done in a controlled cleanroom facility at the University of Arizona.

KW - 3D Scanner

KW - Aspera

KW - Circumgalactic Medium

KW - Computer Generated Holograms

KW - Contamination Control

KW - Far Ultraviolet Optics

KW - NASA Astrophysics Pioneers

KW - Optical Alignment

KW - Optical Metrology

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U2 - 10.1117/12.3020822

DO - 10.1117/12.3020822

M3 - Conference contribution

AN - SCOPUS:85207643645

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Space Telescopes and Instrumentation 2024

A2 - den Herder, Jan-Willem A.

A2 - Nikzad, Shouleh

A2 - Nakazawa, Kazuhiro

PB - SPIE

T2 - Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray

Y2 - 16 June 2024 through 21 June 2024

ER -

Optical alignment of contamination-sensitive Far-Ultraviolet spectrographs for Aspera SmallSat mission

Abstract

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Keywords

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