Conference proceeding
Realignment and performance verification of two-mirror focal corrector optics for FIREBall-2 using computer generated hologram (CGH)
Vol.13093, pp.130932V-130932V-7
08/21/2024
DOI: 10.1117/12.3020834
Abstract
The Faint Intergalactic-medium Redshifted Emission Balloon (FB-2), a collaborative NASA/CNES suborbital balloon telescope, targets the mapping of faint UV emissions from the circumgalactic medium around low-redshift galaxies. The initial September 2018 flight encountered challenges, including a balloon breach and subsequent damage during landing, impacting the two large telescope mirrors and the critical focal corrector. Likely due to landing shock, the focal corrector experienced misalignment beyond tolerance, necessitating reevaluation and realignment. This paper outlines a comprehensive approach to realigning the focal corrector using a computer-generated hologram (CGH) and a Zygo interferometer for feedback. The CGH enables precise alignment corrections in various degrees of freedom, while interferometer feedback aids in reducing aberrations. The paper details the methodology for optical alignment, surface measurement, and performance evaluation of the focal corrector, emphasizing its successful integration into the FB-2 spectrograph in early 2023 for the September 2023 flight.
Details
- Title: Subtitle
- Realignment and performance verification of two-mirror focal corrector optics for FIREBall-2 using computer generated hologram (CGH)
- Creators
- Simran Agarwal - University of ArizonaAafaque R. Khan - University of ArizonaHarrison Bradley - University of ArizonaHaeun Chung - University of ArizonaIpek Nazende Kerkeser - University of ArizonaOlivia Jones - University of ArizonaErika Hamden - University of ArizonaDavid Schiminovich - Columbia UniversityBruno Milliard - Lab. d'Astrophysique de Marseille (France)Vincent Picouet - Cahill Ctr. for Astrophysics, California Institute of Technology (United States)Drew M. Miles - Cahill Ctr. for Astrophysics, California Institute of Technology (United States)Ignacio Cevallos-Aleman - Columbia UniversityZeren Lin - Cahill Ctr. for Astrophysics, California Institute of Technology (United States)Jessica S. Li - University of ArizonaNicole Melso - Columbia UniversityChristopher Martin - Cahill Ctr. for Astrophysics, California Institute of Technology (United States)Keri Hoadley - University of IowaGillian Kyne - Jet Propulsion LaboratoryShouleh Nikzad - Jet Propulsion LaboratoryDavid Valls-Gabaud - Observatoire de Paris
- Contributors
- Jan-Willem A. den Herder (Editor) - SRON Netherlands Institute for Space ResearchShouleh Nikzad (Editor) - Jet Propulsion LaboratoryKazuhiro Nakazawa (Editor) - Nagoya University
- Resource Type
- Conference proceeding
- Publication Details
- Vol.13093, pp.130932V-130932V-7
- Publisher
- SPIE
- DOI
- 10.1117/12.3020834
- ISSN
- 0277-786X
- eISSN
- 1996-756X
- Language
- English
- Date published
- 08/21/2024
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984721239702771
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