Comptes Rendus
no. 3-4
Shaped pupil coronagraphy
[Coronographie à pupille binaires]
N. Jeremy Kasdin1  ; Robert J. Vanderbei2  ; Ruslan Belikov1
1 Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544, USA
2 Operations Research and Financial Engineering, Princeton University, Princeton, NJ 08544, USA
Comptes Rendus. Physique, Volume 8 (2007) no. 3-4, pp. 312-322.

Notre groupe à Princeton se focalise sur l'étude de coronographes à pupille binaires dans le contexte de l'imagerie à très haut contraste et de la détection d'exo-planètes. Nous étudions en parallèle leur application à des projets spatiaux et à des telescopes conventionnels. Dans cet article, nous introduisons la théorie nécessaire à la conception de tels masques, puis passons en revue différentes familles de diaphragmes capables de produire un contraste de 10 ordres de grandeur. Nous décrivons ensuite la fabrication de ces pupilles binaires et nous présentons nos validations expérimentales, avec et sans controle de front d'onde. Nous discutons les facteurs limitant le contraste au sein de notre banc d'essai et nos projets pour les éliminer.

At Princeton we have been studying shaped pupil coronagraphs for high contrast imaging and planet finding. These will find applications in both ground and space imaging. In this article we summarize the design procedure for shaped pupils and review the various families of designs we have found. We describe the manufacturing processes we have used to make free standing shaped pupil masks and review our most recent laboratory results with and without wavefront control. We also discuss the factors limiting high contrast in the laboratory and our plans for mitigating them.

Publié le :
DOI : 10.1016/j.crhy.2007.02.009
Keywords: Coronagraphy, Apodization, Shaped pupil, High contrast imaging
Mot clés : Coronographie, Apodisation, Pupillle binaires, Imagerie à fort contraste
N. Jeremy Kasdin 1 ; Robert J. Vanderbei 2 ; Ruslan Belikov 1

1 Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544, USA
2 Operations Research and Financial Engineering, Princeton University, Princeton, NJ 08544, USA 
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N. Jeremy Kasdin; Robert J. Vanderbei; Ruslan Belikov. Shaped pupil coronagraphy. Comptes Rendus. Physique, Volume 8 (2007) no. 3-4, pp. 312-322. doi : 10.1016/j.crhy.2007.02.009. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2007.02.009/

[1] P. Nisenson; C. Papaliolios Detection of earth-like planets using apodized telescopes, The Astrophysical Journal, Volume 548 (2001) no. 2, p. L201-L205

[2] D. Slepian Analytic solution of two apodization problems, Journal of the Optical Society of America, Volume 55 (1965) no. 9, pp. 1110-1115

[3] N.J. Kasdin; R.J. Vanderbei; M.G. Littman; D.N. Spergel Optimal one-dimensional apodizations and shaped pupils for planet finding coronagraphy, Applied Optics, Volume 44 (2005) no. 7, pp. 1117-1128

[4] R.J. Vanderbei LOQO user's manual—version 3.10, Optimization Methods and Software, Volume 12 (1999), pp. 485-514

[5] R.J. Vanderbei; N.J. Kasdin; D.N. Spergel Rectangular-mask coronagraphs for high-contrast imaging, Astrophysical Journal, Volume 615 ( November 1, 2004 )

[6] N.J. Kasdin; R.J. Vanderbei; D.N. Spergel; M.G. Littman Extrasolar planet finding via optimal apodized-pupil and shaped-pupil coronagraphs, The Astrophysical Journal, Volume 582 ( January 2003 ), pp. 1147-1161

[7] R.J. Vanderbei; D.N. Spergel; N.J. Kasdin Spiderweb masks for high contrast imaging, Astrophysical Journal, Volume 590 ( June 10, 2003 ), pp. 593-603

[8] R.J. Vanderbei; D.N. Spergel; N.J. Kasdin Circularly symmetric apodization via starshaped masks, Astrophysical Journal, Volume 599 ( December 10, 2003 ) no. 1, pp. 686-694

[9] K. Balasubramanian, P.M. Echternach, M.R. Dickie, R.E. Muller, V.E. White, D.J. Hoppe, S.B. Shaklan, R. Belikov, N.J. Kasdin, Fabrication and characteristics of free-standing shaped pupil masks for tpf-coronagraph, in: Proceedings of the SPIE Astronomical Telescopes and Instrumentation, number 130 in 6265, 2006

[10] D.P. Ceperley, A.R. Neureuther, M.D. Lieber, N.J. Kasdin, Stray-light sources from pupil mask edges and mitigation techniques for the tpf coronagraph, in: Proceedings of the SPIE Astronomical Telescopes and Instrumentation, number 60 in 6271, 2006

[11] M.D. Lieber, A.R. Neurether, D.P. Ceperley, N.J. Kasdin, Evaluating the end-to-end performance of tpf-c with vector propagation models and wavefront control, in: Proceedings of the SPIE Conference on Optics and Photonics, number 20 in 5905, 2005

[12] R. Belikov, A. Give'on, M.A. Carr, J.T. Trauger, F. Shi, K. Balasubramanian, A.C. Kuhnert, N.J. Kasdin, Toward 1010 contrast for terrestrial exoplanet detection: demonstration of extreme wavefront correction in a shaped-pupil coronagraph, in: Proceedings of the SPIE Astronomical Telescopes and Instrumentation, number 42 in 6265, 2006

[13] J.T. Trauger, C. Burrows, B. Gordon, J.J. Green, A.E. Lowman, D. Moody, A.F. Niessner, F. Shi, D. Wilson, Coronagraph contrast demonstration with the high-contrast imaging testbed, in: Proceedings of SPIE Conference on Astronomical Telescopes and Instrumentation, number 1330-1336 in 5487, 2004

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