EMMANUEL HUGOT List of Publications

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1 EMMANUEL HUGOT List of Publications PUBLICATIONS, REFEERED JOURNALS Over the last ten years, on top of the time spent in the deposit of patents (requiring secret) and the time spent in prototypes development, this work also led to the publication of 16 refereed papers and 43 SPIE conference proceedings, for a total of >500 citations. Note that this criterion is not relevant in this field: the goal is not to produce the breakthrough paper but the breakthrough operational system. The ideas and work presented in the first papers led to systems that are now used routinely during observations years after. The five highlighted publications represent the most impacting work. [1] Jahn W., Ferrari M. and Hugot E. Innovative focal plane design for large space telescope using freeform mirrors, Optica (2017) [2] Muslimov E., Hugot E., Jahn W., et al Combining freeform optics and curved detectors for wide field imaging: a polynomial approach over squared aperture, Optics Express, Vol.25, 13 (2017) [3] Chauvin G. and the SPHERE consortium (inc. Hugot E.), Discovery of a warm, dusty giant planet around HIP 65426, Astronomy & Astrophysics, (2017) [4] Sauvage J.F. et al. (inc. Hugot E.) SAXO, the extreme AO system of SPHERE (I) System overview and global laboratory performance, Journal of Astronomical Optics, Instrumentation and Systems (JATIS), (2016) This is a consortium paper on the SPHERE extreme adaptive optics system, including the description of the active toric mirror we delivered and installed on sky, based on the 2008 theoretical paper listed below. This is the first time that an adaptive optics system is combined with an active mirror in its core, for means of high drifts compensations due to thermal and hygrometric variations on-site. [5] Vigan A. et al. (inc. Hugot E.) Apodization in high-contrast long-slit spectroscopy. II. Concept validation and first on-sky results with VLT/SPHERE, Astronomy & Astrophysics, (2016) [6] Vigan A. et al. (inc. Hugot E.) First light of the VLT planet finder SPHERE I. Detection and characterization of the sub-stellar companion GJ 758 B, Astronomy & Astrophysics, (2016) [7] Maire A.L. et al. (inc. Hugot E.) " First light of the VLT planet finder SPHERE II. The physical properties and the architecture of the young systems PZ Tel and HD 1160 revisited, Astronomy & Astrophysics, (2016) [8] Zurlo A. et al. (inc. Hugot E.) First light of the VLT planet finder SPHERE III. New spectrophotometry and astrometry of the HR8799 exoplanetary system, Astronomy & Astrophysics, (2016) [9] Challita Z., Hugot E. et al, Development of a freeform active mirror for an astronomy application, Optical Engineering, special edition Freeform optics (2014) This is a consortium paper led by my PhD student Z. Challita, detailing the 4-years effort led in the frame of OPTICON for the emergence of a brand new type of freeform active mirror. The paper describes the work done from the design to the realisation, assembly and performance characterisation. This unique device has been exposed on the Dutch Pavilion at the SPIE 2016 exhibit, in front of 3000 attendees. 1

2 [10] Laslandes M., Hugot E. et al, Mirror actively deformed and regulated for applications in space, Optical Engineering, special edition Space Optics (2013) This paper is closing a 3-years R&D action (MADRAS) undertaken together with the THALES group, detailing the development of a space deformable mirror, validated up to TRL4. Built in a technology transfer spirit, this activity helped the THALES group to win the CNES call for tender for the next generation of space active telescopes, currently under realisation. [11] Laslandes M., Hugot E., Ferrari M., Active Optics: deformable mirrors with a minimum number of actuators, JEOS, Vol. 7 (2012) [12] Hugot E. et al, Active Optics methods for exoplanet direct imaging. Stress polishing of supersmooth aspherics for VLT-SPHERE planet finder, Astronomy & Astrophysics 538 (2012) This paper is a Research note detailing the fabrication results of the SPHERE super-polished off-axis mirrors. It closes a 5-years development in manufacturing and testing of off-axis mirrors dedicated to high contrast imaging applications. These realisations are now used on sky at the core of SPHERE. Following this, NASA contracted the LAM for the realisation of three additional super polished off axis mirrors for their High contrast imaging platform STScI), which we delivered in [13] Hugot E. et al, Stress polishing of thin shells for adaptive secondary mirrors. Application to the Very Large Telescope deformable secondary, Astronomy & Astrophysics, 527, (2011) [14] Hugot E., M. Ferrari., G.R. Lemaitre, F. Madec, S. Vives, E. Chardin, D. Le Mignant, J.G. Cuby, Active optics for high dynamic variable curvature mirrors, Optics Letters, 34, pp , (2009) [15] Hugot E., M. Ferrari, K. El Hadi, P. Vola, J.L. Gimenez, G.R. Lemaitre, P. Rabou, K. Dohlen, P. Puget, J.L. Beuzit, N. Hubin, Active Optics: stress polishing of toric mirrors for the VLT SPHERE adaptive optics system, Applied Optics Vol.48, 15, pp (2009) [16] Hugot E., Lemaitre G.R., Ferrari M., Active optics: single actuator principle and angular thickness distribution for astigmatism compensation by elasticity, Applied Optics, Vol.47, 10, (2008) This is the theoretical paper detailing the warping of mirrors with a single actuator, that led to the active system installed on SPHERE and detailed in Sauvage et al This solution helped recovering the full XAO dynamic, by compensating instrumental drifts due to thermal and hygrometric variations. 2

3 CONFERENCE PROCEEDINGS REFEREED PAPERS The SPIE symposia on astronomical telescopes and instrumentation are one of the most important tool we have in this field to communicate on our results. Hereafter are only listed these conference papers which are the most impacting SPIE CONFERENCE ON ASTRONOMICAL TELESCOPES AND INSTRUMENTATION [1] Kjetil Dohlen, Arthur Vigan, David Mouillet, François Wildi, Jean-François Sauvage, Thierry Fusco, Jean-Luc Beuzit, Pascal Puget, David Le Mignant, Ronald Roelfsema, Johan Pragt, Hans Martin Schmid, Raffaele Gratton, Dino Mesa, Riccardo Claudi, Maud Langlois, Anne Costille, Emmanuel Hugot, Jared O'Neil, Juan Carlos Guerra, Mamadou N'Diaye, Julien Girard, Dimitri Mawet, Gerard Zins, SPHERE on-sky performance compared with budget predictions [2] Emmanuel Hugot, Wilfried Jahn, Bertrand Chambion, Liubov Nikitushkina, Christophe Gaschet, David Henry, Stephane Getin, Gaid Moulin, Marc Ferrari, Yann Gaeremynck, Flexible focal plane arrays for UVOIR wide field instrumentation [3] Sylvain Egron, Charles-Philippe Lajoie, Lucie Leboulleux, Mamadou N'Diaye, Laurent Pueyo, Élodie Choquet, Marshall D Perrin, Marie Ygouf, Vincent Michau, Aurélie Bonnefois, Thierry Fusco, Clément Escolle, Marc Ferrari, Emmanuel Hugot, Rémi Soummer, James Webb Space Telescope optical simulation testbed III: first experimental results with linear-control alignment [4] Wilfried Jahn, Marc Ferrari, Emmanuel Hugot, Innovative focal plane design for large space telescopes [5] Wilfried Jahn, Emmanuel Hugot, Thierry Fusco, Benoit Neichel, Marc Ferrari, Carlos Correia, Laurent Pueyo, Kjetil Dohlen, Sandrine Pascal, Pascal Vola, Jean-François Sauvage, Kacem El Hadi, Jean Luc Gach, Laser guide star spot shrinkage for affordable wavefront sensors [6] Sabri Lemared, Emmanuel Hugot, Zalpha Challita, Hermine Schnetler, Gabby Aitink-Kroes, Michel Marcos, Anne Costille, Kjetil Dohlen, Jean-Luc Beuzit, Jean-Gabriel Cuby, Smart warping harnesses for active mirrors and stress polishing [7] Szigfrid Farkas, Tibor Agócs, Gabby Aitink-Kroes, Felix Bettonvil, Martin Black, Emmanuel Hugot, Attila Jaskó, Hermine Schnetler, Chris Miller, Farian van Duffelen, Lars Venema, Development and final design of FAME active array [8] Gabby Aitink-Kroes, Tibor Agócs, Chris Miller, Martin Black, Szigfrid Farkas, Sabri Lemared, Felix Bettonvil, David Montgomery, Michel Marcos, Attila Jaskó, Farian van Duffelen, Zalpha Challita, Sandy Fok, Fatemeh Kiaeerad, Emmanuel Hugot, Hermine Schnetler, Lars Venema, FAME: freeform active mirror experiment [9] Jean-Francois Sauvage, Thierry Fusco, Cyril Petit, Anne Costille, David Mouillet, Jean-Luc Beuzit, Kjetil Dohlen, Markus Kasper, Marcos Suarez, Christian Soenke, Andrea Baruffolo, Bernardo Salasnich, Sylvain Rochat, Enrico Fedrigo, Pierre Baudoz, Emmanuel Hugot, Arnaud Sevin, Denis Perret, Francois Wildi, Mark Downing, Philippe Feautrier, Pascal Puget, Arthur Vigan, Jared O Neal, Julien Girard, Dimitri Mawet, Hans Martin Schmid, Ronald Roelfsema, SAXO: the extreme adaptive optics system of SPHERE (I) system overview and global laboratory performance 2014 SPIE CONFERENCE ON ASTRONOMICAL TELESCOPES AND INSTRUMENTATION [10] Emmanuel Hugot, Xin Wang, Tibor Agócs, Gerard R. Lemaitre, David Valls-Gabaud, Fast F/2 wide field distortion-free camera for far universe survey [11] Emmanuel Hugot, Lars Venema, Hermine Schnetler, Attila Jaskó, Zalpha Challita, Tibor Agócs, Gabby Aitink-Kroes, Chris Miller, William D. Taylor, Freeform active mirror experiment (FAME) [12] Emmanuel Hugot, Johan Floriot, Marc Ferrari, Fabrice Madec, Anais Bernard, Thibaut Dufour, Jean-Marc Combes, Denis Fappani, Christian Du Jeu, Stress polishing demonstrator for ELT M1 segments and industrialization [13] Clement Escolle, Emmanuel Hugot, Marie Laslandes, Thierry Fusco, Marc Ferrari, Vincent Michau, Adapting large lightweight primary mirror supports to space active optics capabilities [14] Xin Wang, Emmanuel Hugot, Anaïs Bernard, Fabrice Madec, Sabri Lemared, Active scale changer for anamorphic, distortion free, telecentric zoom system 3

4 [15] Zalpha Challita, Emmanuel Hugot, Lars Venema, Hermine Schnetler, Marc Ferrari, Jean-Gabriel Cuby, FAME: freeform active mirrors experiment: manufacturing process development [16] Attila Jaskó, Gabby Aitink-Kroes, Tibor Agócs, Lars Venema, Emmanuel Hugot, Hermine Schnetler, Evelin Bányai, Active array design for FAME: freeform active mirror experiment [17] Tibor Agócs, Gabby Kroes, Lars Venema, Emmanuel Hugot, Hermine Schnetler, Attila Jaskó, Freeform mirror based optical systems for FAME [18] Mamadou N'Diaye, Élodie Choquet, Sylvain Egron, Laurent A. Pueyo, Lucie Leboulleux, Olivier Levecq, Marshall D. Perrin, Erin M. Elliot, James K. Wallace, Emmanuel Hugot, Michel Marcos, Marc Ferrari, Chris A. Long, Rachel Anderson, Audrey DIFelice, Rémi Soummer, High contrast imager for complex aperture telescopes (HICAT): II. Design overview and first light results [19] T. Fusco, J.-F. Sauvage, C. Petit, A. Costille, K. Dohlen, D. Mouillet, J-L Beuzit, M. Kasper, M. Suarez, C. Soenke, E. Fedrigo, M. Downing, P. Baudoz, A. Sevin, D. Perret, A. Baruffolo, B. Salasnich, P. Puget, F. Feautrier, S. Rochat, T. Moulin, A. Deboulbé, E. Hugot, A. Vigan, D. Mawet, J. Girard, N. Hubin, Final performance and lesson-learned of SAXO, the VLT-SPHERE extreme AO - From early design to on-sky results 2012 SPIE CONFERENCE ON ASTRONOMICAL TELESCOPES AND INSTRUMENTATION [20] Marie Laslandes, Claire Hourtoule, Emmanuel Hugot, et al., "Space active optics: performance of a deformable mirror for in-situ wave-front correction in space telescopes", Proceedings of SPIE Vol. 8442, (2012) [21] Cyril Petit, Jean-Francois Sauvage, Arnaud Sevin, et al., "The SPHERE XAO system SAXO: integration, test, and laboratory performance", Proceedings of SPIE Vol. 8447, 84471Z (2012) [22] Marie Laslandes, Emmanuel Hugot, Marc Ferrari, "Active optics: deformation systems compensating for optical aberrations with a minimum number of actuators", Proceedings of SPIE Vol. 8450, 84500J (2012) [23] Zalpha Challita, Emmanuel Hugot, Marc Ferrari, et al., "Extremely aspheric mirrors: prototype development of an innovative manufacturing process based on active optics", Proceedings of SPIE Vol. 8450, (2012) 2011 SPIE CONFERENCE ON OPTICAL COMPLEX SYSTEMS [24] Challita, Zalpha ; Hugot, Emmanuel ; Madec, Fabrice ; Ferrari, Marc ; Le Mignant, David ; Vivès, Sébastien ; Cuby, Jean-Gabriel "Active optics : variable curvature mirrors for ELT laser guide star refocusing systems", Optical Complex Systems : OCS11. Edited by Berginc, Gérard. Proceedings of the SPIE, Volume 8172, pp A-81721A-8 (2011) [25] Laslandes, Marie ; Hugot, Emmanuel ; Ferrari, Marc ; Lemaitre, Gérard ; Liotard, Arnaud "Space Active Optics : toward optimized correcting mirrors for future large spaceborne observatories", Optical Design and Engineering IV. Edited by Mazuray, Laurent ; Wartmann, Rolf ; Wood, Andrew ; Tissot, Jean-Luc M. ; Raynor, Jeffrey M. Proceedings of the SPIE, Volume 8167, pp (2011) [26] Marie Laslandes, Johan Floriot, Marc Ferrari, Emmanuel Hugot, Nicolas Rousselet, Sébastien Vivès, Gérard Lemaitre, Jean François Carré, Marc Cayrel "Stress polishing of E-ELT segment at LAM : full scale demonstrator status", Proc. SPIE 8169, Optical Fabrication, Testing, and Metrology IV, (September 30, 2011) [27] Challita, Zalpha ; Hugot, Emmanuel ; Ferrari, Marc ; Le Mignant, David ; Vivès, Sébastien ; Cuby, Jean-Gabriel, "Extremely aspheric surfaces : toward a manufacturing process based on active optics", Proc. SPIE Volume 8169, pp (2011) 2010 SPIE CONFERENCE ON ASTRONOMICAL TELESCOPES AND INSTRUMENTATION 4

5 [28] E. Hugot, M. Ferrari, S. Vives, M. Laslandes, K. El Hadi, S. Moindrot, G. R. Lemaitre, K. Dohlen ; "On the super polishing under stress of aspherical surfaces for exoplanet detection and solar instruments", in Proc. SPIE on Astronomical telescopes and instrumentation, 2010 [29] E. Hugot, F. Madec, S. Vives, M. Ferrari, D. Le Mignant, J.-G. Cuby, "Toward high-dynamic active mirrors for LGS refocusing systems", Proc. SPIE on Astronomical telescopes and instrumentation, 2010 [30] F. Madec, D. Le Mignant, E. Chardin, E. Hugot, S. Mazzanti, J.-L. Gimenez, M. Ferrari, G. Moreaux, S. Vives, J.-G. Cuby "Development and performance of the EAGLE active optics LGS WFS refocusing system", Proc. SPIE on Astronomical telescopes and instrumentation, 2010 [31] M. Laslandes, M. Ferrari, E. Hugot, "In-flight aberrations corrections for large space telescope using active optics", Proc. SPIE on Astronomical telescopes and instrumentation, SPIE CONFERENCE ON OPTICS AND PHOTONICS [32] Cuby, J.-G., Morris, S., Parr-Burman, P., Lehnert, M., Evans, C., Fusco, T., Jagourel, P., Le Mignant, D., Myers, R., Rousset, G., Schnetler, H., Amans, J., Assemat, F., Beard, S., Cohen, M., Dipper, N., Ferrari, M., Gendron, E., Gimenez, J., Hastings, P., Hubert, Z., Hugot, E., Laporte, P., Leroux, B., Madec, F., McGregor, H., Morris, T., Neichel, B., Puech, M., Robert, C., Rolt, S., Swinbank, M., Talbot, G., Taylor, W., Vidal, F., Vivès, S., Vola, P., Wells, M.,"EAGLE : an MOAO fed multi-ifu working in the NIR on the E-ELT," in Proc. SPIE, 7439 (2009) 2008 SPIE CONFERENCE ON ASTRONOMICAL TELESCOPES AND INSTRUMENTATION [33] E. Hugot, M. Ferrari, K. El Hadi, K. Dohlen, P. Vola, N. Ernst, G.R. Lemaître, P. Montiel ; 2008 ; "Stress polishing of Toric Mirrors for the VLT-SPHERE common path" ; in SPIE Proc. on Astronomical Telescopes and instrumentation ; 7018 (2008) [34] E. Hugot, M. Ferrari, G.R. Lemaître, F. Madec ; 2008 ; "Active Optics Theory : Compensation of aberration using the single actuator principle" ; in SPIE Proc. on Astronomical Telescopes and instrumentation ; 7018 (2008) [35] F. Madec, E. Hugot, J.L. Gimenez, F. Tracol, M. Ferrari, P. Vola, S. Vives, K. El Hadi, G. Moreaux, E. Prieto, J.G. Cuby ; 2008 ; "An Active Optics concept for the multi-object spectrograph EAGLE" ; in SPIE Proc. on Astronomical Telescopes and instrumentation ; 7018 (2008) [36] Cuby, J.-G., Morris, S., Bryson, I., Lehnert, M., Evans, C., Fusco, T., Jagourel, P., Myers, R., Rousset, G., Schnetler, H., Amans, J.-P., Allington-Smith, J., Assemat, F., Beard, S., Chemla, F., Content, R., Dipper, N., Ferrari, M., Gendron, E., Gimenez, J.-L., Hastings, P., Hubert, Z., Hugot, E., Laporte, P., Leroux, B., Madec, F., Neichel, B., Morris, T., Prieto, E., Swinbank, M., Talbot, G., Taylor, W., Vidal, F., Vivès, S., Vola, P. and Wells, M., ; 2008 ; "EAGLE : an MOAO fed multi-ifu in the NIR on the E- ELT" ; in SPIE Proc. on Astronomical Telescopes and instrumentation ; 7014 (2008) 2006 SPIE CONFERENCE ON ASTRONOMICAL TELESCOPES AND INSTRUMENTATION [37] E. Hugot, G.R. Lemaître, M. Ferrari ; 2006 ; Toric mirrors and Active Optics : degenerated configuration for spherical monomode deformable mirrors, in Proc. SPIE Conf. on Astronomical Telescopes and Instrumentation ; 6273, 62732N (2006) [38] E. Hugot, M. Ferrari, D. Fappani, R. Arsenault ; 2006 ; Active polishing of a 2mm Thin Shell for large adaptive secondary mirrors, in Proc. SPIE Conf. on Astronomical Telescopes and Instrumentation ; 6272, 62724Z (2006) 5

6 [39] F. Madec, E. Prieto, E. Blanc, E. Hugot, S. Vives, M. Ferrari, J.-G. Cuby ; 2006 ; New beam steering mirror concept and metrology system for multi-ifu, in Proc. SPIE Conf. on Astronomical Telescopes and Instrumentation ; 6273, 62731X (2006) [40] J.-G. Cuby, E. Prieto, M. Ferrari, E. Hugot, J. Bland-Hawthorn, S. Blais-Ouellette ; 2006 ; On the performance of ELT instrumentation, in Proc. SPIE Conf. on Astronomical Telescopes and Instrumentation ; 6269 (2006) [41] F. Madec, E. Hugot, P. Vola, E. Prieto, M. Ferrari, J.G. Cuby, Active Beam Sterring Mirror concept for multi-ifu instrument, in ESO Conf. Towards the European Extremely Large Telescope, Marseille, France (2006) [42] E. Hugot, M. Ferrari, G.R. Lemaitre, D. Fappani, J.F. Carré, VLT-Deformable Secondary Mirror: Thin shell manufacturing, in ESO Conf. Towards the European Extremely Large Telescope, Marseille, France (2006) [43] M. Ferrari, G.R. Lemaître, E. Hugot, New active optics techniques for large off-axis segments manufacturing, in ESO Conf. Towards the European Extremely Large Telescope, Marseille, France (2006) 6