Dr. Stephen Watson Profile

Dr. Stephen Watson

at UK Astronomy Technology Ctr

SPIE Involvement:

Author

Publications (23)

Proceedings Article | 19 July 2024 Poster

MOONS: multi object spectroscopy for the VLT: performance of the rotating front-end

Stephen Watson, Alexandre Cabral, Isabelle Guinouard, Fernando Pedichini, Oscar Gonzalez, Steven Beard, David Lee, Chris Waring

Proceedings Volume 13096, 130962I (2024) https://doi.org/10.1117/12.3018938

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Proceedings Article | 18 July 2024 Poster + Paper

CUBES, the Cassegrain U-Band Efficient Spectrograph: towards final design review

Matteo Genoni, Hans Dekker, Stefano Covino, Roberto Cirami, Marcello Scalera, Lawrence Bissel, Walter Seifert, Ariadna Calcines, Gerardo Avila, Julian Stϋrmer, Christopher Ritz, David Lunney, Chris Miller, Stephen Watson, Chris Waring, Bruno Castilho, Marcio De Arruda, Orlando Verducci, Igor Coretti, Luca Oggioni, Giorgio Pariani, Edoardo A. M. Redaelli, Matteo D’ Ambrogio, Giorgio Calderone, Matteo Porru, Ingo Stilz, Rodolfo Smiljanic, Guido Cupani, Mariagrazia Franchini, Andrea Scaudo, Vincent Geers, Vincenzo De Caprio, Domenico D' Auria, Mina Sibalic, Cyrielle Opitom, Gabriele Cescutti, Valentina D’ Odorico, Ruben Sanchez-Janssen, Andreas Quirrenbach, Beatriz Barbuy, Stefano Cristiani, Paolo Di Marcantonio

Proceedings Volume 13096, 130967T (2024) https://doi.org/10.1117/12.3018288

KEYWORDS: Spectrographs, Design, Calibration, Sensors, Telescopes, Signal to noise ratio, Charge-coupled devices, Spectral resolution, Cameras

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Proceedings Article | 18 July 2024 Presentation + Paper

WST: Widefield Spectroscopic Telescope: addressing the instrumentation challenges of a new 12m class telescope dedicated to widefield multi-object and integral field spectroscopy

David Lee, Joël D. Vernet, Roland Bacon, Alexandre Jeanneau, Ernesto Oliva, Anna Brucalassi, Andrea Tozzi, José Araiza-Durán, Andrea Bianco, Jan Kragt, Ramon Navarro, Bianca Garilli, Kjetil Dohlen, Jean-Paul Kneib, Ricardo Araujo, Maxime Rombach, Eloy Hernandez, Roelof de Jong, Andreas Kelz, Stephen Watson, Tom Louth, Ian Bryson, Elizabeth George, Norbert Hubin, Julia Bryant, Jon Lawrence

Proceedings Volume 13096, 130960N (2024) https://doi.org/10.1117/12.3018257

KEYWORDS: Telescopes, Spectrographs, Design, Spectroscopes, Mirrors, CMOS sensors, Sensors, Optical design

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Proceedings Article | 29 August 2022 Poster + Paper

Outgassing properties of additively manufactured aluminium

Ciarán Breen, James Walpole, Carolyn Atkins, Scott McPhee, Mark Cliffe, Jamie Moffat, Maisie Edwards-Mowforth, Isla Lister, Lucy Reynolds, Andrew Conley, Sam Allum, Robert M. Snell, Sam Tammas-Williams, Steve Watson

Proceedings Volume 12188, 121882I (2022) https://doi.org/10.1117/12.2627331

KEYWORDS: Aluminum, Statistical analysis, Additive manufacturing, Surface roughness, Astronomy, Molecules, Surface finishing, Metrology, Metals, Titanium

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Proceedings Article | 29 August 2022 Poster + Paper

ETFP: a new fibre positioner concept for future Multi-Object Spectrographs

T. Louth, S. Watson, O. Gonzalez

Proceedings Volume 12188, 121885M (2022) https://doi.org/10.1117/12.2627714

KEYWORDS: Spectrographs, Astronomy, Machine learning, Telescopes, Galactic astronomy, Structured optical fibers

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Proceedings Article | 29 August 2022 Presentation + Paper

MOONS fibre positioning module: instrument build overview

Stephen Watson, Raziye Artan, David Atkinson, Steven Beard, Martin Black, Ciaran Breen, Ian Bryson, Jose Carrera, Stefane Caseiro, Lee Chapman, Stephen Chittick, William Cochrane, Miriam Colling, Oscar Gonzalez, Markus Hug, Ciaran Lawrence, Alexander Lay, David Montgomery, Yves Moser, Johannes Nix, Alan O'Brien, Phil Rees, William Taylor, Bart Willemse

Proceedings Volume 12188, 1218829 (2022) https://doi.org/10.1117/12.2627329

KEYWORDS: Metrology, Resistance, Cameras, Calibration, Spectrographs, Computer aided design, Optical alignment, Connectors, Tolerancing, Microsystems

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Proceedings Article | 29 August 2022 Paper

MOONS – Multi Object spectroscopy for the VLT: design and testing of the MOONS metrology system

Oscar A. Gonzalez, Ciaran Breen, Jorge Sepulveda, Tzu-Chiang Shen, Phil Rees, Alexandre Cabral, Martin Black, Ian Bryson, Michele Cirasuolo, Steven Beard, Stephen Chittick, Manuel Parra, Alexis Tejeda, Leonardo Vanzi, Stephen Watson, Manuela Zoccali

Proceedings Volume 12188, 121883S (2022) https://doi.org/10.1117/12.2629946

KEYWORDS: Metrology, Calibration, Commercial off the shelf technology, 3D metrology, Imaging systems, Photogrammetry, Target detection

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Proceedings Article | 29 August 2022 Poster + Paper

MOONS - multi object spectroscopy for the VLT: final performances and integration of the fibres

Isabelle Guinouard, Philippe Laporte, Jean-Philippe Amans, David Lee, Phil Rees, Martin Black, Stephen Watson, Hector Flores

Proceedings Volume 12188, 121885S (2022) https://doi.org/10.1117/12.2626975

KEYWORDS: Spectrographs, Astronomical imaging, Cameras, Microlens, Telescopes, Spectroscopy, Optical fabrication, Integrating spheres, Photodiodes, Optics manufacturing

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Proceedings Article | 29 August 2022 Presentation + Paper

MOONS fibre positioner control and path planning software

Steven Beard, Bart Willemse, Stephen Watson, David Atkinson, Pablo Gutierrez Cheetham, Paolo Franzetti, Johannes Nix

Proceedings Volume 12189, 121890V (2022) https://doi.org/10.1117/12.2629239

KEYWORDS: Collision avoidance, Motion controllers, Detection and tracking algorithms, Algorithm development, Metrology, Switches, Tolerancing, Safety, Control systems, Spectrographs, Electronics, Databases

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Proceedings Article | 29 August 2022 Presentation + Paper

MOONS – multi object spectroscopy for the VLT: overview and instrument integration update

Oscar Gonzalez, Michele Cirasuolo, William Taylor, Martin Black, Philip Rees, Ian Bryson, Stephen Chittick, Jose Afonso, Simon Lilly, Hector Flores, Roberto Maiolino, Ernesto Oliva, Stephane Paltani, Leonardo Vanzi, Manuel Abreu, Jean-Philippe Amans, David Atkinson, Steven Beard, Andrea Belfiore, Ciaran Breen, Amelia Bayo, Andy Born, Alexandre Cabral, Lee Chapman, William Cochrane, João Coelho, Miriam Colling, Ralf Conzelmann, Francesco Dalessio, George Davidson, Françoise Delplancke-Ströbele, Martin Fisher, Vincenzo Forchi, Paolo Franzetti, Bianca Garilli, Adriana Gargiulo, Isabelle Guinouard, Pablo Gutierrez, Régis Haigron, Peter Hammersley, Valentin Ivanov, Derek Ives, Olaf Iwert, David King, Suzanne Kovacz, Philippe Laporte, David Lee, Gianluca Li Causi, Alastair Macleod, Domingo Alvarez Mendez, António Oliveira, Ralf Palsa, Manuel Parra, Fernando Pedichini, Vicente Peña, Monika Petr-Gotzens, Myriam Rodrigues, Frédéric Royer, Pedro Santos, Jorge Sepulveda, Robyn Sharman, Tzu-Chiang Shen, Michael Sordet, Jonathan Strachan, Graham Tait, Alexis Tejeda, Andrea Tozzi, Norman O'Malley, Chris Waring, Stephen Watson, Bart Willemse, Xiaofeng Gao, Yanbin Yang, Manuela Zoccali

Proceedings Volume 12184, 1218412 (2022) https://doi.org/10.1117/12.2629932

KEYWORDS: Cameras, Calibration, Spectrographs, Metrology, Telescopes, Image quality, Astronomical imaging

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Proceedings Article | 29 August 2022 Poster + Paper

MOONS – multi object spectroscopy for the VLT: integration and tests of the field corrector and the rotating front end

Alexandre Cabral, Manuel Abreu, João M. Coelho, Pedro Santos, António Oliveira, Inês Leite, José Afonso, Phil Rees, Raziye Artan, David Lee, Oscar González, Stephen Watson, William Taylor, Stephen Chittick, Ian Bryson, Isabelle Guinouard, Michele Cirasuolo, Paolo Spanò

Proceedings Volume 12184, 121846P (2022) https://doi.org/10.1117/12.2628923

KEYWORDS: Metrology, Telescopes, Cameras, Spectrographs, Calibration, Lenses, Astronomical imaging, Spectroscopy

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Proceedings Article | 29 August 2022 Presentation + Paper

CUBES: the Cassegrain U-band Efficient Spectrograph

S. Cristiani, J. M. Alcalá, S. H. P. Alencar, S. Balashev, N. Bastian, B. Barbuy, U. Battino, A. Calcines , G. Calderone, P. Cambianica, R. Carini, B. Carter, S. Cassisi, B. Castilho, G. Cescutti, N. Christlieb, R. Cirami, I. Coretti, R. Cooke, S. Covino, G. Cremonese, K. Cunha, G. Cupani, A. da Silva, V. De Caprio, A. De Cia, H. Dekker, V. D'Elia, G. de Silva, M. Diaz, P. Di Marcantonio, D. D'Auria, V. D'Odorico, A. Fitzsimmons, H. Ernandes, C. Evans, M. Franchini, M. Genoni, B. Gänsicke, R. E. Giribaldi, C. Gneiding, A. Grazian, C. J. Hansen, F. La Forgia, M. Landoni, M. Lazzarin, D. Lunney, W. Maciel, W. Marcolino, M. Marconi, A. Migliorini, C. Miller, P. Noterdaeme, C. Opitom, G. Pariani, B. Pilecki, S. Piranomonte, A. Quirrenbach, E. M. A. Redaelli, C. Pereira, S. Randich, S. Rossi, R. Sanchez-Janssen, W. Seifert, R. Smiljanic, C. Snodgrass, I. Stilz, J. Stürmer, E. Vanzella, P. Ventura, O. Verducci, C. Waring, S. Watson, M. Wells, D. Wright, T. Zafar, A. Zanutta

Proceedings Volume 12184, 121840A (2022) https://doi.org/10.1117/12.2629990

KEYWORDS: Spectrographs, Stars, Chemical elements, Ultraviolet radiation, Telescopes, Galactic astronomy, Sensors, Astronomy, Signal to noise ratio, Near ultraviolet

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Proceedings Article | 13 December 2020 Poster + Paper

Assemblies of the microlenses on the front-end fibres of MOONS

Isabelle Guinouard, David Horville, David Lee, Stephen Watson, Phil Rees, Hector Flores

Proceedings Volume 11451, 114516I (2020) https://doi.org/10.1117/12.2560639

KEYWORDS: Microlens, Spectrographs, Optical instrument design, Astronomical imaging, Large telescopes, Telescopes, Cryogenics, Optical filters, Sensors

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Proceedings Article | 13 December 2020 Poster + Paper

Final characteristics and performances of the fibres of MOONS

Isabelle Guinouard, Jean-Philippe Amans, David Horville, David Lee, Alexandre Cabral, Phil Rees, Stephen Watson, William Taylor, Hector Flores

Proceedings Volume 11451, 114516J (2020) https://doi.org/10.1117/12.2560635

KEYWORDS: Spectrographs, Astronomical imaging, Large telescopes, Cryogenics, Microlens

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Proceedings Article | 13 December 2020 Poster + Paper

MOONS, the next ESO VLT’s multi-object spectrograph: the field corrector and the rotating front end

Alexandre Cabral, Manuel Abreu, João M. Coelho, Pedro Santos, Antonio Oliveira, Inês Leite, Jose Afonso, Phil Rees, William Taylor, Stephen Watson, David Lee, David Atkinson, Óscar González, Alasdair Fairley, Ian Bryson, Isabelle Guinouard, Michele Cirasuolo

Proceedings Volume 11447, 114478D (2020) https://doi.org/10.1117/12.2561412

KEYWORDS: Spectrographs, Astronomical imaging, Telescopes, Large telescopes, Optical fibers, Robotics, Cryogenics, Interfaces, Metrology, Calibration

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Proceedings Article | 13 December 2020 Presentation + Paper

Design and testing of the MOONS fibre positioning units

Steve Watson, David Atkinson, Steven Beard, Martin Black, Ian Bryson, Jose Carrera, Stefane Caserio, Lee Chapman, William Cochrane, Miriam Colling, Alasdair Fairley, Oscar Gonzalez, Markus Hug, Ciaran Lawrence, Alexander Lay, David Montgomery, Yves Moser, Johannes Nix, Alan O'Brien, Phil Rees, William Taylor, Bart Willemse

Proceedings Volume 11451, 1145127 (2020) https://doi.org/10.1117/12.2563319

KEYWORDS: Visible radiation, Spectrographs, Spectroscopes, Multiplexing, Astronomy, Microsystems, Product engineering

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Proceedings Article | 13 July 2018 Presentation + Paper

Rising MOONS: an update on the VLT’s next multi-object spectrograph as it begins to grow

William Taylor, Michele Cirasuolo, Jose Afonso, Marcella Carollo, Chris Evans, Hector Flores, Roberto Maiolino, Stephane Paltani, Leonardo Vanzi, Manuel Abreu, Jean-Phillipe Amans, David Atkinson, Joe Barrett, Steven Beard, Celementine Béchet, Martin Black, David Boettger, Saskia Brierley, David Buscher, Alexandre Cabral, William Cochrane, João Coelho, Miriam Colling, Ralf Conzelmann, Francesco Dalessio, Louise Dauvin, George Davidson, Holger Drass, Rolando Dünner, Alasdair Fairley, Giles Fasola, Debora Ferruzzi, Martin Fisher, Mauricio Flores, Bianca Garilli, Julien Gaudemard, Oscar Gonzalez, Isabelle Guinouard, Pablo Gutierrez, Peter Hammersley, Régis Haigron, Chris Haniff, Mahmoud Hayati, Derek Ives, Olaf Iwert, Philippe Laporte, David Lee, Gianluca Li Causi, Yerko Luco, Alastair Macleod, Vincenzo Mainieri, Charles Maire, Basile-Thierry Melse, Johannes Nix, Ernesto Oliva, António Oliveira, Livia Origlia, Ian Parry, Fernando Pedichini, Roberto Piazzesi, Phil Rees, Florent Reix, Myriam Rodrigues, Felipe Rojas, Stefano Rota, Frédéric Royer, Pedro Santos, Robin Schnell, Tzu-Chiang Shen, Michael Sordet, Jonathan Strachan, Xiaowei Sun, Graham Tait, Miguel Torres, Andre Tozzi, Simon Tulloch, Álvaro Valenzuela Navarro, Lauren Von Dran, Chris Waring, Stephen Watson, Brian Woodward, Yanbin Yang

Proceedings Volume 10702, 107021G (2018) https://doi.org/10.1117/12.2313403

KEYWORDS: Cameras, Optical fibers, Telescopes, Sensors, Metrology, Calibration, Spectrographs, Galactic astronomy, Astronomical imaging, Stars

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Proceedings Article | 10 July 2018 Presentation + Paper

Topological design of lightweight additively manufactured mirrors for space

Carolyn Atkins, Charlotte Feldman, David Brooks, Stephen Watson, William Cochrane, Melanie Roulet, Emmanuel Hugot, Mat Beardsley, Michael Harris, Christopher Spindloe, Simon Alcock, Ioana-Theodora Nistea, Christian Morawe, François Perrin

Proceedings Volume 10706, 107060I (2018) https://doi.org/10.1117/12.2313353

KEYWORDS: Mirrors, Polishing, Surface roughness, Additive manufacturing, Finite element methods, Space mirrors, Aluminum, Single point diamond turning, Lightweight mirrors, Error analysis, 3D printing

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Additive manufacturing (AM), more commonly known as 3D printing, is a commercially established technology for rapid prototyping and fabrication of bespoke intricate parts. To date, research quality mirror prototypes are being trialled using additive manufacturing, where a high quality reflective surface is created in a post-processing step. One advantage of additive manufacturing for mirror fabrication is the ease to lightweight the structure: the design is no longer confined by traditional machining (mill, drill and lathe) and optimised/innovative structures can be used. The end applications of lightweight AM mirrors are broad; the motivation behind this research is low mass mirrors for space-based astronomical or Earth Observation imaging. An example of a potential application could be within nano-satellites, where volume and mass limits are critical. The research presented in this paper highlights the early stage experimental development in AM mirrors and the future innovative designs which could be applied using AM.

The surface roughness on a diamond-turned AM aluminium (AlSi₁₀Mg) mirror is presented which demonstrates the ability to achieve an average roughness of ~3.6nm root mean square (RMS) measured over a 3 x 3 grid. A Fourier transform of the roughness data is shown which deconvolves the roughness into contributions from the diamond-turning tooling and the AM build layers. In addition, two nickel phosphorus (NiP) coated AlSi₁₀Mg AM mirrors are compared in terms of surface form error; one mirror has a generic sandwich lightweight design at 44% the mass of a solid equivalent, prior to coating and the second mirror was lightweighted further using the finite element analysis tool topology optimisation. The surface form error indicates an improvement in peak-to-valley (PV) from 323nm to 204nm and in RMS from 83nm to 31nm for the generic and optimised lightweighting respectively while demonstrating a weight reduction between the samples of 18%. The paper concludes with a discussion of the breadth of AM design that could be applied to mirror lightweighting in the future, in particular, topology optimisation, tessellating polyhedrons and Voronoi cells are presented.

Proceedings Article | 6 July 2018 Presentation + Paper

CubeSats for infrared astronomy

Wayne Holland, Steve Watson, Colin Cunningham, Tom Bradshaw, Martin Crook, Andy Vick, David Pearson, Maria Milanova, Steve Greenland, Stephen Todd, Chris Waring, Ewan Fitzsimons, Donald MacLeod

Proceedings Volume 10698, 106981T (2018) https://doi.org/10.1117/12.2311431

KEYWORDS: Telescopes, Space telescopes, Sensors, Satellites, Spectroscopy, Infrared astronomy, Astronomy, Mirrors, Thermography, Stars

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Proceedings Article | 8 September 2017 Paper

Design and modeling of an additive manufactured thin shell for x-ray astronomy

Charlotte Feldman, Carolyn Atkins, David Brooks, Stephen Watson, William Cochrane, Melanie Roulet, Richard Willingale, Peter Doel

Proceedings Volume 10399, 103991H (2017) https://doi.org/10.1117/12.2273422

KEYWORDS: X-ray astronomy, Additive manufacturing, X-rays, X-ray telescopes, Mirrors, X-ray technology, X-ray optics, Astronomy, Prototyping

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Proceedings Article | 29 August 2017 Paper

Additive manufactured x-ray optics for astronomy

Carolyn Atkins, Charlotte Feldman, David Brooks, Stephen Watson, William Cochrane, Melanie Roulet, Peter Doel, Richard Willingale, Emmanuel Hugot

Proceedings Volume 10399, 103991G (2017) https://doi.org/10.1117/12.2274011

KEYWORDS: Additive manufacturing, Optics manufacturing, X-ray optics, X-ray astronomy, Astronomy, Finite element methods, Mirrors, Polishing, X-ray telescopes, 3D printing

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Proceedings Article | 9 August 2016 Paper

Development of the fibre positioning unit of MOONS

David Montgomery, David Atkinson, Stephen Beard, William Cochrane, Holger Drass, Isabelle Guinouard, David Lee, William Taylor, Phil Rees, Steve Watson

Proceedings Volume 9908, 990895 (2016) https://doi.org/10.1117/12.2234183

KEYWORDS: Spectrographs, Astronomical imaging, Prototyping, Switches, Electronics, Computer programming, Diodes, Metrology, Interfaces, Signal detection

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Proceedings Article | 9 August 2016 Paper

Implementation and performance of the metrology system for the multi-object optical and near-infrared spectrograph MOONS

Holger Drass, Leonardo Vanzi, Miguel Torres-Torriti, Rolando Dünner , Tzu-Chiang Shen, Francisco Belmar, Lousie Dauvin, Tomás Staig, Jonathan Antognini, Mauricio Flores, Yerko Luco, Clémentine Béchet, David Boettger, Steven Beard, David Montgomery, Stephen Watson, Alexandre Cabral, Mahmoud Hayati, Manuel Abreu, Phil Rees, Michele Cirasuolo, William Taylor, Alasdair Fairley

Proceedings Volume 9908, 99088E (2016) https://doi.org/10.1117/12.2232654

KEYWORDS: Metrology, Spectrographs, Cameras, Astronomical imaging, Time metrology, Calibration, Electroluminescent displays, Target detection, Staring arrays, Telescopes

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Showing 5 of 23 publications

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