Prof. Robert G. Sharp Profile

Prof. Robert G. Sharp

at Australian National Univ

SPIE Involvement:

Author

Publications (32)

Proceedings Article | 19 October 2023 Presentation + Paper

Presentation + Paper

OzFuel: a space-based vegetation fuel flammability monitoring system

Nicolas Younes, Marta Yebra, Joice Mathew, Robert Sharp

Proceedings Volume 12729, 127291B (2023) https://doi.org/10.1117/12.2679957

KEYWORDS: Vegetation, Equipment, Short wave infrared radiation, Forest fires, Fire, Satellites, Infrared radiation, Staring arrays, Infrared detectors, Data modeling, Detector arrays, Infrared telescopes, Optical telescopes, Telescope instrument control software, Control systems design

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Proceedings Article | 30 August 2022 Poster + Paper

Poster + Paper

Segment phasing for giant telescopes using moving horizon estimation

Jesse Cranney, François Rigaut, Robert Sharp, Marcos van Dam, Ryan McCloy, José De Doná

Proceedings Volume 12185, 121855A (2022) https://doi.org/10.1117/12.2629712

KEYWORDS: Wavefronts, Sensors, Wavefront sensors, Telescopes, Adaptive optics, Point spread functions, Wavefront aberrations, Phase retrieval

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Proceedings Article | 29 August 2022 Poster + Paper

Poster + Paper

Design and manufacture of the carrier and flex cable for the Leonardo 1K

A. Vaccarella, N. Herrald, R. Sharp, J. Gilbert, M. Ellis, E. Zemaityte, M. Hicks

Proceedings Volume 12191, 121912D (2022) https://doi.org/10.1117/12.2629916

KEYWORDS: Sensors, Interfaces, Thermal modeling, Tolerancing, Manufacturing, Temperature metrology, Design for manufacturability, Finite element methods, Signal detection, Aluminum

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

Science instrumentation progress at the Giant Magellan Telescope

R. Millan-Gabet, R. Bernstein, A. Souza, B. Walls, A. Bouchez, B. Sitarski, A. Szentgyorgyi, S. McMuldroch, D. Fabricant, R. A. S. Ribero, R. Sharp, G. Mace, C. B. Brooks, D. T. Jaffe, J. Lawrence, C. Saavedra, J. Crane, A. Uomoto, L. Close, J. Males

Proceedings Volume 12184, 121841Y (2022) https://doi.org/10.1117/12.2628986

KEYWORDS: Spectrographs, Adaptive optics, Telescopes, Imaging spectroscopy, Spectral resolution, Stars, Optical fibers, Imaging systems, Visible radiation, Cameras

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Proceedings Article | 29 August 2022 Presentation

Presentation

Through fires, smoke, hail, austerities and COVID-19: The successful operation of the ANU’s Advanced Instrumentation Technology Centre (AITC).

Roger Haynes, Anna Moore, Celine D'Orgeville, Francois Rigaut, Matthew Colless, Mingming Li, Rob Sharp

Proceedings Volume 12187, 121870P (2022) https://doi.org/10.1117/12.2630599

KEYWORDS: Observatories, Astronomy, Telescopes, Gemini Observatory, Aerospace engineering, Ultraviolet radiation, Systems engineering, Spectrographs, Space operations, Software development

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SPIE Journal Paper | 13 May 2022

Emu: a case study for TDI-like imaging for infrared observation from space

Joice Mathew, James Gilbert, Robert Sharp, Alexey Grigoriev, Adam Rains, Anna Moore, Annino Vaccarella, Aurelie Magniez, David Chandler, Ian Price, Luca Casagrande, Maruša Žerjal, Michael Ireland, Michael Bessell, Nicholas Herrald, Shanae King, Thomas Nordlander

JATIS, Vol. 8, Issue 02, 024002, (May 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.2.024002

KEYWORDS: Stars, Sensors, Infrared radiation, Infrared imaging, Telescopes, Absorption, Space operations, Infrared telescopes, Infrared detectors, Signal to noise ratio

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

A space-based near-infrared sky survey to study the oxygen abundance in cool stars

Joice Mathew, James Gilbert, Robert Sharp, Alexey Grigoriev, Shanae King, Annino Vaccarella, David Chandler, Nicholas Herrald, Ian Price, Aurelie Magniez

Proceedings Volume 11443, 114430J (2020) https://doi.org/10.1117/12.2560898

KEYWORDS: Stars, Oxygen, Infrared imaging, Infrared radiation, Galactic astronomy, Water, Telescopes, Astrophysics, Exoplanets, Sensors

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

GLUV Pathfinder: setting up for rapid cadence UV monitoring of the transient universe

Harrison Abbot, Joice Mathew, Ryan Ridden-Harper, Brad Tucker, Eduardo Trifoni, Robert Sharp, James Gilbert, Nirmal Kaipachery, Mikhael Sayat

Proceedings Volume 11444, 114446V (2020) https://doi.org/10.1117/12.2562172

KEYWORDS: Ultraviolet radiation, Astronomy, Earth's atmosphere, Atmospheric monitoring, Absorption, Near ultraviolet, Ozone, Solar processes, Signal to noise ratio, Wind energy

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Proceedings Article | 3 January 2020 Paper

Paper

Lucky imaging with the Leonardo SAPHIRA at Siding Spring Observatory

Annino Vaccarella, Robert Sharp, Michael Ellis, James Gilbert, Shanae King, David Adams

Proceedings Volume 11203, 1120313 (2020) https://doi.org/10.1117/12.2539779

KEYWORDS: Cryogenics, Cryocoolers, Sensors, Avalanche photodetectors, Observatories, Imaging systems, Electronics, Active vibration damping, Mercury cadmium telluride, Avalanche photodiodes

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Proceedings Article | 3 January 2020 Paper

Paper

GLUV pathfinder mission

Nirmal K., Joice Mathew, James Gilbert, Rob Sharp, Harrison Abbot, R. Ridden-Harper, B. Tucker

Proceedings Volume 11203, 112030I (2020) https://doi.org/10.1117/12.2539908

KEYWORDS: Ultraviolet radiation, Spectroscopy, Ozone, Sensors, Ultraviolet telescopes, Global Positioning System, Astronomy, Telescopes, Computing systems, Temperature sensors

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Proceedings Article | 3 January 2020 Paper

Paper

Emu: a near-infrared wide-field photometer for space

James Gilbert, David Chandler, Alexey Grigoriev, Shanae King, Joice Mathew, Rob Sharp, Annino Vaccarella

Proceedings Volume 11203, 112030H (2020) https://doi.org/10.1117/12.2539776

KEYWORDS: Sensors, Photometry, Stars, Electronics, Image processing, Space operations, Earth's atmosphere, Field programmable gate arrays, Cryocoolers, Control systems design

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Proceedings Article | 3 January 2020 Paper

Paper

Vibration measurement and mount design for cryocoolers on GMT and large telescopes

D. Adams, A. Vaccarella, W. Schofield, R. Sharp, J. Gilbert, G. Gausachs

Proceedings Volume 11203, 1120314 (2020) https://doi.org/10.1117/12.2539923

KEYWORDS: Cryocoolers, Optical instrument design, Large telescopes, Telescopes, Vibrometry, Signal attenuation, Observatories, Adaptive optics

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Proceedings Article | 16 July 2018 Presentation + Paper

Presentation + Paper

Commissioning of cryogenic preamplifiers for SAPHIRA detectors

Sean Goebel, Donald N. Hall, Shane Jacobson, Annino Vaccarella, Rob Sharp, Michael Ellis, Izabella Pastrana

Proceedings Volume 10709, 107090R (2018) https://doi.org/10.1117/12.2311513

KEYWORDS: Sensors, Cryogenics, Cameras, Telescopes, Adaptive optics, Signal detection, Wavefront sensors, Electronics

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Proceedings Article | 12 July 2018 Paper

Paper

Cryogenic detector preamplifer developments at the ANU

Annino Vaccarella, Robert Sharp, Michael Ellis, Antonin Bouchez, Rodolphe Conan, R. Boz, David Bundy, Gaston Gausachs, James Gilbert, Luke Gers, John Hart, Nick Herrald, Michael Ireland, Jon Nielsen, Ian Price, Colin Vest, Henry Zovaro

Proceedings Volume 10709, 1070923 (2018) https://doi.org/10.1117/12.2313023

KEYWORDS: Cryogenics, Sensors, Charge-coupled devices, Detector development, Avalanche photodetectors, Imaging systems, Optical filters, Spectrographs, Telescopes, Copper

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Proceedings Article | 11 July 2018 Paper

Paper

Stirling cycle cryocooler exported vibration analysis

Annino Vaccarella, Robert Boz, Robert Sharp, Michael Ellis, Andrew Bish, David Adams, David Chandler, Luke Gers, James Gilbert, John Hart, Nick Herrald, Mike Petkovic

Proceedings Volume 10703, 107035C (2018) https://doi.org/10.1117/12.2313024

KEYWORDS: Cryocoolers, Avalanche photodetectors, Imaging systems, Vibrometry, Telescopes, Electronics, Optical isolators, Cooling systems, Sensors, Observatories

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Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

Semiconductor guidestar laser for astronomy, space, and laser communications: prototype design and expected performance

Céline d'Orgeville, Gregory Fetzer, Steven Floyd, Luke Hill, Steve Rako, Nathan Woody, . Sandalphon, Francis Bennet, Antonin Bouchez, Yue Gao, Michael Goodwin, Andrew Lambert, James Mason, Francois Rigaut, Stuart Ryder, Daniel Shaddock, Robert Sharp

Proceedings Volume 10703, 107030T (2018) https://doi.org/10.1117/12.2312405

KEYWORDS: Semiconductor lasers, Laser guide stars, Semiconductors, Sodium, Prototyping, Laser applications, Laser development, Space telescopes, Adaptive optics, Astronomy

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Proceedings Article | 10 July 2018 Paper

Paper

Testing a prototype rotary mechanism for GMTIFS

I. Price, J. Hart, E. O'Brien, R. Sharp, G. Gausachs, G. Bloxham, C. Vest, J. Gilbert, B. Espeland

Proceedings Volume 10706, 107063M (2018) https://doi.org/10.1117/12.2312337

KEYWORDS: Sensors, Content addressable memory, Distance measurement, Prototyping, Autocollimators, Reticles, Temperature metrology, Calibration, Control systems, Cryogenics

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Proceedings Article | 6 July 2018 Presentation + Paper

Presentation + Paper

Design evolution of the Giant Magellan Telescope Integral Field Spectrograph, GMTIFS

R. Sharp, D. Adams, G. Bloxham, R. Boz, D. Bundy, D. Chandler, G. Gausachs, L. Gers, J. Hart, N. Herrald, J. Nielsen, E. O'Brien, C. Onken, I. Price, A. Vaccarella, C. Vest, P. Young

Proceedings Volume 10702, 107021V (2018) https://doi.org/10.1117/12.2313010

KEYWORDS: Sensors, Adaptive optics, Imaging systems, Spectrographs, Optical benches, Iterated function systems, Wavefront sensors, Prototyping, Telescopes, Optical design

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Proceedings Article | 9 August 2016 Paper

Paper

GMTIFS: challenging optical design problems and their solutions for the GMT integral-field spectrograph

John Hart, Gabe Bloxham, Robert Boz, Brady Espeland, Robert Sharp

Proceedings Volume 9908, 99089F (2016) https://doi.org/10.1117/12.2231552

KEYWORDS: Adaptive optics, Optical design, Spectrographs, Telescopes, Diffraction, Mirrors, Projection systems, Monochromatic aberrations, Distortion, Image quality

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Proceedings Article | 9 August 2016 Paper

Paper

GMTIFS: The Giant Magellan Telescope integral fields spectrograph and imager

Rob Sharp, G. Bloxham, R. Boz, D. Bundy, J. Davies, B. Espeland, B. Fordham, J. Hart, N. Herrald, J. Nielsen, A. Vaccarella, C. Vest, P. Young, P. McGregor

Proceedings Volume 9908, 99081Y (2016) https://doi.org/10.1117/12.2231561

KEYWORDS: Spectrographs, Adaptive optics, Imaging systems, Iterated function systems, Telescopes, Sensors, Galactic astronomy, Mirrors, Stars, Cameras

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Proceedings Article | 9 August 2016 Paper

Paper

Avalanche photo diodes in the observatory environment: lucky imaging at 1-2.5 microns

A. Vaccarella, R. Sharp, M. Ellis, S. Singh, G. Bloxham, A. Bouchez, R. Conan, R. Boz, D. Bundy, J. Davies, B. Espeland, J. Hart, N. Herrald, M. Ireland, G. Jacoby, J. Nielsen, C. Vest, P. Young, B. Fordham, A. Zovaro

Proceedings Volume 9908, 99082X (2016) https://doi.org/10.1117/12.2231557

KEYWORDS: Sensors, Observatories, Imaging systems, Adaptive optics, Observatories, Imaging systems, Telescopes, Cryogenics, Avalanche photodetectors, Space telescopes, Electronics, Copper

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Proceedings Article | 9 August 2016 Paper

Paper

ULTIMATE: a deployable multiple integral field unit for Subaru

S. Ellis, Ross Zhelem, David Brown, Nicholas Staszak, Chris Lidman, David Nataf, Andrew Casey, Pascal Xavier, Andrew Sheinis, Peter Gillingham, Julia Tims, Jon Lawrence, Julia Bryant, Rob Sharp

Proceedings Volume 9908, 99081Q (2016) https://doi.org/10.1117/12.2232107

KEYWORDS: Spectrographs, Space telescopes, Telescopes, Galactic astronomy, Microlens array, K band, Sensors, ZBLAN, Mirrors, Metrology

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Proceedings Article | 9 August 2016 Paper

Paper

Instrumentation progress at the Giant Magellan Telescope project

George Jacoby, R. Bernstein, A. Bouchez, M Colless, Jeff Crane, D. DePoy, B. Espeland, Tyson Hare, D. Jaffe, J. Lawrence, J. Marshall, P. McGregor, Stephen Shectman, R. Sharp, A. Szentgyorgyi, Alan Uomoto, B. Walls

Proceedings Volume 9908, 99081U (2016) https://doi.org/10.1117/12.2232809

KEYWORDS: Spectrographs, Telescopes, Adaptive optics, Astronomical imaging, Optical design, Spectrographs, Astronomical imaging, Mirrors, Stars, Galactic astronomy, Neodymium, Astronomy

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Proceedings Article | 3 August 2016 Paper

Paper

GLUV: a balloon-borne high-cadence ultraviolet monitoring telescope for supernova shock breakouts and exoplanet atmospheres

Rob Sharp, B. Tucker, R. Ridden-Harper, G. Bloxham, M. Petkovic

Proceedings Volume 9908, 99080V (2016) https://doi.org/10.1117/12.2231555

KEYWORDS: Exoplanets, Ultraviolet radiation, Ultraviolet telescopes, Telescopes, Atmospheric monitoring, Near ultraviolet, Ultraviolet radiation, Ozone, Stars, Space telescopes, Planets

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Proceedings Article | 27 July 2016 Paper

Paper

GMTIFS: deformable mirror environmental testing for the on-instrument wavefront sensor

M. Copeland, I Price, F. Rigaut, G. Bloxham, R. Boz, D. Bundy, B. Espeland, R. Sharp

Proceedings Volume 9909, 990980 (2016) https://doi.org/10.1117/12.2231550

KEYWORDS: Wavefront sensors, Adaptive optics, Actuators, Deformable mirrors, Mirrors, Stars, Control systems, Wavefronts, Data acquisition, Sensors

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Proceedings Article | 22 July 2016 Paper

Paper

GMTIFS: the adaptive optics beam steering mirror for the GMT integral-field spectrograph

J. Davies, G. Bloxham, R. Boz, D. Bundy, B. Espeland, B. Fordham, J. Hart, N. Herrald, J. Nielsen, R. Sharp, A. Vaccarella, C. Vest, P. Young

Proceedings Volume 9912, 991217 (2016) https://doi.org/10.1117/12.2231560

KEYWORDS: Beam steering, Mirrors, Actuators, Sensors, Cryogenics, Stars, Adaptive optics, Spectrographs, Interferometry, Servomechanisms

Read Abstract +

To achieve the high adaptive optics sky coverage necessary to allow the GMT Integral-Field Spectrograph (GMTIFS) to access key scientific targets, the on-instrument adaptive-optics wavefront-sensing (OIWFS) system must patrol the full 180 arcsecond diameter guide field passed to the instrument. The OIWFS uses a diffraction limited guide star as the fundamental pointing reference for the instrument. During an observation the offset between the science target and the guide star will change due to sources such as flexure, differential refraction and non-sidereal tracking rates. GMTIFS uses a beam steering mirror to set the initial offset between science target and guide star and also to correct for changes in offset. In order to reduce image motion from beam steering errors to those comparable to the AO system in the most stringent case, the beam steering mirror is set a requirement of less than 1 milliarcsecond RMS. This corresponds to a dynamic range for both actuators and sensors of better than 1/180,000.

The GMTIFS beam steering mirror uses piezo-walk actuators and a combination of eddy current sensors and interferometric sensors to achieve this dynamic range and control. While the sensors are rated for cryogenic operation, the actuators are not. We report on the results of prototype testing of single actuators, with the sensors, on the bench and in a cryogenic environment. Specific failures of the system are explained and suspected reasons for them. A modified test jig is used to investigate the option of heating the actuator and we report the improved results. In addition to individual component testing, we built and tested a complete beam steering mirror assembly. Testing was conducted with a point source microscope, however controlling environmental conditions to less than 1 micron was challenging. The assembly testing investigated acquisition accuracy and if there was any un-sensed hysteresis in the system. Finally we present the revised beam steering mirror design based on the outcomes and lessons learnt from this prototyping.

Proceedings Article | 22 July 2016 Paper

Paper

GMTIFS: cryogenic rotary mechanisms for the GMT Integral-Field Spectrograph

John Hart, Brady Espeland, Gabe Bloxham, Robert Boz, Dave Bundy, John Davies, Bart Fordham, Nick Herald, Rob Sharp, Annino Vaccarella, Colin Vest

Proceedings Volume 9912, 991264 (2016) https://doi.org/10.1117/12.2231556

KEYWORDS: Cryogenics, Sensors, Spectrographs, Imaging systems, Aluminum, Beam splitters, Interfaces, Diffraction gratings, Mechanical engineering, Spectral resolution

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Proceedings Article | 18 July 2014 Paper

Paper

The adaptive optics beam steering mirror for the GMT Integral-Field Spectrograph, GMTIFS

R. Sharp, R. Boz, J. Hart, G. Bloxham, D. Bundy, J. Davis, P. McGregor, J. Nielson, C. Vest, P. Young

Proceedings Volume 9151, 91510C (2014) https://doi.org/10.1117/12.2054835

KEYWORDS: Adaptive optics, Sensors, Mirrors, Stars, Electroluminescent displays, Computer programming, Beam steering, Spectrographs, Actuators, Wavefront sensors

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Proceedings Article | 24 September 2012 Paper

Paper

GMT integral-field spectrograph (GMTIFS) conceptual design

Peter McGregor, G. Bloxham, R. Boz, J. Davies, M. Doolan, M. Ellis, J. Hart, D. Jones, L. Luvaul, J. Nielsen, S. Parcell, R. Sharp, D. Stevanovic, P. Young

Proceedings Volume 8446, 84461I (2012) https://doi.org/10.1117/12.925259

KEYWORDS: Mirrors, Iterated function systems, Imaging systems, Telescopes, Stars, Sensors, Spectrographs, Galactic astronomy, Adaptive optics, Atmospheric sciences

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Proceedings Article | 24 September 2012 Paper

Paper

KOALA: a wide-field 1000 element integral-field unit for the Anglo-Australian Telescope

S. Ellis, M. Ireland, J. Lawrence, J. Tims, N. Staszak, J. Brzeski, Q. Parker, R. Sharp, J. Bland-Hawthorn, S. Case, M. Colless, S. Croom, W. Couch, O. De Marco, K. Glazebrook, W. Saunders, R. Webster, D. Zucker

Proceedings Volume 8446, 84460V (2012) https://doi.org/10.1117/12.925812

KEYWORDS: Radon, Telescopes, Astronomy, Spectrographs, Staring arrays, Microlens array, Galactic astronomy, Physics, Chemical elements, Microlens

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Proceedings Article | 27 June 2006 Paper

Paper

Performance of AAOmega: the AAT multi-purpose fiber-fed spectrograph

Robert Sharp, Will Saunders, Greg Smith, Vladimir Churilov, David Correll, John Dawson, Tony Farrel, Gabriella Frost, Roger Haynes, Ron Heald, Allan Lankshear, Don Mayfield, Lew Waller, Dennis Whittard

Proceedings Volume 6269, 62690G (2006) https://doi.org/10.1117/12.671022

KEYWORDS: Cameras, Spectrographs, Point spread functions, Sensors, Telescopes, Galactic astronomy, Calibration, Light scattering, Optical design, Spectral resolution

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Proceedings Article | 30 September 2004 Paper

Paper

CIRPASS: description, performance, and astronomical results

Ian Parry, Andrew Bunker, Andrew Dean, Michelle Doherty, Anthony Horton, David King, Marie Lemoine-Busserole, Craig Mackay, Richard McMahon, Steve Medlen, Robert Sharp, Joanna Smith

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.552012

KEYWORDS: Galactic astronomy, Telescopes, Spectrographs, Molybdenum, Sensors, Gemini Observatory, Cameras, Astronomy, Near infrared, Astronomical imaging

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Showing 5 of 32 publications

Conference Committee Involvement (1)

Advances in Optical Astronomical Instrumentation 2019

9 December 2019 | Melbourne, Australia

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