Professor Céline d’Orgeville is the Australian National University (ANU) Advanced Instrumentation and Technology Centre (AITC) Deputy Director where she leads a team of over 40 scientists and engineers developing innovative, bespoke, cutting-edge instrumentation for astronomy and space. She is a world expert in Laser Guide Star Adaptive Optics (LGS AO) for astronomy and the Australian Principal Investigator for the ULTIMATE-Subaru Ground Layer AO and the Giant Magellan Telescope Laser Tomography AO projects. As an ANU Translational Fellow, she is working with government and industry to transfer her LGS AO research into the commercial world of space situational awareness and ground-to-space laser communications.
Before joining the ANU Research School of Astronomy and Astrophysics (RSAA) in 2012, Céline worked at the Gemini Observatory where she led the Gemini laser program, including the design, fabrication and commissioning of the Gemini North and South LGS facilities in Hawaii and Chile. Céline’s GeMS 5-LGS Facility for Multi-Conjugate AO has held the record for most sodium guide stars in a LGS asterism since its commissioning in 2011.
Prof. d’Orgeville is a Fellow of the International Society for Optics and Photonics (SPIE) and a Fellow of the Astronomical Society of Australia. She was the inaugural chair of the RSAA Access and Equity Committee created in 2013. Céline co-chaired the 2014 ASA Women in Astronomy (WiA) workshop with Nobel Laureate Prof. Brian Schmidt (now ANU Vice-Chancellor) and was an active member of the ASA WiA Chapter steering committee, which later became the Inclusion Diversity Equity in Astronomy (IDEA) Chapter in 2016. Céline is also a long-standing ANU Ally. She has been a strong voice and advocate for IDEA in all its forms through her contributions to the ANU Gender Institute management committee, the University Research Committee, the ANU Academic Board, and SPIE. Céline is the proud recipient of the 2021 SPIE Diversity Outreach Award.
Before joining the ANU Research School of Astronomy and Astrophysics (RSAA) in 2012, Céline worked at the Gemini Observatory where she led the Gemini laser program, including the design, fabrication and commissioning of the Gemini North and South LGS facilities in Hawaii and Chile. Céline’s GeMS 5-LGS Facility for Multi-Conjugate AO has held the record for most sodium guide stars in a LGS asterism since its commissioning in 2011.
Prof. d’Orgeville is a Fellow of the International Society for Optics and Photonics (SPIE) and a Fellow of the Astronomical Society of Australia. She was the inaugural chair of the RSAA Access and Equity Committee created in 2013. Céline co-chaired the 2014 ASA Women in Astronomy (WiA) workshop with Nobel Laureate Prof. Brian Schmidt (now ANU Vice-Chancellor) and was an active member of the ASA WiA Chapter steering committee, which later became the Inclusion Diversity Equity in Astronomy (IDEA) Chapter in 2016. Céline is also a long-standing ANU Ally. She has been a strong voice and advocate for IDEA in all its forms through her contributions to the ANU Gender Institute management committee, the University Research Committee, the ANU Academic Board, and SPIE. Céline is the proud recipient of the 2021 SPIE Diversity Outreach Award.
This will count as one of your downloads.
You will have access to both the presentation and article (if available).
The ULTIMATE Ground Layer Adaptive Optics (GLAO) system is part of ULTIMATE-Subaru, the next generation facility instrumentation project at the Subaru telescope in Hawaii. GLAO is led by the Subaru Telescope in collaboration with Tohoku University, Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), and the Australian National University (ANU).
ANU is currently designing the Laser Guide Star Facility and the Wavefront Adaptor Flange with four Laser Guide Star wavefront sensors, and four Natural Guide Star wavefront sensors. The GLAO Wavefront Adaptor Flange will provide Adaptive Optics capability to the wide-field imager (WFI) instrument to be installed at the Subaru Cassegrain focus in 2027.
Four Laser Guide Star wavefront sensors mounted over a fabricated steel structure enable the acquisition of LGS asterisms of up to 20 arcmin in diameter. Each WFS has been designed to also account for the telescope optical aberrations and the non-telecentricity. The NGS instance consists of four Natural Guide Star wavefront sensors for tip-tilt and focus measurement.
In this paper, we present an overview of the GLAO Wavefront Adaptor Flange including the preliminary design for the opto-mechanical assembly of both LGS and NGS instances, and the mechanisms control system that enables fine acquisition of the guide stars over the wide patrol field of the GLAO system.
The Ground Layer Adaptive Optics (GLAO) system for ULTIMATE, the next generation instrumentation project for the Subaru telescope, will generate and use four laser guide stars on sky in side-launch configuration. The design of the GLAO is led and coordinated by the Subaru telescope in collaboration with Tohoku University, Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), and the Australian National University (ANU). ANU is responsible for the wavefront sensor subsystem and the Laser Guide Star Facility.
The GLAO Laser Guide Star Facility (LGSF) includes two Sodium guidestar lasers to be split in a total of four, generating an asterism of four artificial stars on the Hawaiian skies. Divided into three main subsystems (beam transfer optics, beam diagnostics, and beam projection), the GLAO LGSF accounts for the conditioning, splitting, and steering of the laser beams as well as for their launching configuration over a patrol field of 20 arcmin on sky.
This paper presents the preliminary design of the GLAO Laser Guide Star Facility including different approaches for the most efficient splitting of the guidestar lasers, and specifications summary for the final selection of the laser launch telescopes.
This will count as one of your downloads.
You will have access to both the presentation and article (if available).
View contact details
No SPIE Account? Create one
