Highly sensitive telescope designs for higher contrast observations
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Gil Moretto
Gil Moretto is a CNRS Scientist with research activities focusing on the conception and development of dedicated high-resolution and high-dynamic range instrumentations for ground- and spaced-based astronomy in the US and in Europe. He has been part of the team that designed and developed SOAR Telescope, ATST/NSF, NST/BBSO and the novel and powerful instrument concept HDRT – High Dynamic Range Telescope, a diluted multiple off-axis mirrors design. While working in France, he has been involved in the proposals of a near-infrared IFU spectrograph to JWST/ESA/Astrium and a multi-object adaptive optics spectrograph instrument to ESO/E-ELT. He served as Technical Director of one the CNRS’ Unity. Currently, Dr. Moretto is working on optical configurations, co-phasing strategies, and adaptive optics concepts and developments for extremely large telescopes and their instrumentation; and also on a novel infrared survey off-axis telescope concept for Antarctica astronomy.
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Jeff R. Kuhn
Jeff R. Kuhn is a Professor of Astronomy at the University of Hawaii’s Institute for Astronomy. He has written more than 200 articles on diverse astronomical topics. He has designed, built, or contributed to more than a dozen optical and infrared telescopes and has proposed concepts that later became fundamental design elements in the Advanced Technology Solar Telescope and the Giant Magellan Telescope. Dr. Kuhn was educated at Princeton University and has won prizes from the Sloan Foundation and the Humboldt Prize in astrophysics. He served as the Institute for Astronomy’s director on Maui for a decade. Dr. Kuhn is a Principal Coinvestigator for the Advanced Technology Solar Telescope and scientific leader of the Polarized Light from Atmospheres of Nearby ExtraTerrestrial Systems (PLANETS) telescope. Dr. Kuhn is Innovative Optics Chief Technology Officer and a founding partner of the Colossus Corporation.
Abstract
Off-axis telescope concepts that use unobstructed pupils have better emissivity, throughput, diffraction-limited energy concentrations, and higher dynamic range than traditional concentric instruments. The coronagraphic performance of off-axis telescopes will enable instruments, which are starved for higher dynamic range, for example, those devoted to faint companion detection, circumstellar and solar atmosphere studies.
About the authors
Gil Moretto is a CNRS Scientist with research activities focusing on the conception and development of dedicated high-resolution and high-dynamic range instrumentations for ground- and spaced-based astronomy in the US and in Europe. He has been part of the team that designed and developed SOAR Telescope, ATST/NSF, NST/BBSO and the novel and powerful instrument concept HDRT – High Dynamic Range Telescope, a diluted multiple off-axis mirrors design. While working in France, he has been involved in the proposals of a near-infrared IFU spectrograph to JWST/ESA/Astrium and a multi-object adaptive optics spectrograph instrument to ESO/E-ELT. He served as Technical Director of one the CNRS’ Unity. Currently, Dr. Moretto is working on optical configurations, co-phasing strategies, and adaptive optics concepts and developments for extremely large telescopes and their instrumentation; and also on a novel infrared survey off-axis telescope concept for Antarctica astronomy.
Jeff R. Kuhn is a Professor of Astronomy at the University of Hawaii’s Institute for Astronomy. He has written more than 200 articles on diverse astronomical topics. He has designed, built, or contributed to more than a dozen optical and infrared telescopes and has proposed concepts that later became fundamental design elements in the Advanced Technology Solar Telescope and the Giant Magellan Telescope. Dr. Kuhn was educated at Princeton University and has won prizes from the Sloan Foundation and the Humboldt Prize in astrophysics. He served as the Institute for Astronomy’s director on Maui for a decade. Dr. Kuhn is a Principal Coinvestigator for the Advanced Technology Solar Telescope and scientific leader of the Polarized Light from Atmospheres of Nearby ExtraTerrestrial Systems (PLANETS) telescope. Dr. Kuhn is Innovative Optics Chief Technology Officer and a founding partner of the Colossus Corporation.
References
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©2014 THOSS Media & De Gruyter Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Community
- News from the European Optical Society
- Conference Notes
- Conference Calendar
- Topical Issue: Optics for Astronomy / Guest Editors: Jan Burke, Andrew Rakich and Jim Burge
- Editorial
- Optics for astronomy – Editorial
- Review Articles
- Active optics with a minimum number of actuators
- Highly sensitive telescope designs for higher contrast observations
- Replicated spectrographs in astronomy
- Ultra-smooth finishing of aspheric surfaces using CAST technology
- Hydroxide catalysis bonding for astronomical instruments
- Research Articles
- Fabrication and metrology of lithium niobate narrowband optical filters for the solar orbiter
- A method for the use of ellipticities and spot diameters for the measurement of aberrations in wide-field telescopes
- Deflectometric measurement of large mirrors
- The Four-Laser Guide Star Facility: Design considerations and system implementation
Artikel in diesem Heft
- Frontmatter
- Community
- News from the European Optical Society
- Conference Notes
- Conference Calendar
- Topical Issue: Optics for Astronomy / Guest Editors: Jan Burke, Andrew Rakich and Jim Burge
- Editorial
- Optics for astronomy – Editorial
- Review Articles
- Active optics with a minimum number of actuators
- Highly sensitive telescope designs for higher contrast observations
- Replicated spectrographs in astronomy
- Ultra-smooth finishing of aspheric surfaces using CAST technology
- Hydroxide catalysis bonding for astronomical instruments
- Research Articles
- Fabrication and metrology of lithium niobate narrowband optical filters for the solar orbiter
- A method for the use of ellipticities and spot diameters for the measurement of aberrations in wide-field telescopes
- Deflectometric measurement of large mirrors
- The Four-Laser Guide Star Facility: Design considerations and system implementation
