ORCID Profile
0000-0002-1097-9908
Current Organisations
University of Arizona
,
自然科学研究機構国立天文台/National Astronomical Observatory of Japan
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Stellar Astronomy and Planetary Systems | Astronomical and Space Sciences | Astronomical and Space Instrumentation | Photonics, Optoelectronics and Optical Communications | Classical and Physical Optics
ANZSRC Socio-Economic Objective (SEO)
Expanding Knowledge in the Physical Sciences | Expanding Knowledge in Technology |
Related Links
Publications
SCExAO, an instrument with a dual purpose: perform cutting-edge science and develop new technologies
Publisher: SPIE
Date: 13-07-2018
DOI: 10.1117/12.2314282
Project PANOPTES: a citizen-scientist exoplanet transit survey using commercial digital cameras
Publisher: SPIE
Date: 09-08-2016
DOI: 10.1117/12.2234461
Modal noise in an integrated photonic lantern fed diffraction-limited spectrograph
Publisher: The Optical Society
Date: 06-10-2017
DOI: 10.1364/OE.25.025546
How to inject light efficiently into single-mode fibers
Publisher: SPIE
Date: 24-07-2014
DOI: 10.1117/12.2057210
Detecting exoplanets with extreme adaptive optics and a single-mode fibre fed spectrograph
Publisher: IEEE
Date: 05-2013
An eight-octant phase-mask coronagraph for the Subaru coronagraphic extreme AO (SCExAO) system: system design and expected performance
Publisher: SPIE
Date: 16-07-2010
DOI: 10.1117/12.858116
Enhancing Stellar Spectroscopy with Extreme Adaptive Optics and Photonics
Publisher: IOP Publishing
Date: 08-11-2016
Efficient injection from large telescopes into single-mode fibres: Enabling the era of ultra-precision astronomy
Publisher: EDP Sciences
Date: 08-2017
Precision single mode fibre integral field spectroscopy with the RHEA spectrograph
Publisher: SPIE
Date: 09-08-2016
DOI: 10.1117/12.2233743
SHARK-NIR: from K-band to a key instrument, a status update
Publisher: SPIE
Date: 27-07-2016
DOI: 10.1117/12.2233545
The Subaru Coronographic Extreme AO (SCExAO) system: implementation and performances of the Coronographic Low Order WaveFront Sensor
Publisher: SPIE
Date: 16-07-2010
DOI: 10.1117/12.857915
Efficiently feeding single-mode fiber photonic spectrographs with an extreme adaptive optics system
Publisher: SPIE
Date: 03-08-2016
DOI: 10.1117/12.2234299
Demonstration of an efficient, photonic-based astronomical spectrograph on an 8-m telescope
Publisher: The Optical Society
Date: 17-07-2017
DOI: 10.1364/OE.25.017753
The SCExAO high contrast imager: Transitioning from commissioning to science
Publisher: SPIE
Date: 26-07-2016
DOI: 10.1117/12.2234294
The Subaru coronagraphic extreme AO (SCExAO) system: wavefront control and detection of exoplanets with coherent light modulation in the focal plane
Publisher: SPIE
Date: 16-07-2010
DOI: 10.1117/12.857878
Coronagraphic Low-Order Wavefront Sensor: Postprocessing Sensitivity Enhancer for High-Performance Coronagraphs
Publisher: IOP Publishing
Date: 12-2011
DOI: 10.1086/663723
MagAO-X: project status and first laboratory results
Publisher: SPIE
Date: 10-07-2018
DOI: 10.1117/12.2312992
3D-M3: high-spatial-resolution spectroscopy with extreme AO and 3D-printed micro-lenslets
Publisher: Optica Publishing Group
Date: 23-06-2021
DOI: 10.1364/AO.420855
Abstract: By combining integral field spectroscopy with extreme adaptive optics, we are now able to resolve objects close to the diffraction limit of large telescopes, exploring new science cases. We introduce an integral field unit designed to couple light with a minimal plate scale from the SCExAO facility at NIR wavelengths to a single-mode spectrograph. The integral field unit has a 3D-printed micro-lens array on top of a custom single-mode multi-core fiber, to optimize the coupling of light into the fiber cores. We demonstrate the potential of the instrument via initial results from the first on-sky runs at the 8.2 m Subaru Telescope with a spectrograph using off-the-shelf optics, allowing for rapid development with low cost.
Development of the single-mode fiber integral field unit for the RHEA Spectrograph
Publisher: SPIE
Date: 06-07-2010
DOI: 10.1117/12.2314336
SCExAO/CHARIS High-contrast Imaging of Spirals and Darkening Features in the HD 34700 A Protoplanetary Disk
Publisher: American Astronomical Society
Date: 09-09-2020
The PANOPTES project: discovering exoplanets with low-cost digital cameras
Publisher: SPIE
Date: 22-07-2014
DOI: 10.1117/12.2057288
Focal-plane wavefront sensing with photonic lanterns: theoretical framework
Publisher: Optica Publishing Group
Date: 14-09-2022
DOI: 10.1364/JOSAB.466227
Abstract: The photonic lantern (PL) is a tapered waveguide that can efficiently couple light into multiple single-mode optical fibers. Such devices are currently being considered for a number of tasks, including the coupling of telescopes and high-resolution, fiber-fed spectrometers, coherent detection, nulling interferometry, and vortex-fiber nulling. In conjunction with these use cases, PLs can simultaneously perform low-order focal-plane wavefront sensing. In this work, we provide a mathematical framework for the analysis of a PL wavefront sensor (PLWFS), deriving linear and higher-order reconstruction models as well as metrics through which sensing performance—in both the linear and nonlinear regimes—can be quantified. This framework can be extended to account for additional optics such as beam-shaping optics and vortex masks, and can be generalized for other wavefront sensing architectures. Finally, we provide initial numerical verification of our mathematical models by simulating a six-port PLWFS. In a forthcoming companion paper (Lin and Fitzgerald), we provide a more comprehensive numerical characterization of few-port PLWFSs, and consider how the sensing properties of these devices can be controlled and optimized.
Probing dusty circumstellar environments with polarimetric aperture-masking interferometry
Publisher: SPIE
Date: 12-09-2012
DOI: 10.1117/12.925838
The Subaru coronagraphic extreme AO (SCExAO) system: visible imaging mode
Publisher: SPIE
Date: 16-07-2010
DOI: 10.1117/12.857874
Adaptive optics fed single-mode spectrograph for high-precision Doppler measurements in the near-infrared
Publisher: SPIE
Date: 22-07-2016
DOI: 10.1117/12.2234407
Keck Planet Imager and Characterizer: concept and phased implementation
Publisher: SPIE
Date: 26-07-2016
DOI: 10.1117/12.2233658
2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments
Publisher: IOP Publishing
Date: 10-2023
Abstract: Photonic technologies offer numerous functionalities that can be used to realize astrophotonic instruments. The most spectacular ex le to date is the ESO Gravity instrument at the Very Large Telescope in Chile that combines the light-gathering power of four 8-m telescopes through a complex photonic interferometer. Fully integrated astrophotonic devices offer critical advantages for instrument development, including extreme miniaturization when operating at the diffraction-limit, plus integration, superior thermal and mechanical stabilization owing to the small footprint, and high replicability offering significant cost savings. Numerous astrophotonic technologies have been developed to address shortcomings of conventional instruments to date, including the development of photonic lanterns to convert from multimode inputs to single mode outputs, complex aperiodic fiber Bragg gratings to filter OH emission from the atmosphere, beam combiners enabling long baseline interferometry with for ex le, ESO Gravity, and laser frequency combs for high precision spectral calibration of spectrometers. Despite these successes, the facility implementation of photonic solutions in astronomical instrumentation is currently limited because of 1) low throughputs from coupling to fibers, coupling fibers to chips, propagation and bend losses, device losses, etc., 2) difficulties with scaling to large channel count devices needed for large bandwidths and high resolutions, and 3) efficient integration of photonics with detectors. In this roadmap, we identify 23 key areas that need further development. We outline the challenges and advances needed across those areas covering design tools, simulation capabilities, fabrication processes, the need for entirely new components, integration and hybridization and the characterization of devices. To realize these advances the astrophotonics community will have to work cooperatively with industrial partners who have more advanced manufacturing capabilities. With the advances described herein, multi-functional integrated instruments will be realized leading to novel observing capabilities for both ground and space based platforms, enabling new scientific studies and discoveries.
Direct imaging and astrometric detection of a gas giant planet orbiting an accelerating star
Publisher: American Association for the Advancement of Science (AAAS)
Date: 14-04-2023
Abstract: Direct imaging of gas giant exoplanets provides information on their atmospheres and the architectures of planetary systems. However, few planets have been detected in blind surveys with direct imaging. Using astrometry from the Gaia and Hipparcos spacecraft, we identified dynamical evidence for a gas giant planet around the nearby star HIP 99770. We confirmed the detection of this planet with direct imaging using the Subaru Coronagraphic Extreme Adaptive Optics instrument. The planet, HIP 99770 b, orbits 17 astronomical units from its host star, receiving an amount of light similar to that reaching Jupiter. Its dynamical mass is 13.9 to 16.1 Jupiter masses. The planet-to-star mass ratio [(7 to 8) × 10 −3 ] is similar to that of other directly imaged planets. The planet’s atmospheric spectrum indicates an older, less cloudy analog of the previously imaged exoplanets around HR 8799.
Related Organisations
Hospital Universitário Da Universidade Federal Do Maranhão
Location: Brazil
自然科学研究機構国立天文台/National Astronomical Observatory Of Japan
Location: Japan
Related Funding Activities
Discovery Projects - Grant ID: DP140104065
Start Date: 05-2014
End Date: 12-2017
Amount: $389,000.00
Funder: Australian Research Council
View Funded ActivityDiscovery Projects - Grant ID: DP180103413
Start Date: 2018
End Date: 12-2021
Amount: $468,671.00
Funder: Australian Research Council
View Funded ActivityDiscovery Projects - Grant ID: DP220103782
Start Date: 09-2022
End Date: 08-2025
Amount: $420,000.00
Funder: Australian Research Council
View Funded Activity