OpticsInfoBase

Adapting AO systems for clinical Imaging

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMA1
• OSA Technical Digest (CD)
• Burns, Stephen; Zou, Weiyao; Zhong, Zhangyi; Huang, Gang; Qi, Xiaofeng
• Modern adaptive optics systems for retinal imaging represent a blend between optical design and software control. The problems faced for real-world clinical imaging include the need to...

Adaptive Optics at the LBT telescope: from NGS to LGS and interferometry

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMA2
• OSA Technical Digest (CD)
• Esposito, Simone; Hinz, Phil; Herbst, Tom; Rabien, Sebastian
• The paper reports the status and future development of Adaptive Optics at LBT. On sky results of NGS system are given together with a summary of LGS and interferometric AO systems...

CANARY MOAO demonstrator : on-sky first results

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMA3
• OSA Technical Digest (CD)
• Brangier, Matthieu; Vidal, Fabrice; Morris, Tim; Gendron, Eric; Hubert, Zoltan; Basden, Alastair; Rousset, Gérard; Myers, Richard; Chemla, Fanny; Longmore, Andy; Butterly, Tim; Dipper, Nigel; Dunlop, Colin; Fasola, Gilles; Geng, Deli; Gratadour, Damien; Henry, David; Huet, Jean-michel; Laporte, Philippe; Looker, Nik; Marteaud, Michel; Perret, Denis; Sevin, Arnaud; Shepherd, Harry; Talbot, Gordon; Younger, Eddy; Wilson, Richard W
• We present the first on-sky results of CANARY, the multi-object adaptive optics demonstrator of EAGLE.

Performance of an off-axis ophthalmic adaptive optics system with toroidal mirrors

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMA4
• OSA Technical Digest (CD)
• Liu, Zhuolin; Kocaoglu, Omer P; Jonnal, Ravi S; Wang, Qiang; Miller, Donald T
• Ophthalmic adaptive optics is commonly implemented with off-axis telescopes formed by spherical mirrors. As these systems often suffer from astigmatism, beam displacement and beam...

Expected performance of solar adaptive optics in large aperture telescopes

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMA5
• OSA Technical Digest (CD)
• Marino, Jose; Rimmele, Thomas
• We study the performance of solar adaptive optics (AO) in large aperture telescopes and find that the extended field-of-view of the wavefront sensor and large zenith angle operations...

The Durham AO Real-Time Controller and the CANARY Implementation

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMB1
• OSA Technical Digest (CD)
• Basden, Alastair
• A new real-time control system (the Durham Adaptive optics Real-time controller, DARC) was used with the MOAO demonstrator instrument CANARY. Available as an open-source release, the...

Gemini Planet Imager minimum-variance tip-tilt controllers

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMB2
• OSA Technical Digest (CD)
• Correia, Carlos; Véran, Jean-Pierre; Poyneer, Lisa
• Minimum-variance controllers for \emph{Gemini Planet Imager} tip-tilt modes are investigated and compared to optimised-gain integrators through time- and frequency-domain simulations,...

Fast Off-Line Kalman Filter Gain Computation for Astronomical Adaptive Optics Systems

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMB3
• OSA Technical Digest (CD)
• Massioni, Paolo; Kulcsar, Caroline; Raynaud, Henri-François; Conan, Jean-Marc
• We introduce a new procedure for quickly approximating the Kalman gain for the optimal control of large astronomical adaptive optics systems. A computational simplification is obtained...

Advanced NGS-mode control in NFIRAOS using split-tomography

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMB4
• OSA Technical Digest (CD)
• Correia, Carlos; Véran, Jean-Pierre; Herriot, Glen Herriot; Ellerbroek, Brent; Wang, Lianqi; Gilles, Luc; Boyer, Corinne
• Controllers based on simple and double integrators are compared to Linear-Quadratic-Gaussian controllers for the Natural-Guide Star loop of NFIRAOS, the 1st light multi-conjugate...

Discrete-Time Model for Adaptive Optics with Discrete-Time Atmospheric Model

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMB6
• OSA Technical Digest (CD)
• Looze, Douglas
• This paper models the incident wavefront of an AO system as being constant within each frame. It has shown that the performance degradation is almost insignificant for astronomical AO...

Adaptive Grazing Incidence X-Ray Optics

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMC1
• OSA Technical Digest (CD)
• Wirth, Allan; Pearson, David
• Active figure control will be necessary to meet the challenging requirements of the Gen-X optics. In this paper we present our adaptive grazing incidence mirror design and the results...

Advances in the analysis and design of adaptive optics

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMC2
• OSA Technical Digest (CD)
• Michels, Gregory; Genberg, Victor
• Opto-mechanical analysis and design techniques for development of adaptive optics are presented. Topics include actuator stroke limits, actuator failures, optimum placement of...

Novel Beacon Creation in an Adaptive Optics System

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMC3
• OSA Technical Digest (CD)
• Daly, Elizabeth M; Lambert, Andrew J; Dainty, J Chris
• We describe the use of supplementary active optics for beacon shaping in an adaptive optics system for the human eye. We determine the effects of such shaping on ...

Controlling Spatial Coherence in Multimode Fibers

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMC4
• OSA Technical Digest (CD)
• Kong, Fanting; Proscia, Nicholas V; Lee, Kotik K; Chen, Ying-Chih
• We demonstrate that the randomized output field of multimode fibers can be focused in the near field or collimated in the far field by wavefront shaping in the input or the output...

Laser microfabrication using adaptive optics: parallelization and aberration correction

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMC5
• OSA Technical Digest (CD)
• Salter, Patrick S; Jesacher, Alexander; Al-Wakeel, Hassan; Booth, Martin
• Pulsed lasers are used for sub micron scale fabrication. We employ adaptive optics for correction of focal depth induced aberrations and beam shaping. Adaptive multispot schemes are...

Photoacoustic-guided convergence of Light through Optically Diffusive Media

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: AMC6
• OSA Technical Digest (CD)
• Kong, Fanting; Silverman, Ronald H; Liu, Liping; Chitnis, Parag; Lee, Kotik K; Chen, Ying-Chih
• We report the use of photoacoustic signals originating from an optically absorptive target as feedback for shaping the incident wavefront to increase optical energy density at the...

Inverse problem approach to the detection of exoplanets in multi-wavelength data

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: APDP1
• OSA Technical Digest (CD)
• Devaney, Nicholas; Thiebaut, Éric
• Images obtained at different wavelengths may be used to discriminate faint exoplanets from residual speckle in the stellar PSF. We have developed an inverse problem approach to fit...

Practical Implementation of NGS Adaptive Optics PSF Reconstruction on Gemini/Altair & Keck II Systems

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: APDP2
• OSA Technical Digest (CD)
• Jolissaint, Laurent; Christou, Julian C; Neyman, Chris
• Initial results on implementation of an AO PSF reconstruction algorithm in bright NGS mode for the Gemini-N and Keck II systems are presented. Impact of the telescope and imager optics...

The Gemini Multi-Conjugate Adaptive System sees star light

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: APDP3
• OSA Technical Digest (CD)
• Rigaut, Francois; Neichel, Benoit; Bec, Matthieu; Boccas, Maxime; d'Orgeville, Celine; Fesquet, Vincent; Galvez, Ramon; Gausachs, Gaston; Trancho, Gelys; Trujillo, Chad; Edwards, Michelle; Carrasco, Rodrigo
• The Gemini Multi-Conjugate Adaptive Optics system (GeMS) has been in commissioning in the first 5 months of 2011. In this paper we present the first results of this commissioning...

Phase sensor for solar adaptive-optics

• Abstract
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• Adaptive Optics: Methods, Analysis and Applications (AOPT) 2011 paper: APDP4
• OSA Technical Digest (CD)
• Kellerer, Aglae
• A new wavefront sensor for solar adaptive optics is presented. The measured quantity is directly proportional to the wavefront phase - no additional computation is required. The method...