Strehl PowerPoint PPT Presentations

The wave aberration function(OPD), W(x,y), is defined as the distance, in ... ray as a function of the transverse coordinates (x,y) of the ray intersection ...

Title: The goal of adaptive optics: maximize Strehl Author: Virginia Gavel Last modified by: Donald Gavel Created Date: 12/30/2001 9:24:50 PM Document presentation format

Peak Strehl not reached within nominal focussing range of OGSE, PSF FWHM ~ 30% too wide. ... test, but confirms the focussing requirements for best performance ...

... as delivering stable high Strehl ratio infrared images in moderate field-of ... of the scientific advances in high-resolution imaging are currently thought to be. ...

Exploration Scavenging. Alex Strehl. Joint work with John Langford and Jenn ... We use exploration scavenging to evaluate policies that reorder the slate chosen ...

MCAO prototype toward ELT (3-8 stars, high Strehl over 2 in K) Visible Wavefront sensors : 5 CCD Marconi 50 2 AO correction methods 3 + 2 CCD complete heads

UCLA Mechanical and Aerospace Engineering. Adaptive Control for Adaptive Optics (AO) ... UCLA Mechanical and Aerospace Engineering. Average Closed-Loop Strehl ...

... and S3 values generated from noise-free simulations as part of the CfAO Strehl study. ... Further analysis on noisy simulations needed. ...

The First Adaptive Optics High Resolution Mid IR Imaging of ... present high resolution very high strehl ratio (0.98 0.03) Mid-IR images of RV Boo and AC Her. ...

... Telescope. Motohide Tamura, Lyu Abe, Hiroshi Suto, Jun-ichi Morino, Ryo Kandori, Hideki ... Pixel scale : 0.010 arcsec/pix. Strehl ratio : 0.6 (J), 0.7 (H) ...

CCD wavefront sensing system for the ESO Multi-conjugate Adaptive Optics ... to 8 natural guide stars and laser guide star, so as to achieve a high-Strehl ...

... model instrument whose wavefront aberration is represented with random ... Note that change in telescope aberration due to the motion of focusing lens ...

MAORY Multi conjugate Adaptive Optics RelaY for the E-ELT Emiliano Diolaiti (INAF Osservatorio Astronomico di Bologna) On behalf of the MAORY Consortium

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8:00 AO UI Demonstration 9:00 Introductions to AO team 9:05 AOWG Chair Selection 9:15 Review Agenda (make changes?) 9:20 Review Planned & Potential AO Projects

Strategic Planning for Adaptive Optics at Keck

Show Gemini. AO animation. Measuring AO performance. Intensity. x ... Gemini comparison of Shack-Hartmann and curvature ... Vertical profile of turbulence ...

At large telescopes, dominant AO error comes. from the high ... (SQS) is not optimal even for 8-m telescopes ... internal monitor on 8-m telescopes ...

Sunrise Team Meeting. Freiburg, Sept. 1-3, 2004. Image Quality in SUNRISE ... Noise and ripple are not considered. Defocus. D = 1 m ; central obscuration=0.23 ...

Other Contributors: L. Close, J. Brynnel, J. Farinato, E. Brunetto, S. Stroebele, R. Reiss, E. Marchetti, D. Bonaccini Calia T. Craven-Bartle, M. Comin,

OTF(r) = e-Dapl(r)/2 OTFgs(r) Turbulence profile. Cn2(z) Zenith angle. z. Obs. wavelength. l. Aperture diameter. D. G.S. angular offset. q. Dapl(r) depends on ...

Interferometer: vibration reduction (FY02/03) ... Interferometer: K1 real-time processor upgrade to Mercury PowerPC (FY03) ... Interferometer: wavefront ...

1- Principe de la m thode : Surface de r f rence. 2- Algorithmes de ' phase shift ' 3 ... interf rom trique. d'un syst me optique. Syst me optique tudier ...

What is the Wavefront? What is the Wave Aberration? PowerPoint Presentation Wave Aberration: Astigmatism Wave Aberration: Coma Wave Aberration: ...

Lasers for the Next-Generation. Adaptive Optics System. for the Keck Observatory. Donald Gavel. on behalf of the NGAO concept study group. Claire Max, Peter ...

Short exposure images of the stars Gamma Perseus and Alpha ... Without atmosphere, the telescope forms a perfect 'diffraction-limited' ... Anti-reflection ...

Atmospheric Turbulence and Astronomical Adaptive Optics

Extreme Contrast Adaptive Optics with Extremely Large Telescopes Richard Dekany Caltech Optical Observatories 23 July 2004 2004 Michelson Summer School

Title: No Slide Title Author: J.S.Lawrence Last modified by: Michael Burton Created Date: 8/23/2000 11:50:54 AM Document presentation format: On-screen Show

Experimental evaluations of the OTA pointing error due to the micro-disturbances ... theodolite. dolly. S/C installed on a dolly in the tower ...

Title: module OA -- cours 1 Author: Thierry Fusco Last modified by: Onera Created Date: 12/14/2005 9:32:34 PM Category: Cours Document presentation format

VLT+NACO monitoring of 14 ULIRGs out to D ~ 300 Mpc. Historical SN in NGC 7714 Found in archival UKIRT K image from Sep 1998. Optimal Image Subtraction Allard ...

Camera Signal to Noise Ratio (SNR) Metric ... Lens and. Splitter. p/2 -p/2 ... Zernike SRI seems to be very sensitive to camera noise. ...

C.Doucet, P-O Lagage, E. Pantin (CEA Saclay SAp) E. Habart (IAS, Orsay) ... Doucet et al. 2006,submitted A&A. PAH stochastically heated by UV radiation from the star ...

Homework number 3 due Tues Jan 29 (assignment is on the web) Reading assignments for Thurs January 24th and ... PDF files and discussion/chat rooms are on WebCT ...

... capability at different system costs will determine ... key unique attributes of NGAO, relative to other AO systems and spacecraft available at the same epoch ...

Wind buffeting of telescope (hard to model a priori) Atmospheric turbulence ... Keck Telescope: D = 10 m, r0 = 0.2 m, l = 2 microns ...

A graph partitioning tool METIS is used to perform balanced clustering (OPOSSUM) ... OPOSSUM (Optimal partitioning of Similarity space using Metis) ...

Subaru. Keck. VLT. VLT-LGS. Hokupa'a. 36. 85. 2W LGS. CP Hokupa'a. 85 ... Subaru. Keck. VLT. VLT-LGS. Hokupa'a. 36. 85. 2W LGS. CP Hokupa'a. 85. 10W LGS ...

Title: Phasenmodulation und zeitliches Ma schneidern ultrakurzer Laserpulse Last modified by: Hertel Created Date: 1/1/2004 3:38:05 PM Document presentation format

The Gemini Adaptive Optics Program Revisited. Multi-Conjugate ... MK turbulence profile. Field of view ~ 1.2' H band. November 15, 1999. Gemini Board. 12 ...

http://home.earthlink.net/~burrjaw/atm_math.lwp/atm_math.htm. by James Burrows ... expanded table on www.rfroyce.com/standards.htm. Mirror Quality Part II ...

Galaxy assembly & star formation history. Nearby Active Galactic Nuclei ... Replanning & completing the preliminary design in a timely fashion ...

Modelo de formaci n de im genes a trav s de pantallas de fase compensadas. Manuel ... (Photon statistics in compensated wavefronts. Canales, Cagigal. JOSA 1999) ...

The Atacama Cosmology Telescope ACT

Optimal Design of Adaptive Optics Based Systems Using High Fidelity MEMS Deformable Mirror Models

High-resolution observations of the photosphere Convection and Magneto-Convection ... 3.2.1. Temperature and Velocity Structure of the Photosphere and Chro ...

ExAO experiments can be done today. with a 'well-corrected sub-aperture' (WCS) ... oversized and off-centered Lyot stop and. inexact p phase-shift. measured 'ideal' ...

Principles, Performance and Limitations of Multi-conjugate Adaptive Optics. F.Rigaut 1, B.Ellerbroek 1 and R.Flicker 2. 1Gemini Observatory. 2Lund Observatory ...

Physical optics the focus is a distribution of light known as a point spread function. We can control the point spread function ... Fabrication of the filters ...

Title: Micromachined MEMS Deformable Mirror Systems Author: Thomas Bifano Last modified by: Paula Towle Created Date: 6/23/1999 4:57:24 PM Document presentation format

... Cylindrical refractive error (astigmatism) Spherical aberration Coma Higher-order aberrations Chromatic Aberrations Depends upon the color or light ...

Guide Star. Companion. OTFgs * ATF = OTFoa. Turbulence theory. Cn2 profile ... Guide star configuration. How the adaptive mirrors are deployed. Zenith angle ...

Completed 'zeroeth' cool down for thermal tests. First cool down ... GSAOI Guide Star Geometry. 5 LGS. 1-3 Opt. NGS. 1-4 NIR NGS. GSAOI Performance. 20.2. 21.0 ...

ATMOSPHERIC TURBULENCE IN ASTRONOMY Marc Sarazin European Southern Observatory List of Themes How to find the ideal site...and keep it good? Optical Propagation ...

What questions to ask when you get to the telescope. Observing ... Movie: NGS to LGS AO. Page 11. Structure in extended objects ... Get twilight flats. Page 37 ...