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Center for
Adaptive Optics
Newsletter
Volume 2

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In this Volume:

Sharper Image with Adaptive Optics

Low Cost Wavefront Correctors for Vision Science Adaptive Optics

Creating and Detecting Rayleigh Laser Guide Stars

People and Profiles

From the Director

Year 2 - NSF Site Visit a week after Sept 11

First Light for Keck Laser Guide Star

Astronomers Observe Distant Galaxies More Clearly

Education and Human Resource Activities

Education and Human Resources Notices

Upcoming AO Related Conferences

CfAO visits the USAF's Advanced Electro-Optical System site at Maui and Gemini Observatory – January 2002.


Sharper Image with Adaptive Optics

Stars are so far away that they would appear as "points" of light in a telescope, if it weren't for the effects of distortion in the earth's atmosphere. In the figure on the left, the inset (in the upper left hand corner) shows an uncorrected and an adaptive optics image of a star, taken on Lick Observatory's 3 meter telescope. The white color represents the highest intensities, and orange-red the lowest intensities. The uncorrected image shows the deleterious effects of atmospheric blurring which are to a large extent removed by adaptive optics.

The larger surface plot (lower image) contains the same information as the "picture", but now the height of the "peaks" represents the intensity of the light at each point on the detector.

The surface plot is useful because it shows that adaptive optics not only makes images smaller, it also greatly increases their peak intensity because all the light is now falling on a very small area of the detector.

Upcoming AO Related Conferences

Engineering the Eye” June 13-15, 2002 Symposium. at the Center for Vision Science University of Rochester.
Topics include the study of eye movements to perceptual constancy, information coding and applications of Adaptive Optics to advanced instrumentation for eye disease diagnostics and vision correction.
For more info.

Call for Papers
The International Society for Optical Engineering - Astronomical Telescopes and Instrumentation is holding a conference on the
22-28 August 2002, at the Hilton Waikoloa Village Hotel, Hawaii
General Chair: J. Roger P. Angel, Steward Observatory/Univ. of Arizona
Deputy General Chair: James B. Breckinridge, National Science Foundation
Sessions will feature:
Astronomy with Large Telescopes
UVOIR Ground Instruments
Astronomy Information Technologies
Space Telescopes and Instruments
Millimeter and Submillimeter Detectors
Astronomy Outside the EM Spectrum
Astrobiology
http://spie.org/Conferences/calls/02/as/


 
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