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Session 42 - Ground-Based Optical Telescopes & Instruments.
Display session, Tuesday, January 14
Metropolitan Ballroom,

[42.08] First Significant Image Improvement from the Lick Observatory Laser Guide Star Adaptive Optics System

S. S. Olivier, C. E. Max, J. An, K. Avicola, H. D. Bissinger, J. M. Brase, H. W. Friedman, D. T. Gavel, B. Macintosh, K. E. Waltjen (LLNL)

Significant image improvement has recently been demonstrated with a laser guide star adaptive optics system on the 3 m Shane telescope at Lick Observatory located on Mount Hamilton, near San Jose, California. These results represent the first ever achieved using high-order adaptive optics and a sodium-layer laser guide star. Corrected images recorded at a wavelength of 2.2 microns showed a factor of 3 increase in peak intensity and a factor of 2.4 decrease in full width at half maximum to less than 1/3 arc second.

The Lick Observatory laser guide star adaptive optics system was developed at Lawrence Livermore National Laboratory. The system is based on a 127-actuator continuous-surface deformable mirror, a Hartmann wavefront sensor equipped with a fast-framing low-noise CCD camera, and a pulsed solid-state-pumped dye laser tuned to the atomic sodium resonance line at 589 nm.

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Program listing for Tuesday