Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Laser guide stars and adaptive optics for large astronomical telescopes
View through CrossRef
An adaptive optics (AO) system using a high power laser tuned to the sodium resonance to make a bright guide star has been investigated and is under development. The laser for this system has been developed for the Atomic Vapor Laser Isotope Separation program and produces over a kilowatt of power with excellent beam quality, spectral control, and stability. The AO system uses a wavefront sensor based upon the Hartmann technique with an image intensified, CCD camera, wavefront reconstruction algorithm, fast steering mirror for tip-tilt control, and a deformable mirror for wavefront correction. The AO system will be applied to a 1-m class telescope located at LLNL adjacent to the AVLIS laser facility.
Title: Laser guide stars and adaptive optics for large astronomical telescopes
Description:
An adaptive optics (AO) system using a high power laser tuned to the sodium resonance to make a bright guide star has been investigated and is under development.
The laser for this system has been developed for the Atomic Vapor Laser Isotope Separation program and produces over a kilowatt of power with excellent beam quality, spectral control, and stability.
The AO system uses a wavefront sensor based upon the Hartmann technique with an image intensified, CCD camera, wavefront reconstruction algorithm, fast steering mirror for tip-tilt control, and a deformable mirror for wavefront correction.
The AO system will be applied to a 1-m class telescope located at LLNL adjacent to the AVLIS laser facility.
Related Results
Astronomical research in Kharkiv at the end of the 19th century – the first half of the 20th century
Astronomical research in Kharkiv at the end of the 19th century – the first half of the 20th century
The main milestones of the formation and development of astronomical science in Kharkiv during 1883–1945 are reconstructed on the example of the activities of the astronomical obse...
LEO-to-GNSS Laser Interferometer for Space Geodesy with Laser DORIS and Laser SAR
LEO-to-GNSS Laser Interferometer for Space Geodesy with Laser DORIS and Laser SAR
In order to increase the accuracy of precise orbit determination for a single satellite or satellites in LEO formation, we propose using a LEO-to-GNSS laser interferometer, what we...
Laser Spectrometric Techniques in Analytical Atomic Spectrometry
Laser Spectrometric Techniques in Analytical Atomic Spectrometry
Abstract
Laser light has a number of spectacular properties that make it useful for analytical spectrometry. One is that it has a high directionality (i.e. i...
Climate change drives degradation of future observations with ground-based telescopes
Climate change drives degradation of future observations with ground-based telescopes
<p>Exoplanet observations with ground-based instruments are subject to climate conditions on Earth. Therefore, one important aspect in site selection for ground-based...
Chandra X-ray analysis of Herbig Ae/Be stars
Chandra X-ray analysis of Herbig Ae/Be stars
ABSTRACT
Herbig Ae/Be (HAeBe) stars are intermediate-mass pre-main-sequence stars, characterized by infrared (IR) excess and emission lines. They are observed to emi...
Perspective and potential of smart optical materials
Perspective and potential of smart optical materials
Abstract
The increasing requirements of hyperspectral imaging optics, electro/photo-chromic materials, negative refractive index metamaterial optics, and miniatur...
Design of a portable observatory control system
Design of a portable observatory control system
In this thesis, we synthesize the development of a new concept of operation of small robotic telescopes operated over the Internet. Our design includes a set of improvements in con...
Double resonant sum-frequency generation in an external-cavity under high-efficiency frequency conversion
Double resonant sum-frequency generation in an external-cavity under high-efficiency frequency conversion
In recent years, more than 90% of the signal laser power can be up-converted based on the high-efficiency double resonant external cavity sum-frequency generation (SFG), especially...