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Your search keyword '"Michael Lloyd-Hart"' showing total 4 results
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4 results on '"Michael Lloyd-Hart"'

1. Ground layer wavefront reconstruction using dynamically refocused Rayleigh laser beacons

Author

Christoph Baranec, Michael Lloyd-Hart, N. Mark Milton, Miguel Snyder, Thomas Stalcup, J. Roger P. Angel, and Nicole Putnam

Subjects
Physics, Wavefront, business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, Physics::Optics, Wavefront sensor, Laser, law.invention, Beacon, Telescope, symbols.namesake, Optics, law, symbols, Tomography, Rayleigh scattering, Adaptive optics, business
Abstract

Experiments have been carried out at the MMT telescope to validate ground layer wavefront reconstruction using five dynamically refocused Rayleigh laser beacons. Here we quantify the wavefront improvement expected from ground layer adaptive optics correction.

Published
2005

2. Development of Multi-Laser Guide Star Adaptive Optics Techniques for Extremely Large Telescopes

Author

N. M. Milton, Christoph Baranec, T. Stalcup, Michael Lloyd-Hart, Nicole Putnam, James Roger P. Angel, and Miguel Snyder

Subjects
Physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Active optics, Astrophysics::Cosmology and Extragalactic Astrophysics, Laser, law.invention, Telescope, Stars, Laser guide star, Giant Magellan Telescope, law, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Adaptive optics, Astrophysics::Galaxy Astrophysics, Constellation
Abstract

We outline ongoing work at the MMT telescope to develop altitude-conjugated adaptive optics using a constellation of laser guide stars. We describe how the new techniques will be applied to the planned Giant Magellan Telescope.

Published
2005

3. Disk harmonic functions for adaptive optics simulations

Author

N. Mark Milton and Michael Lloyd-Hart

Subjects
Physics, symbols.namesake, Classical mechanics, Harmonic function, Zernike polynomials, symbols, Degrees of freedom (statistics), Basis function, Harmonic (mathematics), Adaptive optics, Physical optics, Topology, Deformable mirror
Abstract

We investigate the disk harmonic basis functions as an alternative to the Zernike basis functions and their application to fast, analytic adaptive optics simulations which require a large number of degrees of freedom.

Published
2005

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