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1–20 von 114 Ergebnissen
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    Satellite Laser Communication and Adaptive Optics

    Roberts, Lewis C | NTRS | 2020
    Adaptive optics enables higher data rates for satellite laser communication. It has recently been demonstrated and several future missions ...

    Subnanoradian, Ground-Based Tracking of Spaceborne Lasers

    Treuhaft, R. N. | NTRS | 1993
    Schlagwörter: Lasers And Masers , lasers optical channels ground-based angular tracking hardware Table Mountain

    Tests of gravity Using Lunar Laser Ranging

    Merkowitz, Stephen M. | NTRS | 2010
    Lunar laser ranging (LLR) has been a workhorse for testing general relativity over the pa~t four decades. The three retrorefiector arrays ...

    The Mars laser communication demonstration

    DePaula, Ramon / Zingales, Samuel H. / Fitzgerald, Richard J. et al. | NTRS | 2004
    This paper provides the status of the Mars Laser Communication Demonstration Project, a joint project between NASA's Goddard Space Flight ...

    Space Qualification of Laser Diode Arrays

    Troupaki, Elisavet / Kashem, Nasir B. / Allan, Graham R. et al. | NTRS | 2005
    laser missions have base-lined diode-pumped Nd:YAG lasers that generally use quasi-constant wave (QCW), 808 nm Laser Diode Arrays (LDAs). Our ...
    Schlagwörter: Lasers And Masers

    Laser Prevention of Earth Impact Disasters

    Campbell, J. / Smalley, L. / Boccio, D. et al. | NTRS | 2002
    infrastructure of high-energy laser stations and other secondary mitigation options, we can deflect inbound asteroids, meteoroids, and comets and prevent ...
    Schlagwörter: Lasers And Masers

    First Demonstration on Direct Laser Fabrication of Lunar Regolith Parts

    Balla, Vamsi Krishna / Roberson, Luke B. / OConnor, Gregory W. O. et al. | NTRS | 2010
    , using lasers. We show that raw lunar regolith can be processed at laser energy levels as a low as 2.12 J mm-2 resulting in nanocrystalline and ...

    Mapping Mars' Topography With Laser Altimetry

    Smith, David E. | NTRS | 2000
    observations of the planet and the laser altimeter has been operating almost continuously since that time. The instrument has provided 450 million ...

    Investigation of Gas Seeding for Planar Laser-Induced Fluorescence in Hypersonic Boundary Layers

    Arisman, C. J. / Johansen, C. T. / Bathel, B. F. et al. | NTRS | 2015
    Numerical simulations of the gas-seeding strategies required for planar laser-induced fluorescence in a Mach 10 (approximately Mach 8.2 ...

    Laser ranging to the Moon, Mars and beyond

    Murphy, Thomas W. Jr. / Nordtvedt, Kenneth L. Jr. / Anderson, John D. et al. | NTRS | 2004
    This paper discusses the current state and the future improvements in the tests of relativistic gravity with Lunar Laser Ranging (LLR). We ...

    Laser Range and Bearing Finder for Autonomous Missions

    Granade, Stephen R. | NTRS | 2004
    . has developed a wide-angle laser range and bearing finder (RBF) for autonomous space missions. The laser RBF has a number of features that ...

    A guide to the literature on carbon dioxide lasers /1 January 1964 - 30 June 1968/

    Flagiello, S. C. / Mc Day, J. B. / Mc Elroy, J. H. et al. | NTRS | 1968
    Literature search on carbon dioxide lasers, bibliography with abstracts ...

    Overview of the Mars laser communication demonstration project

    DePaula, Ramon / Zingales, Samuel H. / Fitzgerald, Richard J. et al. | NTRS | 2003
    This paper provides an overview of the Mars Laser Communications Demonstration Project, a joint project between NASA’s Goddard Space Flight ...

    Overview of the MARS Laser Communications Demonstration Project

    Edward, Bernard L. / Townes, Stephen A. / Bondurant, Roy S. et al. | NTRS | 2003
    This paper provides an overview of the Mars Laser Communications Demonstration Project, a joint project between NASA s Goddard Space Flight ...

    Analysis of the Laser Propelled Lightcraft Vehicle

    Feikema, Douglas | NTRS | 2000
    Advanced propulsion research and technology require launch and space flight technologies, which can drastically reduce mission costs. Laser ...
    Schlagwörter: Lasers And Masers

    Ablative Laser Propulsion Using Multi-Layered Material Systems

    Nehls, Mary / Edwards, David / Gray, Perry et al. | NTRS | 2002
    Experimental investigations are ongoing to study the force imparted to materials when subjected to laser ablation. When a laser pulse of ...

    Photon Flux Amplification for Enhancing Photonic Laser Propulsive Forces

    Gray, Perry A. / Carruth, M. Ralph, Jr. / Edwards, David L. et al. | NTRS | 2002
    An enhancement to the available force from a solar/laser sail is being investigated. This enhancement involves the use of a high power ...
    Schlagwörter: Lasers And Masers