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Showing 81-100 of 10,000 results

  1. Direct Detection of Exoplanets with Future Adaptive Optics Systems

    Directly imaging extrasolar planets will greatly complement the indirect methods of planet search. The next-generation adaptive-optics instruments...
    Claire Moutou, Anne-Marie Lagrange, ... David Mouillet in Science with Adaptive Optics
    Conference paper

  2. Preliminary Commissioning Results of Altair

    Altair is the facility adaptive optics (AO) system of the Gemini North Telescope. It was designed and built at the National Research Council of...
    Jean-Pierre Véran, François Rigaut, ... Brent Ellerbroek in Science with Adaptive Optics
    Conference paper

  3. An Adaptive Optics Search for Binaries in the Orion Nebula Cluster

    We report on the results of a binary survey in the outer parts of the Orion Nebula Cluster, 0.7 to 2 pc from the cluster center. The results should...
    Rainer Köhler, Monika G. Petr-Gotzens, ... Andreas Quirrenbach in Science with Adaptive Optics
    Conference paper

  4. Spatially Resolved Spectroscopy of Proto-Planetary Nebulae

    We present 3 μm spectroscopy of three carbon-rich proto-planetary nebulae. Spectroscopy with high spatial resolution afforded by the Subaru adaptive...
    Miwa Goto, W. Gässler, ... Hiroshi Terada in Science with Adaptive Optics
    Conference paper

  5. Coupled Adaptive Optics and Integral Field Spectroscopy of Pre-Main-Sequence Stars

    We present observations done with the OASIS instrument and the PUE’O adaptive optics system at the Canada-France-Hawaii Telescope. By combining the...
    Paulo J.V. Garcia, Catherine Dougados, Pierre Ferruit in Science with Adaptive Optics
    Conference paper

  6. PIGS - A New Wavefront Sensor Concept for ELTs

    Adaptive Optics Systems for Extremely Large Telescopes (ELT) will need new wavefront sensing concepts to deploy their full capabilities. In this...
    S. Kellner, R. Ragazzoni, ... A. Ghedina in Science with Adaptive Optics
    Conference paper

  7. The Nucleus of Centaurus A with NACO

    At less than 4 Mpc away, Centaurus A (NGC 5128) is the nearest massive elliptical galaxy, the nearest radio galaxy, and the nearest recent merger. It...
    Nadine Häring, Hans-Walter Rix, ... Klaus Meisenheimer in Science with Adaptive Optics
    Conference paper

  8. Dissipative Solitons in Reaction-Diffusion Systems

    A major goal of natural science is to understand the formation of spatiallyextended patterns in all kinds of physical, chemical, biological and other...
    H.-G. Purwins, H.U. Bödeker, A.W. Liehr in Dissipative Solitons
    Chapter

  9. Dissipative Solitons in Semiconductor Optical Amplifiers

    We present recent experimental and numerical results for dissipative propagating spatial solitons in periodically-patterned semiconductor optical...
    E. Ultanir, G.I. Stegeman, ... F. Lederer in Dissipative Solitons
    Chapter

  10. Solitary Waves of Nonlinear Nonintegrable Equations

    Our goal is to find closed form analytic expressions for the solitary waves of nonlinear nonintegrable partial differential equations. The suitable...
    R. Conte, M. Musette in Dissipative Solitons
    Chapter

  11. Spatial Resonator Solitons

    Spatial solitons can exist in various kinds of nonlinear optical resonators with and without amplification. In past years, different types of these...
    V.B. Taranenko, G. Slekys, C.O. Weiss in Dissipative Solitons
    Chapter

  12. Stability Analysis of Pulses via the Evans Function: Dissipative Systems

    Linear stability analysis of pulses is considered in this review chapter. The Evans function is an analytic tool whose zeros correspond to...
    T. Kapitula in Dissipative Solitons
    Chapter

  13. Dissipative Solitons in the Complex Ginzburg-Landau and Swift-Hohenberg Equations

    We explain the meaning of dissipative solitons and place them in a framework which shows their use in various scientific fields. Indeed, dissipative...
    N. Akhmediev, A. Ankiewicz in Dissipative Solitons
    Chapter

  14. Dissipative Solitons in Pattern-Forming Nonlinear Optical Systems: Cavity Solitons and Feedback Solitons

    Many dissipative optical systems support patterns. Dissipative solitons are generally found where a pattern coexists with a stable unpatterned state....
    T. Ackemann, W.J. Firth in Dissipative Solitons
    Chapter

  15. Temporal Multi-Soliton Complexes Generated by Passively Mode-Locked Lasers

    We review various experimental observations of multiple pulsing in passively mode-locked lasers and give several possible mechanisms that have been...
    J.M. Soto-Crespo, Ph. Grelu in Dissipative Solitons
    Chapter

  16. 4×4 Transfer Matrix T p for Isotropic Films

    Isotropic materials can be treated much easier and by simpler equations than through the 4×4 approach. However, the isotropic solution within the 4×4...
    Mathias Schubert in Infrared Ellipsometry on Semiconductor Layer Structures
    Chapter

  17. Drilling of Metals

    The use of ultrashort laser pulses for drilling of metals is highly promising with respect to reduced melt production and recast formation, as well...
    Detlef Breitling, Christian Föhl, ... Vitali Konov in Femtosecond Technology for Technical and Medical Applications
    Chapter

  18. Interaction with Atmosphere

    Contrary to longer-pulsed laser irradiation, ultrashort laser pulses in the femto- and low picosecond-pulse duration domains are expected to be too...
    Detlef Breitling, Sergei Klimentov, Friedrich Dausinger in Femtosecond Technology for Technical and Medical Applications
    Chapter

  19. Dynamics of a Photoexcited Hydrated Electron

    Combining photon-echo and frequency-resolved pump-probe techniques with extremely short laser pulses that consist of only few optical cycles, we...
    Maxim S. Pshenichnikov, Andrius Baltuška, Douwe A. Wiersma in Few-Cycle Laser Pulse Generation and Its Applications
    Chapter

  20. Optical Frequency-Comb Generation and High-Resolution Laser Spectroscopy

    The new alliance between the time and frequency domains in laser spectroscopy has made it possible to develop ultrafast counting schemes that can...
    Thomas Udem, Ronald Holzwarth, ... Theodor Hänsch in Few-Cycle Laser Pulse Generation and Its Applications
    Chapter
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