Showing 701 - 720 results of 918 for search '"adaptive optics"', query time: 0.20s Refine Results
  1. 701

    An FPGA Architecture for Extracting Real-Time Zernike Coefficients from Measured Phase Gradients by Moser Steven, Lee Peter, Podoleanu Adrian

    Published 2015-04-01
    “…Zernike modes are commonly used in adaptive optics systems to represent optical wavefronts. …”
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    Article
  2. 702

    Active Optics–Freeform Segment Mirror Replications from a Deformable Matrix by Gerard R. Lemaitre, Patrick Lanzoni

    Published 2022-03-01
    “…Such a system is well suited for Laser Guide Star adaptive optics applications in modern astronomy.…”
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    Article
  3. 703

    High-resolution structural and functional retinal imaging in the awake behaving mouse by Guanping Feng, Aby Joseph, Kosha Dholakia, Fei Shang, Charles W. Pfeifer, Derek Power, Krishnan Padmanabhan, Jesse Schallek

    Published 2023-05-01
    “…Here we characterize a novel head-fixed preparation that enables high-resolution adaptive optics retinal imaging at the single-cell level in awake-behaving mice. …”
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    Article
  4. 704

    Efficient methodology with potential uses of Fresnel diffractometry for real-time study of uniaxial nematic liquid crystal phase transitions by Narges Madadi, Mohammad Amiri

    Published 2023-02-01
    “…Recently, they have also been utilised in adaptive optics, active switching, and next-generation displays for augmented and virtual reality. …”
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    Article
  5. 705

    Four-wave mixing on thermal and resonant nonlinearities with feedback for object and signal waves by Aleksandr А. Akimov, Valery V. Ivakhnik, Kseniya G. Kazakova

    Published 2023-07-01
    “…The need to create highly efficient four-wave radiation converters in order to use them in adaptive optics systems, for real-time processing of complex spatio-temporal fields, in interferometry, quantum cryptography, etc. requires along with the use of traditional methods to increase the efficiency of such converters by increasing the interaction length, radiation power density, effective value of the nonlinear susceptibility of the development of new methods. …”
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    Article
  6. 706
  7. 707

    Within-subject variability in human retinal nerve fiber bundle width. by William H Swanson, Brett J King, Stephen A Burns

    Published 2019-01-01
    “…To assess within-subject variability as a potential source of selection bias in measurements of RNFB width, we used an adaptive optics scanning laser ophthalmoscope (AOSLO) to measure widths of individual RNFBs in one eye each of 11 young adults in good ocular health. …”
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    Article
  8. 708

    Simulating thick atmospheric turbulence in the lab with application to orbital angular momentum communication by Brandon Rodenburg, Mohammad Mirhosseini, Mehul Malik, Omar S Magaña-Loaiza, Michael Yanakas, Laura Maher, Nicholas K Steinhoff, Glenn A Tyler, Robert W Boyd

    Published 2014-01-01
    “…We also demonstrate that standard adaptive optics methods can be used to mitigate many of the effects of thick atmospheric turbulence.…”
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    Article
  9. 709
  10. 710

    Collision kernels from velocity-selective optical pumping with magnetic depolarization by Bhamre, T., Kominis, I. K., McGuyer, B. H., Happer, W., Marsland, Robert Alvin

    Published 2014
    “…The range of pressures and transverse fields used simulate the optical pumping regime pertinent to sodium guidestars employed in adaptive optics. We measure the precession of spin-velocity modes under the application of transverse magnetic fields, simulating the natural configuration of mesospheric sodium optical pumping in the geomagnetic field. …”
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    Article
  11. 711
  12. 712
  13. 713

    Unveiling the central parsec region of an AGN: the Circinus nucleus in the near infrared with the VLT by Prieto, M, Meisenheimer, K, Marco, O, Reunanen, J, Contini, M, Clenet, Y, Davies, R, Gratadour, D, Henning, T, Klaas, U, Kotilainen, J, Leinert, C, Lutz, D, Rouan, D, Thatte, N

    Published 2004
    “…VLT J- to M\p-band adaptive optics observations of the Circinus Galaxy on parsec scales resolve a central bright Ks-band source with a FWHM size of 1.9 $\pm$ 0.6 pc. …”
    Journal article
  14. 714

    Fixational eye movements - keeping the eyes on target by Hauperich, AK

    Published 2019
    “…</p> <p>Two new microsaccade detection methods are presented: the binocular correlation method most suited to data from video-based eye trackers and the monocular microsaccade detection method suited to microsaccade detection from high resolution adaptive optics eye tracking. These methods are systematically compared to the established standard method in the field by (Engbert & Kliegl, 2003) using the F1 score of the precision-recall metric. …”
    Thesis
  15. 715

    The Gemini NICI Planet-Finding Campaign: Discovery of a Close Substellar Companion to the Young Debris Disk Star PZ Tel by Biller, B, Liu, M, Wahhaj, Z, Nielsen, E, Close, L, Dupuy, T, Hayward, T, Burrows, A, Chun, M, Ftaclas, C, Clarke, F, Hartung, M, Males, J, Reid, I, Shkolnik, E, Skemer, A, Tecza, M, Thatte, N, Alencar, S, Artymowicz, P, Boss, A, Pino, E, Gregorio-Hetem, J, Ida, S, Kuchner, M

    Published 2010
    “…We report the discovery of a tight substellar companion to the young solar analog PZ Tel, a member of the Beta Pictoris moving group observed with high contrast adaptive optics imaging as part of the Gemini NICI Planet-Finding Campaign. …”
    Journal article
  16. 716

    Unveiling the central parsec region of an active galactic nucleus: The circinus nucleus in the near-infrared with the very large telescope by Almudhna Prieto, M, Meisenheimer, K, Marco, O, Reunanen, J, Contini, M, Clenet, Y, Davies, R, Gratadour, D, Henning, T, Klaas, U, Kotitanien, J, Leinert, C, Lutz, D, Rouan, D, Thatte, N

    Published 2004
    “…VLT J- to M'-band adaptive optics observations of the Circinus galaxy on parsec scales resolve a central bright Ks-band source with a FWHM size of 1.9 ± 0.6 pc. …”
    Journal article
  17. 717

    Planet Hunters X: Searching for nearby neighbors of 75 planet and eclipsing binary candidates from the K2 Kepler extended mission by Schmitt, J, Tokovinin, A, Wang, J, Fischer, D, Kristiansen, M, LaCourse, D, Gagliano, R, Tan, A, Schwengeler, H, Omohundro, M, Venner, A, Terentev, I, Schmitt, A, Jacobs, T, Winarski, T, Sejpka, J, Jek, K, Boyajian, T, Brewer, J, Ishikawa, S, Lintott, C, Lynn, S, Schawinski, K, Weiksnar, A

    Published 2016
    “…We present high resolution observations of a sample of 75 K2 targets from Campaigns 1-3 using speckle interferometry on the Southern Astrophysical Research (SOAR) telescope and adaptive optics (AO) imaging at the Keck II telescope. …”
    Journal article
  18. 718

    Improved dynamical constraints on the mass of the central black hole in NGC 404 by Nguyen, D, Seth, A, den Brok, M, Neumayer, N, Cappellari, M, Barth, A, Caldwell, N, Williams, B, Binder, B

    Published 2017
    “…We use Jeans modeling to fit this mass model to adaptive optics stellar kinematic observations from Gemini/NIFS. …”
    Journal article
  19. 719

    Four faint T dwarfs from the UKIRT infrared deep sky surveys (UKIDSS) southern stripe by Chiu, K, Liu, M, Jiang, L, Allers, K, Stark, D, Bunker, A, Fan, X, Glazebrook, K, Dupuy, T

    Published 2008
    “…The T7.5 dwarf appears to be single based on 0.05-arcsec images from Keck laser guide star adaptive optics. The sample brings the total number of T dwarfs found or confirmed by UKIDSS data in this region to nine, and we discuss the projected numbers of dwarfs in the future survey data. …”
    Journal article
  20. 720

    Development of the HARMONI spectrograph for ESO’s Extremely Large Telescope by Hidalgo Valadez, AA

    Published 2023
    “…This versatile instrument assisted by adaptive optics will deliver diffraction-limited spectroscopic capabilities across the near-infrared wavelength range, taking full advantage of the ELT's combination of exceptional spatial resolution and vast collecting area to enable groundbreaking scientific research. …”
    Thesis