103 citations · 262 across the 11 of their papers we have counts for
11 papers
Bolometric Night Sky Temperature and Subcooling of Telescope Structures
Ronald Holzlöhner, Stefan Kimeswenger, Wolfgang Kausch +1
Context. The term sky temperature is used in the literature in different contexts which often leads to confusion. In this work, we study , the effective bolometric sk…
Frequency chirped continuous-wave sodium laser guide stars
F. Pedreros Bustos, R. Holzlöhner, S. Rochester +3
We numerically study a method to increase the photon return flux of continuous-wave laser guide stars using one-dimensional atomic cooling principles. The method relies on chirping…
Raman-scattered laser guide star photons to monitor the scatter of astronomical telescope mirrors
F. P. A. Vogt, J. L. Álvarez, D. Bonaccini Calia +26
The first observations of laser guide star photons Raman-scattered by air molecules above the Very Large Telescope (VLT) were reported in June 2017. The initial detection came from…
Polarization-driven spin precession of mesospheric sodium atoms
Felipe Pedreros, Domenico Bonaccini Calia, Dmitry Budker +5
We report experimental results on the first on-sky observation of atomic spin precession of mesospheric sodium driven by polarization modulation of a continuous-wave laser. The mag…
Remote sensing of geomagnetic fields and atomic collisions in the mesosphere
Felipe Pedreros Bustos, Domenico Bonaccini Calia, Dmitry Budker +5
Magnetic-field sensing has contributed to the formulation of the plate-tectonics theory, the discovery and mapping of underground structures on Earth, and the study of magnetism in…
Towards optimization of pulsed sodium laser guide stars
Rachel Rampy, Donald Gavel, Simon M. Rochester +1
Pulsed sodium laser guide stars (LGS) are useful because they allow for Rayleigh blanking and fratricide avoidance in multiple-LGS systems. Bloch-equation simulations of sodium-lig…
Impact of Sodium Layer variations on the performance of the E-ELT MCAO module
L. Schreiber, E. Diolaiti, C. Arcidiacono +4
Multi-Conjugate Adaptive Optics systems based on sodium Laser Guide Stars may exploit Natural Guide Stars to solve intrinsic limitations of artificial beacons (tip-tilt indetermina…
Modeling of pulsed laser guide stars for the Thirty Meter Telescope project
S. M. Rochester, A. Otarola, C. Boyer +4
The Thirty Meter Telescope (TMT) has been designed to include an adaptive optics system and associated laser guide star (LGS) facility to correct for the image distortion due to Ea…
Magnetometry with Mesospheric Sodium
J. M. Higbie, S. M. Rochester, B. Patton +3
Measurement of magnetic fields on the few-hundred-kilometer length scale is significant for a variety of geophysical applications including mapping of crustal magnetism and ocean-c…
Optimization of cw sodium laser guide star efficiency
R. Holzlohner, S. M. Rochester, D. Bonaccini Calia +3
Context: Sodium laser guide stars (LGS) are about to enter a new range of laser powers. Previous theoretical and numerical methods are inadequate for accurate computations of the r…
FEM investigation of leaky modes in hollow core photonic crystal fibers
J. Pomplun, R. Holzlöhner, S. Burger +2
Hollow-core holey fibers are promising candidates for low-loss guidance of light in various applications, e.g., for the use in laser guide star adaptive optics systems in optical a…