Results 51 to 60 of about 145,669 (318)
IEEE Access, 2021 A novel method of pre-compensating the phase distortions outside the fiber laser array based on active integrated wavefront sensing is proposed and demonstrated experimentally. The scheme and the working principle are introduced.
Chao Geng +7 more
doaj +1 more source
Nuclear star formation in the quasar PG1126-041 from adaptive optics assisted spectroscopy
, 2004 We present adaptive optics assisted spectroscopy of three quasars obtained with NACO at VLT. The high angular resolution achieved with the adaptive optics (~0.08"), joined to the diagnostic power of near-IR spectroscopy, allow us to investigate the ...
Cresci, G. +4 more
core +1 more source
Large-scale wave-front reconstruction for adaptive optics systems by use of a recursive filtering algorithm [PDF]
, 2005 We propose a new recursive filtering algorithm for wave-front reconstruction in a large-scale adaptive optics system. An embedding step is used in this recursive filtering algorithm to permit fast methods to be used for wave-front reconstruction on an ...
Britton, Matthew +2 more
core +1 more source
FEBS Letters, EarlyView.In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley +1 more source
PhotonicsSolar ground-layer adaptive optics (GLAO) is widely recognized as a key technology for achieving high-resolution, wide-field imaging in ground-based solar telescopes. However, the accuracy differences among various wavefront sensing methods in solar GLAO
Yuhe Liu +8 more
doaj +1 more source
IEEE Photonics Journal, 2021 This paper aims to employ a neural network method of extreme learning machine to solve the problem of laser beam cleanup under the dynamic non-uniform-intensity distribution.
Haiqi Lin +3 more
doaj +1 more source
Production of Phase Screens for Simulation of Atmospheric Turbulence
, 2012 The ability to simulate atmospheric turbulence in the lab is a crucial part of testing and developing astronomical adaptive optics technology. We report on the development of a technique for creating phase plates, which involves the strategic application
Dillon, Daren +3 more
core +1 more source
Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS Letters, EarlyView.Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley +1 more source
Mode-Voltage Constrained Control for Adaptive Optics System
IEEE Photonics JournalIn the adaptive optics system of astronomical observation, the deformable mirror and the tip/tilt mirror are coupled during the correction process.
Ruitao Wang +7 more
doaj +1 more source
An update of the on-sky performance of the Layer-Oriented wave-front sensor for MAD
, 2010 The Multi-conjugate Adaptive optics Demonstrator, MAD, successfully demonstrated on sky the MCAO technique both in Layer Oriented and Star Oriented modes. As results of the Guaranteed Time Observations in Layer Oriented mode quality astronomy papers have
Arcidiacono, Carmelo +7 more
core +1 more source