Results 71 to 80 of about 957,049 (196)
Remote SensingIn order to investigate the equivalent complex refractive index of atmospheric aerosols near the Earth’s surface, we conducted measurements in the Hefei region from March to April 2022.
Xuebin Ma +8 more
doaj +1 more source
Light sheet adaptive optics microscope for 3D live imaging [PDF]
, 2013 Optical microscopy is still the main research tool for many biological studies. Indeed with the advent of genetic manipulation and specifically, the use of fluorescent protein expressing in animals and plants it has actually seen a renaissance in the ...
BOURGENOT, CYRIL,JULES,TUGDUAL
core
Optoacoustic gas-analysis for diagnostics of biosystems
Journal of Biomedical Photonics & Engineering, 2019 A possibility of detecting biogenic gases by the laser optoacoustic gas-analysis method is shown. The construction and specifications of instruments, developed for this purpose, are described. Examples of the analysis of gas samples of various biological
Boris G. Ageev +3 more
doaj +1 more source
On the estimation of atmospheric turbulence layers for AO systems [PDF]
In current and next generation of ground telescopes, Adaptive Optics (AO) are employed to overcome the detrimental effects induced by the presence of atmospheric turbulence, that strongly affects the quality of data transmission and therefore limits ...
Cenedese, Angelo +2 more
core
, 2010 Paper 74760JWe describe two types of adaptive optics systems developed at FGAN-FOM and the progress in their realization during the last year will be presented. The first system is based on classical adaptive optics scheme and is aimed to resolve objects
Scheifling, C., Marchi, G.
core +1 more source
University of Arizona, Institute of Atmospheric Physics, Progress Report No. 1
, 1954 This title from the Institute of Atmospheric Physics Reports collection is made available by the Department of Hydrology & Atmospheric Sciences and the University Libraries, University of Arizona.
Braham, Roscoe R., Jr.
core +4 more sources
On atmospheric optical communications
Revue de Physique Appliquée, 1984 This paper investigates, more rigorously, the diffraction of a powerful optical carrier propagating in an unguided communication channel (dry atmosphere). Four main relevant topics are considered i) the radial temperature distribution, ii) the average beamwidth parameter, iii) a dimensionless optical distortion figure of merit, and iv) the irradiance ...
El-Badawy, El-S. A., El-Halafawy, F.Z.
openaire +2 more sources
MATEC Web of Conferences, 2017 In this paper the results of reconstruction of the radial dependence of refraction index fluctuations spectra in axisymmetric supersonic jet from laser transillumination data are presented.
Marakasov Dmitrii +3 more
doaj +1 more source
Micro-machined membrane deformable mirrors for cryogenic adaptive optics [PDF]
, 2002 In this Thesis, the suitability of 37 actuator Micro-machined membrane deformable mirrors (MMDM) for adaptive optics at cryogenic temperatures is evaluated. A method is described to safely cool MMDMs to 78K. The initial surface figures of three MMDMs are
Dyson, H.M., Dyson, Harold Michael
core
University of Arizona, Institute of Atmospheric Physics, Progress Report No. 4
, 1957 This title from the Institute of Atmospheric Physics Reports collection is made available by the Department of Hydrology & Atmospheric Sciences and the University Libraries, University of Arizona.
Kassander, A. Richard, Jr.
core +3 more sources