Results 101 to 110 of about 5,531 (246)
Optimal Strategies for Imaging Thick Biological Specimens:
, 1996 this paper, exit wavefront reconstruction is used to quantitatively analyse the imaging properties of an energy-filtered microscope and to assess its utility for thick-section microscopy. We found that for imaging thick biological specimens (>
A. J. Gubbens +4 more
core
Real-time wavefront reconstruction from intensity measurements
, 2013 We propose an efficient approximation to the nonlinear phase diversity method for wavefront reconstruction from intensity measurements. The new method, iterative linear phase diversity (ILPD), assumes that the residual phase aberration is small and makes
Smith, C. (author) +5 more
core +1 more source
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT We present experimental results on the relationship between rain attenuation and simultaneous scintillation during rain events, based on beacon signal measurements at 19.7 (Ka‐band) and 39.4 GHz (Q‐band) from the geosynchronous Alphasat satellite (25° E), received at two Italian ground stations, Spino d'Adda (42.1° slant path) and Tito Scalo ...
Miles Turner +5 more
wiley +1 more source
Optical wavefront reconstruction
, 1966 The process of storing and subsequently retrieving information by means of wavefront reconstruction (holography) is discussed in this paper. Our experimental procedures and results in producing multiple-beam interferometric holograms and subsequent ...
core
Multichannel SAR imaging using wavefront reconstruction [PDF]
, 2004 6 pagesThe combination of phased arrays with Synthetic Aperture Radar (SAR), ie. multichannel SAR offers many benefits such as improved ambiguity suppression for Moving Target Indication (MTI) and imaging large swaths [1]-[2], improved Signal-Noise-Ratio
Rosenberg, L., Gray, D.
core
Small Methods, EarlyView.The 3D beating dynamics of eukaryotic flagella drive motility, sensory functions, and resource acquisition, yet highly non‐planar beating patterns remain poorly characterized. Based on Digital Holographic Microscopy, holoV3C enables label‐free 3D reconstruction of such complex dynamics with 53 nm axial resolution, demonstrated on mouse sperm and ...
Patryk Nienaltowski +7 more
wiley +1 more source
Structural, Compositional, and Dielectric State Profiling in Label‐Free Single‐Cell Monitoring
Small Methods, EarlyView.Label‐free single‐cell monitoring leverages distinct physical interactions to access structural, compositional, and dielectric states of cells, enabling non‐perturbative, repeatable, and information‐rich measurements across diverse biological contexts. This review organizes representative platforms by intrinsic state variables and connects measurement ...
Changi Baek +6 more
wiley +1 more source
Wavefront Reconstruction for a Holographic Modal Wavefront Sensor Based on Extreme Learning Machine
IEEE Photonics JournalThe intermodal crosstalk effect as well as the limited dynamic range of holographic modal wavefront sensors (HMWFSs) significantly affect their wavefront-sensing accuracy.
Han Cao +5 more
doaj +1 more source
Modulation transfer in wavefront reconstruction
, 2017 Thesis (M.S.)--University of Rochester. Department of Physics.The wavefront reconstruction process, discovered by Gabor and expanded by Leith and Upatnieks, involves the photography of diffraction patterns and later reconstruction of an image from the ...
Eyer, James A. (1929 - ) +1 more
core
Improved image reconstruction in coherent diffraction imaging using self‐seeded XFEL pulses
Journal of Synchrotron Radiation, EarlyView.This study demonstrates that the superior coherence of narrow‐bandwidth self‐seeded X‐ray pulses significantly improves the quality and reliability of image reconstruction in coherent diffraction imaging compared with conventional broad‐bandwidth SASE pulses.
Jaeyong Shin +7 more
wiley +1 more source