Results 41 to 50 of about 297,164 (259)
Water Window Ptychographic Imaging with Characterized Coherent X-rays [PDF]
, 2015 We report on a ptychographical coherent diffractive imaging experiment in the water window with focused soft X-rays at $500~\mathrm{eV}$. An X-ray beam with high degree of coherence was selected for ptychography at the P04 beamline of the PETRA III ...
Dzhigaev, Dmitry +10 more
core +2 more sources
Two-Point Resolution of a Defocused Imaging System Based on Spatially Coherent Illumination
PhotonicsWe examine the physical limitations and performance of spatially coherent imaging systems under defocused conditions using a modified two-point resolution criterion.
Gianlorenzo Massaro +4 more
doaj +1 more source
IEEE Access, 2018 We demonstrate a computational, frequency-diverse, phaseless imaging technique at microwave frequencies that minimizes the impacts of phase calibration and alignment errors on image reconstruction.
Okan Yurduseven +2 more
doaj +1 more source
Applied Sciences, 2018 Although digital holography is used widely at present, the information contained in the digital hologram is still underutilized. For example, the phase values of the Fourier spectra of the hologram are seldom used directly.
Huaying Wang +5 more
doaj +1 more source
Transmission Structured Illumination Microscopy for Quantitative Phase and Scattering Imaging
Frontiers in Physics, 2021 In this paper, we demonstrate a digital micromirror device (DMD) based optical microscopic apparatus for quantitative differential phase contrast (qDIC) imaging, coherent structured illumination microscopy (SIM), and dual-modality (scattering/fluorescent)
Kai Wen +5 more
doaj +1 more source
The role and implications of mammalian cellular circadian entrainment
FEBS Letters, EarlyView.At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley +1 more source
IEEE Access, 2023 We have been studying high-definition ultrasound imaging based on phase information of subband components extracted from received echoes. We address coherent imaging with array transducers based on plane wave transmission.
Jie Zheng, Jing Zhu, Norio Tagawa
doaj +1 more source
Molecular Oncology, EarlyView.This study explores salivary RNA for breast cancer (BC) diagnosis, prognosis, and follow‐up. High‐throughput RNA sequencing identified distinct salivary RNA signatures, including novel transcripts, that differentiate BC from healthy controls, characterize histological and molecular subtypes, and indicate lymph node involvement.
Nicholas Rajan +9 more
wiley +1 more source
IEEE Photonics Journal, 2017 A scheme was proposed to achieve wide-field vibrational sum-frequency generation (SFG) microscopy with subdiffraction-limited resolution in one dimension. In this approach, samples are illuminated with a structured visible field and a uniform IR field to
Ya-Hui Li, Dan-Ni Chen, Han-Ben Niu
doaj +1 more source
Coherent Diffractive Imaging Using Randomly Coded Masks
, 2015 Coherent diffractive imaging (CDI) provides new opportunities for high resolution X-ray imaging with simultaneous amplitude and phase contrast. Extensions to CDI broaden the scope of the technique for use in a wide variety of experimental geometries and ...
d'Aspremont, Alexandre +2 more
core +2 more sources