Results 81 to 90 of about 20,626 (216)
Frontiers in NeuroscienceObjectivesThis study aims to assess the predictive capability of synthetic MRI in assessing neurodevelopmental outcomes for extremely preterm neonates with low-grade Germinal Matrix-Intraventricular Hemorrhage (GMH-IVH).
Chunxiang Zhang +12 more
doaj +1 more source
, 2009 Recently we proposed a theory of point-contact spectroscopy and argued that the splitting of zero-bias conductance peak (ZBCP) in electron-doped cuprate superconductor point-contact spectroscopy is due to the coexistence of antiferromagnetic (AF) and d ...
C. S. Liu +4 more
core +1 more source
Nanophotonics, Volume 15, Issue 7, 13 April 2026.We experimentally achieve an ultraflat, 4.35‐W all‐fiber supercontinuum spanning from 414 to 1860 nm (3‐dB bandwidth). To our knowledge, this represents the broadest octave‐spanning, visible‐to‐NIR, ultraflat SC source ever reported, which also exhibits maximal visible band coverage. ABSTRACT We propose a method for generating ultraflat supercontinuum (
Yashuai Guo +6 more
wiley +1 more source
Ingeniare: Revista Chilena de Ingeniería, 2007 In this work, a comprehensive mathematical model which rigorously describes the interaction between stimulated Raman scattering (SRS) and four-wave mixing (FWM) in distributed fiber Raman amplifiers (DFRAs) is presented.
Marcelo Soto, Ricardo Olivares
doaj
Experimental Analysis and Reduction of FWM Using Optical Rectangle Filter for WDM [PDF]
Mehran University Research Journal of Engineering and Technology, 2016 Nonlinearities implanted by refractive index and scattering degrade the performance of optical networks. In this paper, FWM (Four Wave Mixing) has been analyzed for four different channels with 10 nm spacing.
Ghulam Fizza +2 more
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Interferograms of Votex FWM Beam for Nonlinear Spatial Filter in Photonic Band Gap
IEEE Photonics Journal, 2019 We analyze the properties and interferograms of vortex four-wave mixing (FWM) beams by varying the incident angle of the probe field. Based on the properties, we propose the model of a new type of nonlinear spatial filter without diffraction using a ...
Zhiguo Wang +3 more
doaj +1 more source
Differential Gene Expression in Human Hippocampus With Aging
Aging Cell, Volume 25, Issue 4, April 2026.2 complementary analysis from a transcriptome study in human hippocampal samples of different ages revealed a set of genes differentially expressed in aged individuals linked to inflammation and immune system pathways, DNA repair (RAD23) or neural activity.
Ander Saenz‐Antoñanzas +9 more
wiley +1 more source
Highly Sensitive FBG Strain Sensor With Enhanced Measurement Range Based On Higher Order FWM
IEEE Photonics Journal, 2020 To meet the simultaneous requirement of high sensitivity and high measurement range is an uphill task in the development of fiber Bragg grating (FBG) strain sensor. A unique scheme of highly sensitive FBG strain sensor is proposed based on nonlinear four
Chiranjit Ghosh, Vishnu Priye
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Engineered Optical Fibers for Deep‐Tissue Applications
Advanced Optical Materials, Volume 14, Issue 10, 13 March 2026.This review establishes a foundational framework for designing optical fibers for deep‐tissue medicine. It systematically links material innovations like polymers and hydrogels with structural paradigms to enable state‐of‐the‐art diagnostics, including endoscopy and biosensing, and targeted therapeutics, guiding future clinical translation.
Yuzhen Li +16 more
wiley +1 more source
IEEE Photonics Journal, 2015 We investigate lifetime (induced dipole-dipole interaction) of spontaneous parametric four-wave mixing (SP-FWM) and multiorder fluorescence (FL) signals controlled by polarization dressing in a heteronuclear-like molecule system of Pr3+:YSO.
Imran Ali +6 more
doaj +1 more source