Results 41 to 50 of about 13,675 (227)

Segmented finger electrodes to optimize ultra-long continuous wafer-scale periodic poling in thin-film lithium niobate. [PDF]

open access: yesNanophotonics
Abstract Periodically poled thin‐film lithium niobate (TFLN) crystals are the fundamental building block for highly‐efficient quantum light sources and frequency converters. The efficiency of these devices is strongly dependent on the interaction length between the light and the nonlinear material, scaling quadratically with this parameter ...
Bollmers L   +5 more
europepmc   +2 more sources

Coupling quasi-phase matching: entanglement buildup in $\chi^{(2)}$ nonlinear waveguide arrays

open access: yes, 2019
Wavevector quasi-phase matching was devised in the 1960s as a way to boost nonlinear interactions with efficient quantum noise squeezing as one outstanding outcome.
Barral, David   +3 more
core   +5 more sources

Fourth-order dispersion mediated modulation instability in dispersion oscillating fibers [PDF]

open access: yes, 2013
We investigate the role played by fourth-order dispersion on the modulation instability process in dispersion oscillating fibers. It not only leads to the appearance of instability sidebands in the normal dispersion regime (as in uniform fibers), but ...
Armaroli, Andrea   +6 more
core   +1 more source

Review Article: Quasi-phase-matching engineering of entangled photons

open access: yesAIP Advances, 2012
Quasi-phase-matching (QPM) technique has been successfully applied in nonlinear optics, such as optical frequency conversion. Recently, remarkable advances have been made in the QPM generation and manipulation of photon entanglement.
P. Xu, S. N. Zhu
doaj   +1 more source

Clinically Informed Intelligent Classification of Ovarian Cancer Cells by Label‐Free Holographic Imaging Flow Cytometry

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quantitative phase maps of single cells recorded in flow cytometry modality feed a hierarchical architecture of machine learning models for the label‐free identification of subtypes of ovarian cancer. The employment of a priori clinical information improves the classification performance, thus emulating the clinical application of liquid biopsy during ...
Daniele Pirone   +11 more
wiley   +1 more source

Ground state correlations and anharmonicity of vibrations [PDF]

open access: yes, 2000
A consistent treatment of the ground state correlations beyond the random phase approximation including their influence on the pairing and phonon-phonon coupling in nuclei is presented.
Karadjov, D.   +2 more
core   +3 more sources

Mauritius QPM

open access: yesIMF Working Papers
This paper presents the Mauritius Quarterly Projection Model (QPM), the semi-structural analytical tool that underpins the modernized Forecasting and Policy Analysis System of the Bank of Mauritius (BOM). The model is designed to capture the salient features of the domestic economy, including key monetary policy transmission channels and the recently ...
Marjorie Pampusa   +8 more
openaire   +1 more source

Contrasting Reproductive and Early Life‐History Strategies in Recently Diverged Octocoral Species (Paramuricea spp.)

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
The two color morphs of the Iberian–Atlantic Paramuricea complex show little genetic divergence, and their species boundaries have remained unclear. By analyzing gametogenesis, spawning timing, fertilization environment, and early life‐history traits, we reveal strong prezygotic barriers and divergent developmental and dispersal strategies between the ...
Christina Egger   +10 more
wiley   +1 more source

Improvement in nutritional quality of traditional unleavened flat bread using Quality Protein Maize

open access: yesFrontiers in Nutrition, 2022
Maize grains are consumed majorly in the form of unleavened flat bread (chapatti) in the South East Asian region. The landraces are better accepted for their chapatti-making attributes such as grain color and good organoleptic properties.
Navjot Kaur   +9 more
doaj   +1 more source

Genetic variability, association, and path coefficient analysis for yield and yield‐related traits of quality protein maize genotypes

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract Maize (Zea mays L.) is among the most importantcereal crops worldwide, serving as a major source of food, feed, and industrial raw material. Estimation of genetic parameters, trait associations, and the direct and indirect contributions of agronomic traits to grain yield is fundamental for effective quality protein maize improvement.
Diriba Beyene   +4 more
wiley   +1 more source

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