Results 11 to 20 of about 13,675 (227)
, 2014 Even though KTiOPO4 (KTP) is considered to be one of the best nonlinear materials for quasi phase matched (QPM) frequency conversion in the visible and the near-infrared spectral regions, its use is often limited by poor material homogeneity, high ionic conductivity, a considerable linear absorption and photochromatic damage.
Andrius Žukauskas
openalex +3 more sources
Self-organized spatiotemporal quasi-phase-matching in microresonators [PDF]
Nature CommunicationsQuasi-phase-matching (QPM) is a widely adopted technique for mitigating stringent momentum conservation in nonlinear optical processes such as second-harmonic generation (SHG).
Ji Zhou +6 more
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Optically programable quasi phase matching in four-wave mixing [PDF]
Nature CommunicationsQuasi-phase matching (QPM) enhances nonlinear optical processes by compensating for phase mismatch, but traditional methods require permanent material modifications, limiting applicability in centrosymmetric media like standard optical fibers.
Gil Bashan +3 more
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Testcross performance and combining ability of early-medium maturing quality protein maize inbred lines in Eastern and Southern Africa [PDF]
Scientific ReportsLimited commercial quality protein maize (QPM) varieties with low grain yield potential are currently grown in Eastern and Southern Africa (ESA). This study was conducted to (i) assess the performance of single-cross QPM hybrids that were developed from ...
Addisalem Mebratu +3 more
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High pump depletion second-harmonic generation using domain engineered thin-film lithium niobate waveguides. [PDF]
NanophotonicsAbstract Thin‐film lithium niobate (TFLN) has emerged as a powerful platform for integrated nonlinear optics owing to its large χ(2) nonlinearity, tight confinement and flexible tunability. To fully excavate such superior nonlinear optical properties, domain engineering is commonly adopted to fulfill the phase matching condition of χ(2) processes ...
Wang C +13 more
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Light-amplification-assisted sum-frequency generation in erbium-doped thin-film lithium niobate optical waveguides. [PDF]
NanophotonicsAbstract Erbium‐doped thin‐film lithium niobate (Er3+:TFLN) enables integrated photonic devices through its efficient photoluminescence. However, the fixed transition energies of erbium ions intrinsically restrict emission to the telecommunications C‐band (1530–1565 nm), limiting spectral versatility.
Liu Y +11 more
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Foods, 2022 Malnutrition, as a result of deficiency in essential nutrients in cereal food products and consumption of a poorly balanced diet, is a major challenge facing millions of people in developing countries. However, developing maize inbred lines that are high
Isaac Amegbor +4 more
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Gels, 2022 The objective of this work was to examine the effect of quaternary polymethacrylate (QPM), a water-insoluble polymer with a positive charge, on the characteristics of the sodium alginate (SA) dispersions and the calcium alginate (CA) gel beads containing
Wanwisa Khunawattanakul +6 more
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TECHNICAL EFFICIENCY OF PRODUCTION OF QUALITY PROTEIN MAIZE BETWEEN ADOPTERS AND NON-ADOPTERS, AND THE DETERMINANTS IN OYO STATE, NIGERIA [PDF]
Review of Agricultural and Applied Economics, 2016 This study determined the technical efficiency (TE) of production of Quality Protein Maize (QPM) and the effect on the adoption of QPM in Oyo State, Nigeria. QPM is an improved maize variety developed to reduce protein deficiency problems. A total of 100
Abiodun Elijah OBAYELU +2 more
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Frontiers in Sustainable Food Systems, 2023 IntroductionBiofortified maize varieties could contribute to the fight against hunger and malnutrition of the increasing human population and help meet the high demand of maize for human consumption, industrial use and feed for animal and poultry.
Isaac Kodzo Amegbor +5 more
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