منابع مشابه
Investigation of Scalar Modulation Instability in the Presence of Raman Scattering in Photonic Crystal Fibers
In this paper, by including Raman scattering in the coupled-mode equations, the scalar modulation instability in photonic crystal fibers is investigated. The evolution of the pump, Stokes and anti-Stokes waves along the fiber as well as the conversion efficiency for two cases, with and without Raman effect, are studied. The effect of anti-Stokes seed and the pump depletion on the evolution of S...
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We report resonant electronic Raman scattering in optimally doped single layer HgBa2CuO4+δ (Hg-1201) and trilayer HgBa2Ca2Cu3O8+δ (Hg-1223) single crystals. Analysis of the B1g and B2g channels in the superconducting state of Hg-1201 advocates for a gap having d-wave symmetry. In addition a resonant study B1g pair-breaking peak and the A1g peak suggests that the A1g peak is not directly related...
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The active substrates in surface enhanced Raman scattering (SERS) spectroscopy were prepared through self-assembly of nanoparticles on functionalized glasses. Colloidal silver nanoparticles (Ag NPs) were prepared chemically in two different sizes by reduction of AgNO3 using trisodium citrate and sodium borohydride. Gold–silver core–shell nanoparticles were also prepared to compare between the o...
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Statutory Declaration I hereby declare that this thesis is a result of my own work and that no other than the indicated references and resources have been used for its completion. Acknowledgements First, I am most grateful to my supervisors, Professor Ulrich Lemmer and Dr. Martina Gerken at the Universität Karlsruhe as well as Professor Jelena Vučković at Stanford University. Uli and Martina ha...
متن کاملSpin excitations in a single La2CuO4 layer.
Cuprates and other high-temperature superconductors consist of two-dimensional layers that are crucial to their properties. The dynamics of the quantum spins in these layers lie at the heart of the mystery of the cuprates. In bulk cuprates such as La(2)CuO(4), the presence of a weak coupling between the two-dimensional layers stabilizes a three-dimensional magnetic order up to high temperatures...
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ژورنال
عنوان ژورنال: Solid State Communications
سال: 1988
ISSN: 0038-1098
DOI: 10.1016/0038-1098(88)90325-0