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Related papers: Low-frequency Raman scattering in model disordered…

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The polarization of a coherent depolarized incident light beam passing through a disordered medium is investigated. The local polarization of the scattered far field and the probability density function are calculated and show an excellent…

Optics · Physics 2011-06-06 Jacques Sorrentini , Myriam Zerrad , Gabriel Soriano , Claude Amra

The interplay of such cornerstones of modern nonlinear fiber optics as a nonlinearity, stochasticity and polarization leads to variety of the noise induced instabilities including polarization attraction and escape phenomena harnessing of…

Unusually large spontaneous and piezoelectric fields in the III-V nitrides have led to the making of an entirely new class of two-dimensional electron gas. Fluctuation from a perfectly periodic binary structure in highly polar semiconductor…

Materials Science · Physics 2009-10-31 Debdeep Jena , Arthur. C. Gossard , Umesh. K. Mishra

The symmetry group analysis is applied to classify the phonon modes of $N$-stacked graphene layers (NSGL's) with AB- and AA-stacking, particularly their infra-red and Raman properties. The dispersions of various phonon modes are calculated…

Materials Science · Physics 2008-06-30 Jin-Wu Jiang , Hui Tang , Bing-Shen Wang , Zhao-Bin Su

We demonstrate the generation of narrowband biphotons with polarization-frequency coupled hy- perentanglement from spontaneous four-wave mixing in cold atoms. The coupling between polariza- tion and frequency is realized through a frequency…

Quantum Physics · Physics 2015-04-22 Chi Shu , Xianxin Guo , Peng Chen , M. M. T. Loy , Shengwang Du

Single crystals of the optimally doped, moderately and strongly overdoped high temperature superconductor Tl2Ba2CuO6+x (Tl-2201) with Tc=80, 56 and 30K, respectively, have been investigated by polarized Raman scattering. By taking the peak…

Superconductivity · Physics 2009-10-31 L. V. Gasparov , P. Lemmens , N. N. Kolesnikov , G. Guntherodt

In this manuscript we investigate the capabilities of the Discrete Dipole Approximation (DDA) to simulate scattering from particles that are much larger than the wavelength of the incident light, and describe an optimized publicly available…

Optics · Physics 2007-05-23 Maxim A. Yurkin , Valeri P. Maltsev , Alfons G. Hoekstra

We present a general model study of surface-enhanced resonant Raman scattering and fluorescence focusing on the interplay between electromagnetic effects and the molecular dynamics. Our model molecule is placed close to two Ag…

Other Condensed Matter · Physics 2007-05-23 Hongxing Xu , Xue-Hua Wang , Martin P. Persson , H. Q. Xu , Mikael Kall , Peter Johansson

The spectral relationships between surface enhanced resonant Raman scattering (SERRS) and plasmon resonance observed in far field scattering cross are investigated using single silver nanoparticle dimers with focusing on the lowest energy…

Optics · Physics 2023-04-07 Tamitake Itoh , Yuko S. Yamamoto

In this paper we examine the effects of electron-hole asymmetry as a consequence of strong correlations on the electronic Raman scattering in the normal state of copper oxide high temperature superconductors. Using determinant quantum Monte…

Strongly Correlated Electrons · Physics 2012-05-11 B. Moritz , S. Johnston , T. P. Devereaux , B. Muschler , W. Prestel , R. Hackl , M. Lambacher , A. Erb , Seiki Komiya , Yoichi Ando

The electronic Raman scattering of Borocarbide superconductors is studied based on the weak coupling theory with $s+g$-wave gap symmetry. The low energy behaviors and the relative peak positions can be naturally understood, while the…

Superconductivity · Physics 2009-11-07 Hyun C. Lee , Han-Yong Choi

An analysis is presented of wave-vector dispersion in elliptically birefringent stratified magneto-optic media having one-dimensional periodicity. It is found that local normal-mode polarization-state differences between adjacent layers…

Optics · Physics 2009-11-13 Amir A. Jalali , Miguel Levy

Isotopic substitution of boron and carbon is applied for the identification of the vibrational modes of heavily boron-doped diamond synthesized by high-pressure high-temperature technique. None of the bands in the Raman spectra are shifting…

Materials Science · Physics 2008-01-11 I. I. Vlasov , E. A. Ekimov , A. A. Basov , E. Goovaerts , A. V. Zoteev

Semi-classical calculation of an oscillating dipole induced in a two-level atom indicates that spherical radiation from the dipole under coherent interaction, i.e., Rayleigh scattering, has a power level comparable to that of spontaneous…

Atomic Physics · Physics 2012-04-24 Akifumi Takamizawa , Koichi Shimoda

Raman spectroscopy is one of the most extended experimental techniques to investigate thin-layered 2D materials. For a complete understanding and modeling of the Raman spectrum of a novel 2D material, it is often necessary to combine the…

The Raman scattering spectra from magnetic excitations in an antiferromagnetic spin-1/2 two leg ladder is investigated for weak and strong interladder coupling. In the first case, a cusp in the Raman intensityis obtained at a frequency…

Strongly Correlated Electrons · Physics 2007-05-23 E. Orignac , R. Citro

A theory for the effect of impurity scattering on electronic Raman scattering in unconventional superconductors is presented. The impurity dependence of the the spectra can be used to to distinguish between conventional (anisotropic…

Condensed Matter · Physics 2009-10-22 T. P. Devereaux

We study theoretically the Raman scattering spectra in the one-dimensional (1D) quantum spin-1/2 antiferromagnets. The analysis reveals that their low-energy dynamics is exquisitely sensitive to various perturbations to the Heisenberg chain…

Strongly Correlated Electrons · Physics 2012-06-06 Masahiro Sato , Hosho Katsura , Naoto Nagaosa

We present a quantum-mechanical model that describes fiber-based frequency conversion by four-wave-mixing Bragg scattering in the presence of Raman interactions. In the case of continuous-wave pumps we find closed-form expressions for the…

Quantum Physics · Physics 2024-06-06 Mathias Linde Holst Korsgaard , Jacob Gade Koefoed , Karsten Rottwitt

We consider the role of a propagation effect such as the stimulated Raman scattering on the polarization of radio pulses. When an intense electromagnetic wave with frequency close to the plasma frequency interacts with the plasma in the…

Astrophysics · Physics 2009-10-31 R. T. Gangadhara , H. Lesch , V. Krishan