General Notation for Polarized Raman Scattering from Gases, Liquids, and Single Crystals

1973 ◽  
Vol 27 (5) ◽  
pp. 382-385 ◽  
Author(s):  
Basil I. Swanson
Keyword(s):  
Raman Scattering ◽  
Single Crystal ◽  
Single Crystals ◽  
Scattered Light ◽  
Incident Light ◽  
Polarized Raman

A completely general notation for polarized Raman scattering from gases, solutions, liquids, and single crystals is presented. This notation can be used to describe scattering from single crystals where more general crystallographic directions are employed. Scattering experiments where nonpolarized incident light is used, or where both polarization components of scattered light are observed, can also be labeled. Single crystal scattering efficiencies are discussed in terms of the generalized notation.

scholarly journals Polarized Raman scattering study of PSN single crystals and epitaxial thin films

2015 ◽  
Vol 05 (02) ◽  
pp. 1550013 ◽  
Author(s):  
J. Pokorný ◽  
I. Rafalovskyi ◽  
I. Gregora ◽  
F. Borodavka ◽  
M. Savinov ◽  
...  
Keyword(s):  
Thin Films ◽  
Raman Scattering ◽  
Single Crystals ◽  
Scattered Light ◽  
Epitaxial Thin Films ◽  
Ferroelectric State ◽  
Relaxor State ◽  
Structural Differences ◽  
Scattering Study ◽  
Polarized Raman

This paper describes a detailed analysis of the dependence of Raman scattering intensity on the polarization of the incident and inelastically scattered light in PbSc 0.5 Nb 0.5 O 3 (PSN) single crystals and epitaxially compressed thin films grown on (100)-oriented MgO substrates. It is found that there are significant differences between the properties of the crystals and films, and that these differences can be attributed to the anticipated structural differences between these two forms of the same material. In particular, the scattering characteristics of the oxygen octahedra breathing mode near 810 cm-1 indicate a ferroelectric state for the crystals and a relaxor state for the films, which is consistent with the dielectric behaviors of these materials.

scholarly journals Stimulated Raman scattering in a non-eigenmode regime

2020 ◽  
Vol 8 ◽  
Author(s):  
Yao Zhao ◽  
Suming Weng ◽  
Zhengming Sheng ◽  
Jianqiang Zhu
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Laser Energy ◽  
Scattered Light ◽  
Incident Light ◽  
Loss Mechanism ◽  
Constant Frequency ◽  
Electrostatic Wave ◽  
Particle In Cell ◽  
Stimulated Raman

Stimulated Raman scattering (SRS) in plasma in a non-eigenmode regime is studied theoretically and numerically. Different from normal SRS with the eigen electrostatic mode excited, the non-eigenmode SRS is developed at plasma density $n_{e}>0.25n_{c}$ when the laser amplitude is larger than a certain threshold. To satisfy the phase-matching conditions of frequency and wavenumber, the excited electrostatic mode has a constant frequency around half of the incident light frequency $\unicode[STIX]{x1D714}_{0}/2$ , which is no longer the eigenmode of electron plasma wave $\unicode[STIX]{x1D714}_{pe}$ . Both the scattered light and the electrostatic wave are trapped in plasma with their group velocities being zero. Super-hot electrons are produced by the non-eigen electrostatic wave. Our theoretical model is validated by particle-in-cell simulations. The SRS driven in this non-eigenmode regime is an important laser energy loss mechanism in the laser plasma interactions as long as the laser intensity is higher than $10^{15}~\text{W}/\text{cm}^{2}$ .

Polarized Raman scattering of impurity modes in beryllium-doped cubic boron nitride single crystals

2003 ◽  
Vol 82 (18) ◽  
pp. 2972-2974 ◽  
Author(s):  
Kenji Watanabe ◽  
Takashi Taniguchi ◽  
Hisao Kanda ◽  
Elena M. Shishonok
Keyword(s):  
Boron Nitride ◽  
Raman Scattering ◽  
Single Crystals ◽  
Cubic Boron Nitride ◽  
Impurity Modes ◽  
Polarized Raman

The single crystal Raman spectrum of orthorhombic PbCl2

1970 ◽  
Vol 48 (18) ◽  
pp. 2931-2933 ◽  
Author(s):  
G. A. Ozin
Keyword(s):  
Raman Spectrum ◽  
Raman Scattering ◽  
Single Crystal ◽  
Lattice Vibrations ◽  
Polarized Raman ◽  
Oriented Single Crystal

The frequencies and symmetries of the even parity lattice vibrations of orthorhombic lead dichloride are determined by means of polarized Raman scattering from an oriented single crystal. The frequencies of the vibrations are interpreted in terms of symmetry co-ordinates and by comparison with the modes of the isomorphous lead dibromide.

Polarized Raman scattering analysis of Cu2ZnSnSe4 and Cu2ZnGeSe4 single crystals

2013 ◽  
Vol 114 (19) ◽  
pp. 193514 ◽  
Author(s):  
M. Guc ◽  
S. Levcenko ◽  
V. Izquierdo-Roca ◽  
X. Fontané ◽  
E. Arushanov ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Single Crystals ◽  
Polarized Raman

scholarly journals Phonons in MgB2 by polarized Raman scattering on single crystals

2001 ◽  
Vol 64 (14) ◽  
Author(s):  
J. Hlinka ◽  
I. Gregora ◽  
J. Pokorný ◽  
A. Plecenik ◽  
P. Kúš ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Single Crystals ◽  
Polarized Raman

Polarized Raman Scattering Study of ZnGeP2 Single Crystals

1997 ◽  
Vol 484 ◽  
Author(s):  
Spirit Tlali ◽  
Howard E. Jackson ◽  
M. C. Ohmer ◽  
P. G. Schunemann ◽  
T. M. Pollak
Keyword(s):  
Raman Scattering ◽  
Single Crystals ◽  
Raman Spectra ◽  
Low Temperatures ◽  
High Quality ◽  
Crystal Orientations ◽  
Gradient Technique ◽  
Theoretical Predictions ◽  
Scattering Study ◽  
Polarized Raman

AbstractRaman scattering experiments on high quality ZnGeP2 single crystals grown by the seeded horizontal dynamic gradient technique have been carried out. Polarized Raman spectra were obtained in the backscattering geometry at both room and low temperatures for several crystal orientations and compared with group theoretical predictions. Raman spectra from as-grown and annealed samples display distinctive differences which were explored by utilizing two different excitation wavelengths: 514.3 nm and 632.8 nm; the observed differences are attributed to a surface interdiffuasion effect.

Polarized Raman scattering in single crystals of Nd0.7Sr0.3MnO3

Pramana ◽  
2002 ◽  
Vol 58 (5-6) ◽  
pp. 1013-1017 ◽  
Author(s):  
M Pattabiraman ◽  
G Rangarajan ◽  
Kwang-Yong Choi ◽  
P Lemmens ◽  
G Guentherodt ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Single Crystals ◽  
Polarized Raman

Polarisation dependent Raman study of single-crystal nickel oxide

Open Physics ◽  
2011 ◽  
Vol 9 (4) ◽  
Author(s):  
Nina Mironova-Ulmane ◽  
Alexei Kuzmin ◽  
Ilmo Sildos ◽  
Martti Pärs
Keyword(s):  
Raman Scattering ◽  
Nickel Oxide ◽  
Single Crystal ◽  
Single Crystals ◽  
Domain Structure ◽  
Magnetic Domain ◽  
Domain Pattern ◽  
Polarized Optical Microscopy ◽  
Twin Domain ◽  
Raman Study

AbstractThe magnetic domain structure and Raman scattering have been studied in NiO single-crystals with three different (100), (110) and (111) orientations. Twin-domain structure was observed in NiO(100) and NiO(110) single-crystals using cross-polarized optical microscopy. We found that the ratio of the two-magnon (at 1500 cm−1) to the two-phonon (2LO, at 1100 cm−1) Raman bands intensity is sensitive in a particular way to the type of the twin-domain pattern.

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