Raman Tensor of Layered Black Phosphorous

Abstract Black phosphorous is an orthorhombic with a strong Raman anisotropy in the basal and cross plane. However, up to now, almost all the studies on anisotropy of black phosphorous have focused on basal plane but neglected cross plane. Here, we performed a systematic angle-resolved polarized Raman scattering on the basal and cross plane of black phosphorous and obtained its integral Raman tensors. In addition, we discovered that Raman intensity ratio ( I xx :I yy :I zz ) of A_1^g mode is 256:1:5 when the polarization direction of incident light is along different crystal axes. According to first-principle calculated results, we confirmed that the strong Raman anisotropy is due to larger differential polarizability of A_1^g mode along a-axis. This phenomenon is also observed in the A_2^g mode.

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Anisotropic Properties of GaN Studied by Raman Scattering

Materials Science Forum ◽

10.4028/www.scientific.net/msf.527-529.1517 ◽

2006 ◽

Vol 527-529 ◽

pp. 1517-1520

Author(s):

H.C. Lin ◽

Zhe Chuan Feng ◽

Ming Song Chen ◽

Z.X. Shen ◽

Wei Jie Lu ◽

...

Keyword(s):

Raman Scattering ◽

Cross Sections ◽

Normal Direction ◽

Laser Polarization ◽

Raman Intensity ◽

Polarization Direction ◽

Incident Laser ◽

Scattering Spectra ◽

Polarized Raman ◽

Raman Scattering Spectra

The phonon anisotropy property of the GaN wurtzite crystal is studied using angular dependent Raman spectroscopy both theoretically and experimentally. The polarized Raman scattering spectra were recorded from cross-sections of c-axis oriented GaN films as a function of the angle between the incident laser polarization direction and the film normal direction in three different configurations. The Raman intensity of A1(TO) showed a sinusoidal dependence on the rotating angle, as also did the E1(TO) mode, while the E2 mode has a quite different behavior. The theoretical fit takes into account the susceptibility contribution and the phase differential of different vibrating elements.

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Vibrational spectroscopy of orthorhombic Cu 2 ZnSiS 4 single crystal: Low-temperature polarized Raman scattering and first principle calculations

Vibrational Spectroscopy ◽

10.1016/j.vibspec.2017.01.005 ◽

2017 ◽

Vol 89 ◽

pp. 81-84 ◽

Cited By ~ 1

Author(s):

M. Ya. Valakh ◽

V.O. Yukhymchuk ◽

I.S. Babichuk ◽

Ye. O. Havryliuk ◽

O.V. Parasyuk ◽

...

Keyword(s):

Low Temperature ◽

Raman Scattering ◽

Single Crystal ◽

Vibrational Spectroscopy ◽

First Principle ◽

First Principle Calculations ◽

Polarized Raman

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

Applied Spectroscopy ◽

10.1366/000370273774333245 ◽

1973 ◽

Vol 27 (5) ◽

pp. 382-385 ◽

Cited By ~ 12

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.

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On the Dependence of Vibrational Raman Intensity on the Wavelength of Incident Light

The Journal of Chemical Physics ◽

10.1063/1.1676771 ◽

1971 ◽

Vol 55 (9) ◽

pp. 4438-4443 ◽

Cited By ~ 287

Author(s):

A. C. Albrecht ◽

M. C. Hutley

Keyword(s):

Incident Light ◽

Raman Intensity

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Probing the spin structure of the fractional quantum Hall magnetoroton with polarized Raman scattering

Physical Review Research ◽

10.1103/physrevresearch.3.023040 ◽

2021 ◽

Vol 3 (2) ◽

Author(s):

Dung Xuan Nguyen ◽

Dam Thanh Son

Keyword(s):

Raman Scattering ◽

Spin Structure ◽

Quantum Hall ◽

Fractional Quantum ◽

Fractional Quantum Hall ◽

Polarized Raman

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Three-Dimensional Finite-Difference Time-Domain Method Modeling of Nanowire Optical Probe

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.602-605.3359 ◽

2014 ◽

Vol 602-605 ◽

pp. 3359-3362

Author(s):

Chun Li Zhu ◽

Jing Li

Keyword(s):

Finite Difference ◽

Time Domain ◽

Finite Difference Time Domain ◽

Incident Light ◽

Near Field ◽

Three Dimensional ◽

Polarization Direction ◽

Near Field Imaging ◽

Difference Time ◽

Field Imaging

In this paper, output near fields of nanowires with different optical and structure configurations are calculated by using the three-dimensional finite-difference time-domain (3D FDTD) method. Then a nanowire with suitable near field distribution is chosen as the probe for scanning dielectric and metal nanogratings. Scanning results show that the resolution in near-field imaging of dielectric nanogratings can be as low as 80nm, and the imaging results are greatly influenced by the polarization direction of the incident light. Compared with dielectric nanogratings, metal nanogratings have significantly enhanced resolutions when the arrangement of gratings is perpendicular to the polarization direction of the incident light due to the enhancement effect of the localized surface plasmons (SPs). Results presented here could offer valuable references for practical applications in near-field imaging with nanowires as optical probes.

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