Observation of the Interaction of Plasmons with Longitudinal Optical Phonons in GaAs

Mooradian, A.; Wright, George B.

doi:10.1103/physrevlett.16.999

Cited by 450 publications

(169 citation statements)

References 7 publications

Supporting

Mentioning

160

Contrasting

Unclassified

Order By: Relevance

“…When the energy of plasmons becomes comparable with that of phonons, hybridization of plasmon and phonon modes occurs, leading to the breakdown of the BornOppenheimer approximation [85]. The interactions of plasmons with optical phonons in semiconductors have been studied [86]. In this section, we will review recent studies of plasmon-phonon coupling in graphene, including both theoretical investigations and experimental demonstrations.…”

Section: Plasmon-phonon Interactions In Graphene On a Polar Substratementioning

confidence: 99%

Graphene-plasmon polaritons: From fundamental properties to potential applications

et al. 2016

View full text Add to dashboard Cite

With unique possibilities for controlling light in nanoscale devices, graphene plasmonics has opened new perspectives to the nanophotonics community with potential applications in metamaterials, modulators, photodetectors, and sensors. In this paper, we briefly review the recent exciting progress in graphene plasmonics. We begin with a general description of the optical properties of graphene, particularly focusing on the dispersion of graphene-plasmon polaritons. The dispersion relation of graphene-plasmon polaritons of spatially extended graphene is expressed in terms of the local response limit with an intraband contribution. With this theoretical foundation of graphene-plasmon polaritons, we then discuss recent exciting progress, paying specific attention to the following topics: excitation of graphene plasmon polaritons, electron-phonon interactions in graphene on polar substrates, and tunable graphene plasmonics with applications in modulators and sensors. Finally, we address some of the apparent challenges and promising perspectives of graphene plasmonics.

show abstract

Section: Plasmon-phonon Interactions In Graphene On a Polar Substratementioning

confidence: 99%

Graphene-plasmon polaritons: From fundamental properties to potential applications

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Most existing studies focus on spin-dependent phonon processes in magnetic materials (14) or the phonon-plasmon coupling (15). The absence of local spin moments in MoS 2 imposes constraints on possible explanations.…”

Section: Significancementioning

confidence: 99%

Giant magneto-optical Raman effect in a layered transition metal compound

Zhang

Fan

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

View full text Add to dashboard Cite

We report a dramatic change in the intensity of a Raman mode with applied magnetic field, displaying a gigantic magnetooptical effect. Using the nonmagnetic layered material MoS 2 as a prototype system, we demonstrate that the application of a magnetic field perpendicular to the layers produces a dramatic change in intensity for the out-of-plane vibrations of S atoms, but no change for the in-plane breathing mode. The distinct intensity variation between these two modes results from the effect of field-induced broken symmetry on Raman scattering cross-section. A quantitative analysis on the field-dependent integrated Raman intensity provides a unique method to precisely determine optical mobility. Our analysis is symmetry-based and material-independent, and thus the observations should be general and inspire a new branch of inelastic light scattering and magneto-optical applications.Raman | layered | magneto-optical | broken symmetry | phonon

show abstract

“…Such a mode was proposed by Varga,7 and observed in GaAs by Mooradian and Wright. 6 Kozawa et al have reported free carrier concentration determination by Raman scattering from analysis of the LO phonon-plasmon coupled mode in GaN. 8 It was found that, as the electron concentration increases, the LO phonon couples with the overdamped plasmon, thereby shifting the A 1 (LO) peak toward higher frequency and broadening the peak asymmetrically.…”

Section: Introductionmentioning

confidence: 99%

“…5 The coupling between the plasmon and the LO phonon produces two coupled LO phonon-plasmon ͑LPP͒ modes, ϩ (LPP ϩ ) and Ϫ (LPP Ϫ ). 6 The coupling is through the macroscopic electric fields of these excitations. The high frequency LPP ϩ mode behaves like a LO phonon at low carrier densities.…”

Section: Introductionmentioning

confidence: 99%

Micro-Raman study of electronic properties of inversion domains in GaN-based lateral polarity heterostructures

Park

Cuomo

Rodriguez

et al. 2003

Journal of Applied Physics

View full text Add to dashboard Cite

PublicationThe electronic properties of inversion domains in a GaN-based lateral polarity heterostructure were investigated using micro-Raman spectroscopy. The piezoelectric polarization of each domain was calculated from strain determined via Raman scattering. The free carrier concentration and electron mobility were deduced from the longitudinal optical phonon-plasmon coupled mode. The electron concentration in the N-face domain was slightly higher than that in the Ga-face domain. It appears that during growth, a larger number of donor impurities may have been incorporated into the N-face domain than into the Ga-face domain.

show abstract

Observation of the Interaction of Plasmons with Longitudinal Optical Phonons in GaAs

Cited by 450 publications

References 7 publications

Graphene-plasmon polaritons: From fundamental properties to potential applications

Graphene-plasmon polaritons: From fundamental properties to potential applications

Giant magneto-optical Raman effect in a layered transition metal compound

Micro-Raman study of electronic properties of inversion domains in GaN-based lateral polarity heterostructures

Contact Info

Product

Resources

About