Collective free-carrier scattering in semiconductors

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We present an analysis of an undoped semiconductor strongly pumped by a coherent electromagnetic radiation field. The free-carrier dynamics and the incident and scattered fields are described classically and self-consistently. The analysis predicts the existence of a collective instability which simultaneously generates a strong free-carrier grating along the propagation direction and a coherently backscattered radiation field. An example is given showing scattered intensities approaching 100% of the pump intensity. A realistic experiment to enable observation of this phenomenon is described.
Original languageEnglish
Pages (from-to)165208-165211
Number of pages3
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume63
Issue number16
DOIs
Publication statusPublished - Apr 2001

Fingerprint

Electromagnetic waves
radiation distribution
coherent electromagnetic radiation
Pumps
Scattering
Semiconductor materials
Radiation
scattering
Experiments
gratings
pumps
propagation
Direction compound

Keywords

  • semiconductors
  • electromagnetic radiation field
  • free-carrier dynamics
  • scattered fields
  • optics

Cite this

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title = "Collective free-carrier scattering in semiconductors",
abstract = "We present an analysis of an undoped semiconductor strongly pumped by a coherent electromagnetic radiation field. The free-carrier dynamics and the incident and scattered fields are described classically and self-consistently. The analysis predicts the existence of a collective instability which simultaneously generates a strong free-carrier grating along the propagation direction and a coherently backscattered radiation field. An example is given showing scattered intensities approaching 100{\%} of the pump intensity. A realistic experiment to enable observation of this phenomenon is described.",
keywords = "semiconductors, electromagnetic radiation field, free-carrier dynamics, scattered fields, optics",
author = "G.R.M. Robb and B.W.J. McNeil and I. Galbraith and D.A. Jaroszynski",
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Collective free-carrier scattering in semiconductors. / Robb, G.R.M.; McNeil, B.W.J.; Galbraith, I.; Jaroszynski, D.A.

In: Physical Review B: Condensed Matter and Materials Physics, Vol. 63, No. 16, 04.2001, p. 165208-165211.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Collective free-carrier scattering in semiconductors

AU - Robb, G.R.M.

AU - McNeil, B.W.J.

AU - Galbraith, I.

AU - Jaroszynski, D.A.

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N2 - We present an analysis of an undoped semiconductor strongly pumped by a coherent electromagnetic radiation field. The free-carrier dynamics and the incident and scattered fields are described classically and self-consistently. The analysis predicts the existence of a collective instability which simultaneously generates a strong free-carrier grating along the propagation direction and a coherently backscattered radiation field. An example is given showing scattered intensities approaching 100% of the pump intensity. A realistic experiment to enable observation of this phenomenon is described.

AB - We present an analysis of an undoped semiconductor strongly pumped by a coherent electromagnetic radiation field. The free-carrier dynamics and the incident and scattered fields are described classically and self-consistently. The analysis predicts the existence of a collective instability which simultaneously generates a strong free-carrier grating along the propagation direction and a coherently backscattered radiation field. An example is given showing scattered intensities approaching 100% of the pump intensity. A realistic experiment to enable observation of this phenomenon is described.

KW - semiconductors

KW - electromagnetic radiation field

KW - free-carrier dynamics

KW - scattered fields

KW - optics

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U2 - 10.1103/PhysRevB.63.165208

DO - 10.1103/PhysRevB.63.165208

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JO - Physical Review B: Condensed Matter and Materials Physics

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