Superradiant light scattering and grating formation in cold atomic vapours

N. Piovella, R. Bonifacio, B.W.J. McNeil, G.R.M. Robb

Research output: Contribution to journalArticle

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Abstract

A semi-classical theory of coherent light scattering from an elongated sample of cold atoms exposed to an off-resonant laser beam is presented. The model, which is a direct extension of that of the collective atomic recoil laser, describes the emission of two superradiant pulses along the sample's major axis simultaneous with the formation of a bidimensional atomic grating inside the sample. It provides a simple physical picture of the recent observation of collective light scattering from a Bose-Einstein condensate [Science 285 (1999) 571]. In addition, the model provides an analytical description of the temporal evolution of the scattered light intensity which shows good quantitative agreement with the experimental results of Inouye et al.
Original languageEnglish
Pages (from-to)165-170
Number of pages5
JournalOptics Communications
Volume187
Issue number1
DOIs
Publication statusPublished - Jan 2001

Fingerprint

Light scattering
light scattering
Vapors
gratings
vapors
Coherent scattering
Laser beams
Laser pulses
coherent scattering
coherent light
Bose-Einstein condensates
Atoms
luminous intensity
Lasers
laser beams
pulses
lasers
atoms

Keywords

  • superradiance
  • BEC
  • CARL
  • atomic grating
  • optics

Cite this

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Superradiant light scattering and grating formation in cold atomic vapours. / Piovella, N.; Bonifacio, R.; McNeil, B.W.J.; Robb, G.R.M.

In: Optics Communications, Vol. 187, No. 1, 01.2001, p. 165-170.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Superradiant light scattering and grating formation in cold atomic vapours

AU - Piovella, N.

AU - Bonifacio, R.

AU - McNeil, B.W.J.

AU - Robb, G.R.M.

PY - 2001/1

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N2 - A semi-classical theory of coherent light scattering from an elongated sample of cold atoms exposed to an off-resonant laser beam is presented. The model, which is a direct extension of that of the collective atomic recoil laser, describes the emission of two superradiant pulses along the sample's major axis simultaneous with the formation of a bidimensional atomic grating inside the sample. It provides a simple physical picture of the recent observation of collective light scattering from a Bose-Einstein condensate [Science 285 (1999) 571]. In addition, the model provides an analytical description of the temporal evolution of the scattered light intensity which shows good quantitative agreement with the experimental results of Inouye et al.

AB - A semi-classical theory of coherent light scattering from an elongated sample of cold atoms exposed to an off-resonant laser beam is presented. The model, which is a direct extension of that of the collective atomic recoil laser, describes the emission of two superradiant pulses along the sample's major axis simultaneous with the formation of a bidimensional atomic grating inside the sample. It provides a simple physical picture of the recent observation of collective light scattering from a Bose-Einstein condensate [Science 285 (1999) 571]. In addition, the model provides an analytical description of the temporal evolution of the scattered light intensity which shows good quantitative agreement with the experimental results of Inouye et al.

KW - superradiance

KW - BEC

KW - CARL

KW - atomic grating

KW - optics

UR - http://arxiv.org/abs/cond-mat?papernum=0006135

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