Spontaneous one-dimensional optical-bandgap formation in suspensions of dielectric particles

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Abstract

It is shown that under certain conditions a collection of dielectric Rayleigh particles suspended in a viscous medium and enclosed in a high-Q bidirectional ring cavity pumped by a strong laser field can spontaneously self-organise to produce a one-dimensional optical bandgap. Using a linear stability analysis, a dispersion relation is derived which determines the region of parameter space in which the region of spontaneous bandgap formation occurs. A numerical analysis is carried out to observe the dynamics of the interaction in the nonlinear regime. In the nonlinear regime, depletion of the pump field due to the formation of the bandgap is almost 100%. An important feature of the optical bandgap described here is its inherent tunability.

LanguageEnglish
Pages217-222
Number of pages6
JournalEPL: A Letters Journal Exploring the Frontiers of Physics
Volume62
Issue number2
DOIs
Publication statusPublished - Apr 2003

Fingerprint

numerical analysis
Q factors
depletion
pumps
cavities
rings
lasers
interactions

Keywords

  • atomic recoil laser
  • optical-bandgap formation
  • dielectric particles

Cite this

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title = "Spontaneous one-dimensional optical-bandgap formation in suspensions of dielectric particles",
abstract = "It is shown that under certain conditions a collection of dielectric Rayleigh particles suspended in a viscous medium and enclosed in a high-Q bidirectional ring cavity pumped by a strong laser field can spontaneously self-organise to produce a one-dimensional optical bandgap. Using a linear stability analysis, a dispersion relation is derived which determines the region of parameter space in which the region of spontaneous bandgap formation occurs. A numerical analysis is carried out to observe the dynamics of the interaction in the nonlinear regime. In the nonlinear regime, depletion of the pump field due to the formation of the bandgap is almost 100{\%}. An important feature of the optical bandgap described here is its inherent tunability.",
keywords = "atomic recoil laser, optical-bandgap formation , dielectric particles",
author = "Robb, {G R M} and McNeil, {B W J}",
year = "2003",
month = "4",
doi = "10.1209/epl/i2003-00349-x",
language = "English",
volume = "62",
pages = "217--222",
journal = "EPL: A Letters Journal Exploring the Frontiers of Physics",
issn = "0295-5075",
number = "2",

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T1 - Spontaneous one-dimensional optical-bandgap formation in suspensions of dielectric particles

AU - Robb, G R M

AU - McNeil, B W J

PY - 2003/4

Y1 - 2003/4

N2 - It is shown that under certain conditions a collection of dielectric Rayleigh particles suspended in a viscous medium and enclosed in a high-Q bidirectional ring cavity pumped by a strong laser field can spontaneously self-organise to produce a one-dimensional optical bandgap. Using a linear stability analysis, a dispersion relation is derived which determines the region of parameter space in which the region of spontaneous bandgap formation occurs. A numerical analysis is carried out to observe the dynamics of the interaction in the nonlinear regime. In the nonlinear regime, depletion of the pump field due to the formation of the bandgap is almost 100%. An important feature of the optical bandgap described here is its inherent tunability.

AB - It is shown that under certain conditions a collection of dielectric Rayleigh particles suspended in a viscous medium and enclosed in a high-Q bidirectional ring cavity pumped by a strong laser field can spontaneously self-organise to produce a one-dimensional optical bandgap. Using a linear stability analysis, a dispersion relation is derived which determines the region of parameter space in which the region of spontaneous bandgap formation occurs. A numerical analysis is carried out to observe the dynamics of the interaction in the nonlinear regime. In the nonlinear regime, depletion of the pump field due to the formation of the bandgap is almost 100%. An important feature of the optical bandgap described here is its inherent tunability.

KW - atomic recoil laser

KW - optical-bandgap formation

KW - dielectric particles

U2 - 10.1209/epl/i2003-00349-x

DO - 10.1209/epl/i2003-00349-x

M3 - Article

VL - 62

SP - 217

EP - 222

JO - EPL: A Letters Journal Exploring the Frontiers of Physics

T2 - EPL: A Letters Journal Exploring the Frontiers of Physics

JF - EPL: A Letters Journal Exploring the Frontiers of Physics

SN - 0295-5075

IS - 2

ER -