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

Robb, G R M and McNeil, B W J (2003) Spontaneous one-dimensional optical-bandgap formation in suspensions of dielectric particles. EPL: A Letters Journal Exploring the Frontiers of Physics, 62 (2). pp. 217-222. ISSN 0295-5075

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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.

Item type: Article
ID code: 33761
Keywords: atomic recoil laser, optical-bandgap formation , dielectric particles, Physics, Physics and Astronomy(all)
Subjects: Science > Physics
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 18 Oct 2011 15:28
    Last modified: 05 Sep 2014 11:11
    URI: http://strathprints.strath.ac.uk/id/eprint/33761

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