Inferring periodic orbits from spectra of simple shaped micro-lasers

Dielectric micro-cavities are widely used as laser resonators and characterizations of their spectra are of interest for various applications. We experimentally investigate micro-lasers of simple shapes (Fabry-Perot, square, pentagon, and disk). Their lasing spectra consist mainly of almost equidist...

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Bibliographic Details
Published in:arXiv.org 2007-06
Main Authors: Lebental, M, Djellali, N, Arnaud, C, J -S Lauret, Zyss, J, Dubertrand, R, Schmit, C, Bogomolny, E
Format: Article
Language:English
Subjects:
Disks
Holes
Lasers
Mathematical models
Orbits
Refractivity
Spectra
Online Access:Get full text
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Summary:Dielectric micro-cavities are widely used as laser resonators and characterizations of their spectra are of interest for various applications. We experimentally investigate micro-lasers of simple shapes (Fabry-Perot, square, pentagon, and disk). Their lasing spectra consist mainly of almost equidistant peaks and the distance between peaks reveals the length of a quantized periodic orbit. To measure this length with a good precision, it is necessary to take into account different sources of refractive index dispersion. Our experimental and numerical results agree with the superscar model describing the formation of long-lived states in polygonal cavities. The limitations of the two-dimensional approximation are briefly discussed in connection with micro-disks.
ISSN:2331-8422
DOI:10.48550/arxiv.0704.1950