Inferring periodic orbits from spectra of simple shaped micro-lasers
Abstract
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.
Keywords
Cite
@article{arxiv.0704.1950,
title = {Inferring periodic orbits from spectra of simple shaped micro-lasers},
author = {M. Lebental and N. Djellali and C. Arnaud and J. -S. Lauret and J. Zyss and R. Dubertrand and C. Schmit and E. Bogomolny},
journal= {arXiv preprint arXiv:0704.1950},
year = {2009}
}
Comments
13 pages, 19 figures, accepted for publication in Physical Review A