Optical amplification enhancement in photonic crystals

R. Sapienza, M. Leonetti, L. S. Froufe-Pérez, J. F. Galisteo-López, C. Conti, and C. López
Phys. Rev. A 83, 023801 – Published 4 February 2011

Abstract

Improving and controlling the efficiency of a gain medium is one of the most challenging problems of laser research. By measuring the gain length in an opal-based photonic crystal doped with laser dye, we demonstrate that optical amplification is more than twenty-fold enhanced along the Γ-K symmetry directions of the face-centered-cubic photonic crystal. These results are theoretically explained by directional variations of the density of states, providing a quantitative connection between density of the states and light amplification.

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  • Received 16 September 2010

DOI:https://doi.org/10.1103/PhysRevA.83.023801

© 2011 American Physical Society

Authors & Affiliations

R. Sapienza1,*, M. Leonetti1, L. S. Froufe-Pérez1, J. F. Galisteo-López1, C. Conti2, and C. López1,†

  • 1Instituto de Ciencia de Materiales de Madrid (CSIC) and Unidad Asociada CSIC-UVigo, Cantoblanco, E-28049 Madrid, Spain
  • 2Research Center INFM-CNR, c/o Universitá di Roma Sapienza, I-00185 Roma, Italy

  • *Current address: ICFOInstitut de Ciencies Fotoniques, Mediterranean Technology Park, E-08860 Castelldefels (Barcelona), Spain.
  • www.luxrerum.org; cefe@icmm.csic.es

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Vol. 83, Iss. 2 — February 2011

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