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Proceedings Paper

Broadband optical limiting optimization by combination of carbon nanotubes and two-photon absorbing chromophores in liquids
Author(s): Didier Riehl; Nicolas Izard; Laurent Vivien; Eric Anglaret; Eric Doris; Cecilia Menard; Charles Mioskowski; Laurent Porres; Olivier Mongin; M. Charlot; Mireille Blanchard-Desce; Remi Anemian; Jean-Christophe Mulatier; Cyril Barsu; Chantal Andraud
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Paper Abstract

Nowadays, it seems evident that a unique nonlinear optical (NLO)material cannot offer simultaneously linear transparency,colour neutrality and broadband optical limiting efficiency at the performance levels required for sensor and eye protection against all laser threats.Several combinations of NLO materials were investigated last few years, including multicell or multilayer geometries. The approach presented here combines multiphoton absorption with nonlinear scattering. For that purpose, singlewall carbon nanotubes are suspended in various solutions of multiphoton absorbing chromophores. Such combinations allow us to obtain optical limiters of high linear transmittance and excellent colour neutrality. Broadband optical limiting is expected from the association of these two broadband materials,and enhanced optical limiting efficiency is expected from cumulative effects in the nanosecond regime. We report here on the optical limiting studies performed with nanosecond laser pulses on several families of multiphoton absorbers in chloroform,with carbon nanotubes suspended in the solutions. The performances of these samples are compared with those of simple multiphoton absorber solutions and carbon nanotube suspensions, and the differences observed are interpreted in terms of cumulative NLO effects and adverse aggregation phenomenon. Ways to optimise stability of the suspensions are also experimented and discussed.

Paper Details

Date Published: 3 November 2003
PDF: 11 pages
Proc. SPIE 5211, Nonlinear Optical Transmission and Multiphoton Processes in Organics, (3 November 2003); doi: 10.1117/12.506692
Show Author Affiliations
Didier Riehl, Ctr. Technique d'Arcueil (France)
Nicolas Izard, Ctr. Technique d'Arcueil (France)
Univ. Montpellier II (France)
Laurent Vivien, Ctr. Technique d'Arcueil (France)
Eric Anglaret, Univ. Montpellier II (France)
Eric Doris, CEA Saclay (France)
Cecilia Menard, CEA Saclay (France)
Charles Mioskowski, CEA Saclay (France)
Laurent Porres, Univ. de Rennes I (France)
Olivier Mongin, Univ. de Rennes I (France)
M. Charlot, Univ. de Rennes I (France)
Mireille Blanchard-Desce, Univ. de Rennes I (France)
Remi Anemian, Ecole Normale Superieure de Lyon (France)
Jean-Christophe Mulatier, Ecole Normale Superieure de Lyon (France)
Cyril Barsu, Ecole Normale Superieure de Lyon (France)
Chantal Andraud, Ecole Normale Superieure de Lyon (France)

Published in SPIE Proceedings Vol. 5211:
Nonlinear Optical Transmission and Multiphoton Processes in Organics
A. Todd Yeates; Kevin D. Belfield; Francois Kajzar; Christopher M. Lawson, Editor(s)

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