Barbara Paci et al 2000 J. Opt. A: Pure Appl. Opt. 2 268 doi:10.1088/1464-4258/2/4/304
Barbara Paci1,4, Jean-Michel Nunzi1, Rémi Anémian2, Chantal Andraud2, André Collet2, Yannick Morel3 and Patrice L Baldeck3
Show affiliationsWe report on nonlinear absorption measurements of tetraphenyl-diamine dyes developed for use as transparent materials for optical limiting applications in the visible range. All the excited state properties which are relevant to the process are investigated experimentally using three different and complementary nonlinear spectroscopy tools. Through a modification of the substitution of the peripheral benzene rings of the original dye, we could significantly improve its optical limiting activity, especially in the red region where it had a rather poor efficiency.
07.60.Fs Polarimeters and ellipsometers
78.40.Me Organic compounds and polymers
42.65.Hw Phase conjugation; photorefractive and Kerr effects
42.79.-e Optical elements, devices, and systems
42.70.Nq Other nonlinear optical materials; photorefractive and semiconductor materials
Soft matter, liquids and polymers
Condensed matter: electrical, magnetic and optical
Issue 4 (July 2000)
Received 14 December 1999
Barbara Paci et al 2000 J. Opt. A: Pure Appl. Opt. 2 268
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