IAZZOLINO, A; OULD HAMOUDA, A; NAÏM, Ahmad; STEFÁNCZYK, Olaf; ROSA, Patrick; FREYSZ, Eric

doi:10.1063/1.4981254

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IAZZOLINO, A
Laboratoire Ondes et Matière d'Aquitaine [LOMA]

OULD HAMOUDA, A
Laboratoire Ondes et Matière d'Aquitaine [LOMA]

NAÏM, Ahmad
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Applied Physics Letters. 2017, vol. 110, n° 16, p. 161908 (5 p.)

American Institute of Physics

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We measure linear absorption, circular dichroïsm, second harmonic and sum frequency generation in the [-Fe(phen) 3 ](Δ-As 2 (tartarate) 2), [-Fe(phen) 3 ](-As 2 (tartarate) 2) enantiomers of an Fe(II) complex. In the solid state, the chirality of this compound results from the introduction of the (As 2 (tartarate) 2) chiral anions. Linear absorption and X-ray diffraction indicate that Fe(II) is in the low-spin state. Circular dichroïsm reveals that in the solid state, these compounds are chiral, whereas the complexes racemize in solution. A large second harmonic generation signal is recorded using thin films from these two enantiomers. The second-order susceptibility of these compounds is evaluated across the visible spectral range. It displays a resonance at 520 nm, which is associated with the metal-to-ligand charge transfer occurring within the complex. At its maximum, = 6.4 pm V-1 is more than 1.4 times larger than the well-known beta-BaB 2 O 4 nonlinear crystal (~4.4 pm V-1). Finally, we demonstrate a useful application for a thin film from this compound, which characterizes the cross-correlation of two femtosecond laser pulses.< Leer menos

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Nonlinear optical properties and application of a chiral and photostimulable iron(II) compound

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