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UNIVERSITY OF BUCHAREST FACULTY OF PHYSICS Guest 2024-11-27 9:27 |
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Conference: Bucharest University Faculty of Physics 2014 Meeting
Section: Optics, Spectroscopy, Plasma and Lasers
Title: Non-linear applications of ferrocene thin films grown by matrix-assisted pulsed laser evaporation
Authors: Simona BRAJNICOV(1), Andreea MATEI(2), M. FILIPESCU(2) , Bogdana MITU(2), V. ION(2), I. IONITA(1), Ana EMANDI(3,4), Maria DINESCU(2)
Affiliation: 1) University of Bucharest, Faculty of Physics, 405 Atomistilor St, RO-077125, Magurele, Romania
2) National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St, RO-077125, Magurele, Romania
3) University of Bucharest, Faculty of Chemistry, 90-92 Panduri St., RO-050663, Bucharest, Romania
4) National Institute for Research and Development in Optoelectronics, 1 Atomistilor St., Magurele RO-077125, Bucharest, Romania
E-mail simonabrajnicov@yahoo.com
Keywords: ferrocene, thin films, second harmonic generation
Abstract: Ferrocene-derivatives have been intensely studied for applications in optoelectronics and sensor development, in bulk or as thin films. In this work, we report on the growth of such thin films by matrix-assisted pulsed laser evaporation (MAPLE), at low fluences (0.2–0.7 J/cm2), using a Nd:YAG pulsed laser device (4ω / 266 nm, τ = 7 ns, ν = 10 Hz). Spectroscopic-ellipsometry (SE), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and atomic force microscopy (AFM) techniques, were used to investigate the structure, morphology and optical properties of the films. Second harmonic generation (SHG) capabilities were evidenced when irradiating the films by a Ti:sapphire pulsed laser (1ω / 800 nm, τ = 60 fs, ν = 80 MHz, P = 700 mW).
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