Valer Tosa

National Institute dor R& D in Isotopic and Molecular Technologies, Cluj-Napoca, Romania

Institution web page: http://www.itim-cj.ro
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Born: 1955

Interests: numerical modeling, ultrashort pule propagation, nonlinear optics

Details:
1) Numerical modeling of pulse propagation in gaseous media, interaction of high intensity laser pulses with atoms and molecules, high order harmonic generation and attosecond pulse characterisation
2) Numerical modeling of impurity diffusion in multilayered media, application to food packaging

Selected publications:
• V. Tosa, V. S. Yakovlev, F. Krausz. Generation of tunable isolated attosecond pulses in multi-jet systems. New Journal of Physics, 10, p. 025016, 2008.
• C. Altucci, V. Tosa, and R. Velotta. Beyond single-atom response in isolated attosecond pulse generation. Physical Review A, 75, p. 061401, 2007.
• I. Procino, R. Velotta, C. Altucci, S. Amoruso, R. Bruzzese, X. Wang, V. Tosa, G. Sansone, C. Vozzi, M. Nisoli. Hollow-fiber compression of visible, 200 fs laser pulses to 40 fs pulse duration. Optics Letters 32, 1866 (2007), 32, p. 1866, 2007.
• V. Tosa and C. H. Nam. Comment on “Direct observation of laser filamentation in high-order harmonic generation”. Optics Letters, 32, p. 2707, 2007.
• M. Kikumoto, M. Kurachi, V. Tosa, and H. Tashiro, . Flexural rigidity of individual microtubules measured by a buckling force with optical traps. Biophysical Journal, 90, p. 1687, 2006.

Publications from the ISI database, indexed between 2002-2006, produced in Romania:
• Altucci, C, Bruzzese, R, de Lisio, C, Porzio, A, Solimeno, S, Tosa, V, Diffractionless beams and their use for harmonic generation. OPTICS AND LASERS IN ENGINEERING, 37 (5), pp. 565-575, 2002.
• Brandsch, J, Mercea, P, Ruter, M, Tosa, V, Piringer, O, Migration modelling as a tool for quality assurance of food packaging. FOOD ADDITIVES AND CONTAMINANTS, 19, pp. 29-41, 2002.
• Altucci, C, Bruzzese, R, de Lisio, C, Nisoli, M, Priori, E, Stagira, S, Pascolini, M, Poletto, L, Villoresi, P, Tosa, V, Midorikawa, K, Phase-matching analysis of high-order harmonics generated by truncated Bessel beams in the sub-10-fs regime. PHYSICAL REVIEW A, 68 (3), p., 2003.
• Kim, HT, Kim, IJ, Tosa, V, Lee, YS, Nam, CH, High brightness harmonic generation at 13 nm using self-guided and chirped femtosecond laser pulses. APPLIED PHYSICS B-LASERS AND OPTICS, 78 (7-8), pp. 863-867, 2004.
• Martirosyan, AE, Altucci, C, de Lisio, C, Porzio, A, Solimeno, S, Tosa, V, Fringe pattern of the field diffracted by axicons. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 21 (5), pp. 770-776, 2004.
• Kim, HT, Kim, IJ, Lee, DG, Hong, KH, Lee, YS, Tosa, V, Nam, CH, Optimization of high-order harmonic brightness in the space and time domains. PHYSICAL REVIEW A, 69 (3), p., 2004.
• Tosa, V, Kim, HT, Kim, IJ, Nam, CH, High-order harmonic generation by chirped and self-guided femtosecond laser pulses. II. Time-frequency analysis. PHYSICAL REVIEW A, 71 (6), p., 2005.
• Kim, HT, Kim, IJ, Tosa, V, Kim, CM, Park, JJ, Lee, YS, Bartnik, A, Fiedorowicz, H, Nam, CH, Bright high-order harmonic generation from long gas jets toward coherent soft X-ray applications. IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 10 (6), pp. 1329-1338, 2004.
• Altucci, C, Tosa, V, Velotta, R, Nam, CH, Dynamical medium depletion in high-order above-threshold ionization with few-cycle laser pulses. PHYSICAL REVIEW A, 70 (6), p., 2004.
• Kim, HT, Tosa, V, Nam, CH, Synchronized generation of bright high-order harmonics using self-guided and chirped femtosecond laser pulses. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 39 (13), pp. S265-S274, 2006.
• Altucci, C, Velotta, R, Heesel, E, Springate, E, Marangos, JP, Vozzi, C, Benedetti, E, Calegari, F, Sansone, G, Stagira, S, Nisoli, M, Tosa, V, High-order harmonic generation in alkanes. PHYSICAL REVIEW A, 73 (4), p., 2006.
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