P. A. Franken and A. E. Hill, Generation of Optical Harmonics, Generation of optical harmonics, p.118, 1961.
DOI : 10.1103/PhysRevLett.7.118

D. A. Kleinman, Nonlinear Dielectric Polarization in Optical Media, Physical Review, vol.126, issue.6, 1962.
DOI : 10.1103/PhysRev.126.1977

V. G. Dmitriev and N. D. , « Effective nonlinearity coefficients for three waveinteractions in biaxial crystals of mm2 point group symetry, p.173, 1993.

R. L. Byer, « Nonlinear optics », in « Proceedings of the sixteenth scottish universities summer school in physics, 1975.

H. Ito and H. Naito, Generalized study on angular dependence of induced second???order nonlinear optical polarizations and phase matching in biaxial crystals, Journal of Applied Physics, vol.46, issue.9, p.3992, 1975.
DOI : 10.1063/1.322151

J. J. Zondy and M. Abed, « Twin-crystal walk-off-compensated type II SHG : singlepass and cavity-enhanced experiments in KTP, J. Opt. Soc. Am. B, issue.11, p.2368, 1994.

J. F. Young and R. B. Miles, Pump Linewidth Requirement for Optical Parametric Oscillators, Journal of Applied Physics, vol.42, issue.1, p.497, 1971.
DOI : 10.1063/1.1659641

A. J. Henderson and M. Ebvrahimzadeh, Characterization of urea optical parametric oscillators pumped by excimer lasers, Journal of the Optical Society of America B, vol.7, issue.8, p.1402, 1990.
DOI : 10.1364/JOSAB.7.001402

J. D. Bierlein and H. Vanherzeele, Potassium titanyl phosphate: properties and new applications, Journal of the Optical Society of America B, vol.6, issue.4, p.622, 1989.
DOI : 10.1364/JOSAB.6.000622

L. K. Cheng, Crystal growth of KTiOPO4 isomorphs from tungstate and molybdate fluxes, Journal of Crystal Growth, vol.110, issue.4, p.697, 1991.
DOI : 10.1016/0022-0248(91)90626-G

B. Zysset and I. Biaggio, Refractive indices of orthorhombic KNbO_3 I Dispersion and temperature dependence, Journal of the Optical Society of America B, vol.9, issue.3, p.380, 1992.
DOI : 10.1364/JOSAB.9.000380

K. Kato, Parametric oscillation at 3.2 mu m in KTP pumped at 1.064 mu m, IEEE Journal of Quantum Electronics, vol.27, issue.5
DOI : 10.1109/3.83367

J. Kasparian, The critical laser intensity of self-guided light filaments in air, Applied Physics B, vol.71, issue.6, 2000.
DOI : 10.1007/s003400000463

A. Talebpour, S. Petit, and C. S. , Semi-empirical model for the rate of tunnel ionization of N2 and O2 molecule in an intense Ti:sapphire laser pulse, Optics Communications, vol.163, issue.1-3, p.29, 1999.
DOI : 10.1016/S0030-4018(99)00113-3

S. Tzortzakis and B. Prade, Time-evolution of the plasma channel at the trail of a self-guided IR femtosecond laser pulse in air, Optics Communications, vol.181, issue.1-3, p.123, 2000.
DOI : 10.1016/S0030-4018(00)00734-3

URL : https://hal.archives-ouvertes.fr/hal-00463716

W. L. Kruer, « The physics of the plasma interactions, 1966.

J. K. Ranka, R. W. Schirmer, and A. L. Gaeta, Observation of Pulse Splitting in Nonlinear Dispersive Media, Physical Review Letters, vol.77, issue.18, p.3783, 1996.
DOI : 10.1103/PhysRevLett.77.3783

J. E. Rothenberg, Pulse splitting during self-focusing in normally dispersive media, Optics Letters, vol.17, issue.8, p.583, 1992.
DOI : 10.1364/OL.17.000583

A. A. Zozulya, Propagation Dynamics of Intense Femtosecond Pulses: Multiple Splittings, Coalescence, and Continuum Generation, Physical Review Letters, vol.82, issue.7, p.1430, 1999.
DOI : 10.1103/PhysRevLett.82.1430

J. H. Marburger and . Self-focusing, Self-focusing: Theory, Progress in Quantum Electronics, vol.4, p.35, 1975.
DOI : 10.1016/0079-6727(75)90003-8

M. Mlejnek and E. M. Wright, Dynamic spatial replenishment of femtosecond pulses propagating in air, Optics Letters, vol.23, issue.5, p.382, 1998.
DOI : 10.1364/OL.23.000382

M. Mlejnek and E. M. Wright, Power dependence of dynamic spatial replenishment of femtosecond pulses propagating in air, Optics Express, vol.4, issue.7, p.223, 1999.
DOI : 10.1364/OE.4.000223.m004

A. J. Campillo and S. L. Shapiro, Periodic breakup of optical beams due to self???focusing, Applied Physics Letters, vol.23, issue.11, p.628, 1973.
DOI : 10.1063/1.1654772

M. Mlejnek and M. Kolesik, Optically Turbulent Femtosecond Light Guide in Air, Physical Review Letters, vol.83, issue.15, p.2938, 1999.
DOI : 10.1103/PhysRevLett.83.2938

J. Kasparian and R. Sauerbrey, Infrared extension of the supercontinuum generated by femtosecond terawatt laser pulses propagating in the atmosphere, Optics Letters, vol.25, issue.18, p.1397, 2000.
DOI : 10.1364/OL.25.001397

H. Nishioka and W. Odajima, Ultrabroadband flat continuum generation in multichannel propagation of terrawatt Ti:sapphire laser pulses, Optics Letters, vol.20, issue.24, p.2505, 1995.
DOI : 10.1364/OL.20.002505

J. K. Ranka and A. L. Gaeta, Breakdown of the slowly varying envelope approximation in the self-focusing of ultrashort pulses, Optics Letters, vol.23, issue.7, p.534, 1998.
DOI : 10.1364/OL.23.000534

S. A. Diddams and H. K. Eaton, Amplitude and phase measurements of femtosecond pulse splitting in nonlinear dispersive media, Optics Letters, vol.23, issue.5, p.379, 1998.
DOI : 10.1364/OL.23.000379

O. G. Kosareva and V. P. Kandidov, Conical emission from laser???plasma interactions in the filamentation of powerful ultrashort laser pulses in air, Optics Letters, vol.22, issue.17, p.1332, 1997.
DOI : 10.1364/OL.22.001332

I. Golub, Optical characteristics of supercontinuum generation, Optics Letters, vol.15, issue.6, p.305, 1990.
DOI : 10.1364/OL.15.000305

Q. Xing, K. Y. Yoo, and A. R. , Conical emission by four-photon parametric generation by using femtosecond laser pulses, Applied Optics, vol.32, issue.12, p.2087, 1993.
DOI : 10.1364/AO.32.002087

A. 36-chiron and B. Lamouroux, « Numerical simulations of the nonlinear propagation of femtosecond optical pulses in gases », The European physical journal D 6, p.383, 1999.

F. Salin, « How to manipulate and change the characteristics of laser pulses », in « Femtosecond Laser pulses : principles and experiment, 1998.

A. Ducasse and C. Rullière, « Methods for the generation of ultrashort laser pulses

T. Brabec and F. Krausz, Nonlinear Optical Pulse Propagation in the Single-Cycle Regime, Physical Review Letters, vol.78, issue.17, p.3282, 1997.
DOI : 10.1103/PhysRevLett.78.3282

J. Yu and D. Mondelain, Backward supercontinuum emission from a filament generated by ultrashort laser pulses in air, Optics Letters, vol.26, issue.8, p.533, 2001.
DOI : 10.1364/OL.26.000533

A. Brodeur and C. Y. Chien, Moving focus in the propagation of ultrashort laser pulses in air, Optics Letters, vol.22, issue.5, p.304, 1997.
DOI : 10.1364/OL.22.000304

R. M. Measures, « Laser remote sensing, 1992.

P. Rairoux and H. Schillinger, Remote sensing of the atmosphere using ultrashort laser pulses, Applied Physics B: Lasers and Optics, vol.71, issue.4, p.573, 2000.
DOI : 10.1007/s003400000375