.:Georges Boulon:. Université-Claude Bernard Lyon1 | Page personnelle
.:Georges Boulon:. Université-Lyon1 | Page Personnelle Retour coopérations
Coopération entre l'UCBLyon1(LPCML-UMR 5620 CNRS) et l'Universidad Autonoma de Madrid (Departamento de Fisica Aplicada)


G.Boulon* and J.Garcia-Solé**

*Physical Chemistry of Luminescent Materials,ClaudeBernard/Lyon1 University,
UMR CNRS 5620, Villeurbanne, France
**Departamento de fisica de Materiales, C-4 Universidad Autonoma
de Madrid, Madrid Spain

Research Topics

1-Rutherford-Backscattering and Laser Spectroscopy techniques as probes of the rare earth ion location in LiNbO3 crystals
LiNbO3 is a nonlinear crystal which combines excellent nonlinear optical properties with the possibility of trivalent rare earth doping [1]. As an example,doping with Nd3+ ion has permitted the development of self-frequency-doubled, self-Q-switched and self-mode-locked lasers, taking advantage of the combination of the Nd3+gain with nonlinear properties of LiNbO3. The main spectroscopic data of Nd3+ ions relevant for laser applications, both, in the infrared and the green by second harmonic generation, as polarized absorption and emission cross sections, radiative lifetime, excited state absorption, quantum efficiency and non-equivalent centres have been determined and will be shown [2].CW laser properties of the infrared fundamental wavelength and of the green second harmonic wavelength will also be given and compared with other Nd3+ ion based self frequency doubling solid state lasers [3]. Moreover, we shall add important spectroscopic results for Yb3+ and Er3+ laser ions very useful for infrared applications [4-5]. A key problem in these rare earth-doped systems has been to determine the lattice location of the activator. This is of importance because some of their attractive features depend on the crystal field surrounding the dopant.We shall present our approach by using two complementary techniques:site-selective spectroscopy and Rutherford Backscattering Spectroscopy (RBS) channeling [6-7]. It has been concluded that the rare earth ions occupy off-centred Li octahedral sites in the lattice, giving place to non-equivalent optical centres depending on their cationic sizes.

[1] E.Lallier, Appl. Opt., 31 (1992) 5276
[2] R.Burlot, R.Moncorgé, H.Manaa, G.Boulon, Y.Guyot, J.Garcia Solé, D.Cochet Muchy,Optical Materials 6 (1996) 313
[3] D.Jaque,J.Capmany,J.Sanz Garcia,A.Brenier, G.Boulon, J.Garcia Solé,Optical Materials 13 (1999)147
[4]R.Burlot,J.L.Doualan,P.Leboulanger,T.Han,H.Gallagher,R.Moncorgé,G.Boulon,J.ofAppl. Phys. (1999)
[5]G.Foulon,M.Ferriol,A.Brenier,M.T.Cohen-Adad,G.Boulon,Chemical
Physics Letters 245 (1995) 555
[6] J.Garcia Solé,T.Petit,H.Jaffrezic,G.Boulon,Europhys.Lett.24 (1993) 719
[7]A.Lorenzo,H.Loro,J.MunozSantiuste,M.Terile,G.Boulon,L.Bausa,J.GarciaSolé,Optical Materials 8 (1997) 55
[2] R.Burlot, R.Moncorgé, H.Manaa, G.Boulon, Y.Guyot, J.Garcia Solé, D.Cochet Muchy,Optical Materials 6 (1996) 313
[3] D.Jaque,J.Capmany,J.Sanz Garcia,A.Brenier, G.Boulon, J.Garcia Solé,Optical Materials 13 (1999)147

Mutual articles
1-G.Lifante, F.Cusso, F.Jaque, J. A.Sanz-Garcia, A.Monteil, B.Varrel, G.Boulon and J.Garcia Solé, Chem. Phys. Lett., 176 (1991) 482.
2- J.Garcia Solé,T.Petit,H.Jaffrezic,G.Boulon,Europhys.Lett.24 (1993) 719
3-A.Lorenzo,H.Jaffrezic,B.Roux,G.Boulon,L.E.Bausa and J.Garcia-Solé
Physical Review B 52 (1995) 6278
5-A.Lorenzo,H.Loro,J.MunozSantiuste,M.Terile,G.Boulon,L.Bausa,J.GarciaSolé,Optical Materials 8 (1997) 55
6-R.Burlot, R.Moncorgé, H.Manaa, G.Boulon, Y.Guyot, J.Garcia Solé, D.Cochet Muchy,Optical Materials 6 (1996) 313
7-D.Jaque,J.Capmany,J.Sanz Garcia,A.Brenier, G.Boulon, J.Garcia Solé,Optical Materials 13 (1999)147

2-Self frequency summing systems for red, green, blue and UV laser light generation with Nd3+-doped YAB borate,LiNbO3 and LaBGeO5 crystals.
8- D. Jaque, J. Capmany, J. Sanz Garcia, A. Brenier, G. Boulon, J. Garcia Solé
Optical Materials 13 (1999) 147
Nd3+ ion based self frequency doubling solid state lasers.
9-A. Brenier, G. Boulon, D. Jaque, J. Garcia Solé
Optical Materials 13 (1999) 311
Self-frequency-summing NYAB laser for tunable blue generation.
10-D. Jaque, J. Capmany, J. Garcia Solé, A. Brenier, G. Boulon
Appl. Phy. B 70 (2000) 11
Continuous-wave laser properties of4F3/2 4I13/2 channel in the Nd3+ LiNbO3 :ZnO non-linear crystal.
11-D. Jaque, J. Garcia Solé, A. Brenier, G. Boulon, Z.D. Luo
Eur. Phys. J. AP 10 (2000) 29

3-Crystal growth of undoped / rare earth-doped Ba2NaNb5O15 (BNN) nonlinear crystal in the tetragonal phase of the stable Tungsten Bronze type structure for Second Harmonic Generation.
12-J.J.Romero, A.Brenier , L.Bausa, G.Boulon, J.Garcia Sole, A.Kaminskii
Excited-state absorption at 1060 nm of Nd3+ ions in BNN crystal
Optics Communication 191 (2001) 371

4-Laser properties in Nd3+-doped garnet crystals
13-J.Romero,D.Jaque, F.Ramos-Lara,G.Boulon,Y.Guyot,U.Caldino,J.Garcia Solé
Stimulated emission, excited state absorption and laser performance optimization of the
Nd3+ :Ca3Ga2Ge3O12 laser system
J. of Applied Physics 91 n°4 (2002) 1754-1760

5-Laser properties in Yb3+-doped garnet crystals
14-Growth, spectroscopic and laser properties of Yb3+-doped Lu3Al5O12 garnet crystal
A. Brenier, Y. Guyot, H. Cañibano, G. Boulon, A. Ródenas, D. Jaque, A. Eganyan, A.G. Petrosyan
Journal of the Optical Society of America B (accepted on September 2005)

Mutual Thesis
1-I.Vergara Ogando, July 1991- UAMadrid
Ti3+ and Cr3+ spectroscopy in Laser Materials.

2-A.Lorenzo, November 8, 1996-UAMadrid
Location of rare earth active ions in LiNbO3 by using Laser spectroscopy and Rutherford Backscattering techniques

3-R.Burlot, December 17, 1997-UCBLyon1
LHPG and Czochralski crystal growth ,spectroscopic characterizations of undoped or Nd,Er-doped LiNbO3 and LiTaO3 nonlinear crystals

4-D.Jaque , November 17,1999-UAMadrid
Spectroscopic and laser properties of stoichiometric Neodymium-Yttrium-aluminium borate self-frequency nonlinear crystals. Emissions in blue, green and red spectral ranges.

5-J.J.Romero, 2001-UAMadrid

Mis à jour le: 24/10/2017