Published Papers Chemistry of Materials, Vol. 19, 3002-3010, June 2007 X. Han, A. García-Cortés, M. D. Serrano, C. Zaldo, C. Cascales "Structural and thermal properties of tetragonal double tungstate crystals intended for ytterbium laser composites"   Optics Letters, Vol. 32, pp. 1728-1730, June 2007 J. Liu, V. Petrov, H. Zhang, J. Wang, M. Jiang "Efficient passively Q-switched laser operation of Yb in the disordered NaGd(WO4)2 crystal host"   Physical Review B, Vol. 75, pp. 174208-1-14, May 2007 A. Mendez-Blas, M. Rico, V. Volkov, C. Zaldo, C. Cascales "Crystal field analysis and emission cross sections of Ho3+ in the locally disordered single-crystal laser hosts M+Bi(XO4)2 (M+=Li, Na; X=W, Mo)"   Laser & Photonics Reviews, Vol. 1, pp. 179-212, May 2007 V. Petrov, M. C. Pujol, X. Mateos, O. Silvestre, S. Rivier, M. Aguiló, R. Solé, J. Liu, U. Griebner, F. Diaz "Growth and properties of KLu(WO4)2, and novel ytterbium and thulium lasers based on this monoclinic crystalline host"   IEEE Journal of Quantum Electronics, Vol. 43, pp. 385-390, May 2007 J. Liu, X. Mateos, H. Zhang, J. Li, J. Wang, V. Petrov "High-power laser performance of Yb:YAl3(BO3)4 crystals cut along the crystallographic axes"   Optics Express, Vol. 15, pp. 5885-5892, Apr 2007 S. Rivier, X. Mateos, V. Petrov, U. Griebner, Y. E. Romanuyk, C. N. Borca, F. Gardillou, M. Pollnau "Tm:KY(WO4)2 waveguide laser"   Journal of Sol-Gel Science and Technology, Vol. 42, pp. 79-88, Apr 2007 M. Galceran, M. C. Pujol, M. Aguiló, F. Diaz "Sol-gel modified Pechini method for obtaining nanocrystalline KRE(WO4)2 (RE= Gd and Yb)"   Optics Letters, Vol. 32, pp. 488-490, March 2007 F. Gardillou, Y. E. Romanyuk, C. N. Borca, R. P. Salathé, M. Pollnau "Lu, Gd co-doped KY(WO4)2:Yb epitaxial layers: Towards integrated optics based on KY(WO4)2"   Crystal Growth & Design, Vol. 7, pp. 557-563, March 2007 I. Parreu, R. Solé, J. Massons, F. Díaz, M. Aguiló "Crystal growth, crystal morphology and surface micromorphology of Type III KGd(PO3)4 and KNd(PO3)4"   IEEE Journal of Quantum Electronics, Vol. 43, pp. 257-260, Mar 2007 Ò. Silvestre, M. C. Pujol, M. Aguiló, F. Diaz, X. Mateos, V. Petrov, U. Griebner "CW laser operation of KLu0.945Tm0.055(WO4)2-KLu(WO4)2 epilayers near 2µm"   Solid State Phenomena, Vol. 128, pp. 25-30, Mar 2007 M. T. Borowiec, A. Deptula, W. Lojkowski, S. Gierlotka, V. P. Dyakonov, W. Lada, T. Olczak, D. Wawszczak, P. Aleshkevych, W. Domuchowski, T. Zayarnyuk, M. Baranski, M. Czech, H. Szymczak "Growth and properties of ytterbium doped KY(WO4)2 nanocomposites"   Journal of Applied Physics, Vol. 101, pp. 063110-1-7, Mar 2007 A. García-Cortés, J. M. Cano-Torres, X. Han, C. Cascales, C. Zaldo, X. Mateos, S. Rivier, U. Griebner, V. Petrov, F. J. Valle "Tunable continuous wave and femtosecond mode-locked Yb3+ laser operation in NaLu(WO4)2"   Comptes Rendus Physique, Vol. 8, pp. 123-137, Mar 2007 M. Pollnau, Y. E. Romanyuk "Optical waveguides in laser crystals"   Applied Physics B, Vol. 87, pp. 111-117, Mar 2007 O. Silvestre, M. C. Pujol, F. Güell, M. Aguiló, F. Diaz, A. Brenier, G. Boulon "Crystal growth and spectroscopic analysis of codoped (Ho,Tm):KGd(WO4)2"   Applied Physics B, Vol. 86, pp. 681-685, Mar 2007 Y. Cheng, H. J. Zhang, Y. G. Yu, J. Y. Wang, X. T. Tao, J. H. Liu, V. Petrov, Z. C. Ling, H. R. Xia, M. H. Jiang "Thermal properties and continuous-wave laser performance of Yb:LuVO4 crystal"   Proc. SPIE, Vol. 6604, pp. 66040V-1-14, Mar 2007 V. Petrov, X. Mateos, S. Rivier, O. Silvestre, M. Aguiló, R. Solé, M. C. Pujol, J. Liu, U. Griebner, F. Diaz "Novel ytterbium and thulium lasers based on the monoclinic KLu(WO4)2 crystalline host"   Optics Express, Vol. 15, pp. 2360-2368, Mar 2007 I. Parreu, M. C. Pujol, M. Aguiló, F. Diaz, X. Mateos, V. Petrov "Growth, spectroscopy and laser operation of Yb:KGd(PO3)4 single crystals"   Optics Communications, Vol. 271, pp. 142-147, Mar 2007 B. Denker, B. Galagan, V. Osiko, S. Sverchkov, A. M. Balbashov, J. E. Hellström, V. Pasiskevicius, F. Laurell "Yb3+, Er3+:YAG at high temperatures: Energy transfer and spectroscopic properties"   J. Physics: Condensed Matter, Vol. 19, pp. 056206-1-16, Feb 2007 M. T. Borowiec, V. P. Dyakonov, K. Wozniak, L. Dobrzycki, M. Berkowski, E. E. Zubov, E. Michalski, A. Szewczyk, M. U. Gutowska, T. Zayarnyuk, H. Szymczak "Crystal structure and magnetic properties of potassium erbium double tungstate KEr(WO4)2"   Proc. SPIE, Vol. 6451, pp. 64511B-1-10, Feb 2007 J. Liu, V. Petrov, X. Mateos, H. Zhang, J. Wang, M. Jiang, S. Miller, G. Xu, U. Griebner, F. Noack "Continuous-wave diode-pumped Yb:LuVO4 lasers"   Optics Express, Vol. 15, pp. 1155-1160, Feb 2007 A. A. Lagatsky, C. T. A. Brown, W. Sibbett, S. J. Holmgren, C. Canalias, V. Pasiskevicius, F. Laurell, E. U. Rafailov "Efficient doubling of femtosecond pulses in aperiodically and periodically poled KTP crystals"   Journal of Applied Physics, Vol. 101, pp. 033108-1-6, Feb 2007 F. Güell, J. Massons, Jna. Gavaldá, M. C. Pujol, M. Aguiló, F. Diaz. "1.84 µm emission of Tm3+ sensitized by Yb3+ ions in monoclinic KGd(WO4)2 single crystals"   IEEE Journal of Quantum Electronics, Vol. 43, pp. 157-167, Feb 2007 A. García-Cortés, C. Cascales, A. de Andrés, C. Zaldo, E. V. Zharikov, K. A. Subbotin, S. Bjurshagen, V. Pasiskevicius, M. Rico "Raman scattering and Nd3+ laser operation in NaLa(WO4)2"   Optics Express, Vol. 15, pp. 1003-1010, Feb 2007 B. Jacobsson, J. E. Hellström, V. Pasiskevicius, F. Laurell "Widely tunable Yb:KYW laser with a volume Bragg grating"   The European Physical Journal B, Vol. 55, pp. 389-395, Feb 2007 A. D. Prokhorov, M. T. Borowiec, M. C. Pujol, I. M. Krygin, A. A. Prokhorov, V. P. Dyakonov, P. Aleshkevych, T. Zayarnyuk, H. Szymczak "EPR of Yb3+ ions in a monoclinic KY(WO4)2 single crystal"   Optics and Laser Technology, Vol. 39, pp. 558-561, Jan 2007 J. Liu, J. M. Cano-Torres, F. Esteban-Betegón, M. D. Serrano, C. Cascales, C. Zaldo, M. Rico, U. Griebner, V. Petrov "Continuous-wave diode-pumped operation of an Yb:NaLa(WO4)2 laser at room temperature"   Physica B, Vol. 388, pp. 257-260, Jan 2007 M. C. Pujol, M. Aguiló, F. Diaz, M. T. Borowiec, A. D. Prokhorov, V. P. Dyakonov, A. Nabialek, S. Piechota, H. Szymczak "Electron paramagnetic resonance studies of KYb(WO4)2"   Optics Express, Vol. 14, pp. 12183-12187, Dec 2006 J. Liu, V. Petrov, U. Griebner, F. Noack, H. Zhang, J. Wang, M. Jiang "Optical bistability in the operation of a continuous-wave diode-pumped Yb:LuVO4 laser"   J. Optical Society of America B, Vol. 23, pp. 2494-2502, Dec 2006 J. M. Cano-Torres, M. D. Serrano, C. Zaldo, M. Rico, X. Mateos, J. Liu, U. Griebner, V. Petrov, F. J. Valle, M. Galan, G. Viera "Broadly tunable laser operation near 2 µm in a locally disordered crystal of Tm3+-doped NaGd(WO4)2"   Optics Letters, Vol. 31, pp. 3294-3296, Nov 2006 J. Liu, V. Petrov, H. Zhang, J. Wang, M. Jiang "High-power laser performance of a-cut and c-cut Yb:LuVO4 crystals"   Physical Review B, Vol. 74, pp. 174114-1-15, Nov 2006 C. Cascales, M. D. Serrano, F. Esteban-Betegón, C. Zaldo, R. Peters, K. Petermann, G. Huber, L. Ackermann, D. Rytz, C. Dupré, M. Rico, J. Liu, U. Griebner, V. Petrov "Structural, spectroscopic, and tunable laser properties of Yb3+-doped NaGd(WO4)2"   Optics Express, Vol. 14, pp. 11668-11671, Nov 2006 S. Rivier, X. Mateos, J. Liu, V. Petrov, U. Griebner, M. Zorn, M. Weyers, H. Zhang, J. Wang, M. Jiang "Passively mode-locked Yb:LuVO 4 oscillator"   J. Optical Society of America B, Vol. 23, pp. 2066-2078, Oct 2006 M. Rico, A. Mendez-Blas, V. Volkov, M. A. Monge, C. Cascales, C. Zaldo, A. Kling, M. T. Fernandez-Diaz "Polarization and local disorder effects on the properties of Er3+-doped XBi(YO4)2, X=Li or Na and Y=W or Mo, crystalline tunable laser hosts"   IEEE Journal of Quantum Electronics, Vol. 42, pp. 1008-1015, Oct 2006 X. Mateos, V. Petrov, J. Liu, M. C. Pujol, U. Griebner, M. Aguiló, F. Diaz, M. Galan, G. Viera "Efficient 2-µm continuous-wave laser oscillation of Tm3+:KLu(WO4)2"   Optics Letters, Vol. 31, pp. 2580-2582, Sep 2006 J. Liu, X. Mateos, H. Zhang, J. Wang, M. Jiang, U. Griebner, V. Petrov "Characteristics of a continuous-wave Yb:GdVO4 laser end-pumped by a high-power diode"   Physics of the Solid State, Vol. 48, pp. 1553-1558, Aug 2006 I. B. Krynetskii, A. F. Popkov, A. I. Popov, M. T. Borowiec, A. Nabialek, T. Zayarnyuk, H. Szymczak "First-order phase transition in potassium dysprosium tungstate induced by the field renormalization and softening of the elastic moduli in the vicinity of a structural Jahn-Teller-type transition"   New Journal of Physics, Vol. 8, pp. 124-1-10, Aug 2006 M. T. Borowiec, I. Krynetski, V. P. Dyakonov, A. Nabialek, T. Zayarnyuk, H. Szymczak "Magnetostriction of rare earth double tungstates"   Applied Optics, Vol. 45, pp. 4715-4725, July 2006 S. Bjurshagen, J. E. Hellström, V. Pasiskevicius, M. C. Pujol, M. Aguiló, F. Diaz "Fluorescence dynamics and rate equation analysis in Er3+and Yb3+ doped double tungstates"   Optics Letters, Vol. 31, pp. 1663-1665, June 2006 B. Jacobsson, V. Pasiskevicius, F. Laurell "Tunable single-longitudinal-mode ErYb:glass laser locked by a bulk glass Bragg grating"   J. Optical Society of America B, Vol. 23, pp. 1083-1090, June 2006 M. Rico, U. Griebner, V. Petrov, P. Ortega, X. Han, C. Cascales, C. Zaldo "Growth, spectroscopy, and tunable laser operation of the disordered crystal LiGd(MoO4)2 doped with ytterbium"   Crystal Growth & Design, Vol. 6, pp. 1781-1787, June 2006 A. Aznar, O. Silvestre, M. C. Pujol, R. Solé, M. Aguiló, F. Diaz "Liquid-phase epitaxy crystal growth of monoclinic KLu1-xYbx(WO4)2/KLu(WO4)2 layers"   Journal of Non-Crystalline Solids, Vol. 352, pp. 2367-2370, May 2006 V. Petrov, S. Rivier, U. Griebner, J. Liu, X. Mateos, A. Aznar, R. Solé, M. Aguiló, F. Diaz "Epitaxially grown Yb:KLu(WO4)2 composites for continuous-wave and mode-locked lasers in the 1 µm spectral range"   Journal of Non-Crystalline Solids, Vol. 352, pp. 2371-2375, May 2006 V. Petrov, M. Rico, J. Liu, U. Griebner, X. Mateos, J. M. Cano-Torres, V. Volkov, F. Esteban-Betegón, M. D. Serrano, X. Han, C. Zaldo "Continuous-wave laser operation of disordered double tungstate and molybdate crystals doped with ytterbium"   Proc. SPIE, Vol. 6216, pp. 129-142, May 2006 V. Petrov, K. Petermann, U. Griebner, V. Peters, J. Liu, M. Rico, P. Klopp, G. Huber "Continuous-wave and mode-locked lasers based on cubic sesquioxide crystaline hosts"   Proc. SPIE, Vol. 6216, pp. 161-170, May 2006 V. Petrov, J. Liu, M. Galan, G. Viera, C. Pujol, U. Griebner, M. Aguiló, F. Diaz "Efficient diode-pumped cw Tm:KLu(WO4)2 laser"   Applied Physics B, Vol. 83, pp. 235-239, May 2006 J. E. Hellström, S. Bjurshagen, V. Pasiskevicius, J. Liu, V. Petrov, U. Griebner "Efficient Yb:KGW lasers end-pumped by high-power diode bars"   Applied Physics B, Vol. 83, pp. 55-59, Apr 2006 J. E. Hellström, S. Bjurshagen, V. Pasiskevicius "Laser performance and thermal lensing in high-power diode pumped Yb:KGW with athermal orientation"   Journal of Applied Crystallography, Vol. 39, pp. 230-236, Apr 2006 M. C. Pujol, X. Mateos, A. Aznar, X. Solans, S. Surinac, J. Massons, F. Diaz, M. Aguiló "Structural redermination, thermal expansion and refractive indices of KLu(WO4)2"   Optical Materials, Vol. 28, pp. 519-523, Apr 2006 X. Mateos, R. Solé, Jna. Gavaldá, M. Aguiló, J. Massons, F. Diaz, V. Petrov, U. Griebner "Crystal growth, spectroscopic studies and laser operation of Yb3+ doped potassium lutetium tungstate"   Physica Status Solidi (a), Vol. 203, pp. R19-R21, Mar 2006 X. Mateos, J. Liu, H. Zhang, J. Wang, M. Jiang, U. Griebner, V. Petrov "Continuous-wave and tunable laser operation of Tm:LuVO4 near 1.9 µm under Ti:sapphire and diode laser pumping"   Optical Materials, Vol. 28, pp. 423-431, Mar 2006 X. Mateos, R. Solé, Jna. Gavaldá, M. Aguiló, J. Massons, F. Diaz "Crystal growth, optical and spectroscopic characterisation of monoclinic KY(WO4)2 co-doped with Er3+ and Yb3+"   Chemistry of Materials, Vol. 18, pp. 442-448, Jan 2006 A. Pena, R. Solé, Jna. Gavaldá, J. Massons, F. Diaz, M. Aguiló "Primary crystallization region of NaAl(MoO4)2, Cr3+ doping, crystal growth, and characterization"   Chemistry of Materials, Vol. 18, pp. 221-228, Jan 2006 I. Parreu, J. J. Carvajal, X. Solans, F. Diaz, M. Aguiló "Crystal structure and optical characterization of pure and Nd-substituted type-III KGd(PO3)4"   Physica B, Vol. 371, pp. 205-209, Jan 2006 M. T. Borowiec, A. D. Prokhorov, I. M. Krygin, V. P. Dyakonov, K. Wozniak, L. Dobrzycki, T. Zayarniuk, M. Baranski, W. Domuchowski, H. Szymczak "Crystal structure and EPR of the RbNd(WO4)2 single crystal"   Optics Letters, Vol. 31, pp. 53-55, Jan 2006 Y. E. Romanyuk, C. N. Borca, M. Pollnau, S. Rivier, V. Petrov, U. Griebner "Yb-doped KY(WO4)2 planar waveguide laser"   Chemistry of Materials, Vol. 17, pp. 6746-6754, Dec 2005 J.J. Carvajal, I. Parreu, R. Solé, X. Solans, F. Diaz, M. Aguiló "Growth and structural characterization of Rb3Yb2(PO4)3: a new material for laser and nonlinear optical applications"   Chemistry of Materials, Vol. 17, pp. 6635-6643, Dec 2005 C. Colón, A. Alonso-Medina, F. Fernández, R. Saez-Puche, V. Volkov, C. Cascales, C. Zaldo "Correlation between polymorphism and optical bandwidths in AgNd(WO4)2"   Optics Letters, Vol. 30, pp. 3162-3164, Dec 2005 J. Liu, X. Mateos, H. Zhang, J. Wang, M. Jiang, U. Griebner, V. Petrov "Continuous-wave laser operation of Yb:LuVO4"   Journal of Luminescene, Vol. 115, pp. 131-137, Nov 2005 X. Mateos, R. Solé, G. Gavaldá, M. Aguiló, F. Diaz, J. Massons "Ultraviolet and visible emissions of Er3+ in KY(WO4)2 single crystals co-doped with Yb3+ ions"   Optical Materials, Vol. 27, pp. 1672-1680, Oct 2005 C. Cascales, A. Mendez Blas, M. Rico, V. Volkov, C. Zaldo "The optical spectroscopy of lanthanides R3+ in ABi(XO4)2 (A = Li, Na; X = Mo, W) and LiYb(MoO4)2 multifunctional single crystals: Relationship with the structural local disorder"   Optics letters, Vol. 30, pp. 2484-2486, Sep 2005 S. Rivier, X. Mateos, V. Petrov, U. Griebner, A. Aznar, O. Silvestre, R. Solé, M. Aguiló, F. Diaz, M. Zorn, M. Weyers "Mode-locked operation of epitaxially grown Yb:KLu(WO4)2 composites"   Optics letters, Vol. 30, pp.2427-2429, Sep 2005 J. Liu, U. Griebner, V. Petrov, H. Zhang, J. Zhang, J. Wang "Efficient contininuous-wave and Q-switched operation of a diode-pumped Yb:KLu(WO4)2 laser with self-Raman conversion"   Applied Physics B, Vol. 81, pp. 621-625, Sep 2005 M. Rico, J. Liu, J. M. Cano-Torres, A. Garcia-Cortes, C. Cascales, C. Zaldo, U. Griebner, V. Petrov "Continuous wave and tunable laser operation of Yb3+ in disordered NaLa(MoO4)2"   Applied Physics B, Vol. 81, pp. 49-52, July 2005 J. E. Hellström, G. Karlsson, V. Pasiskevicius, F. Laurell, B. Denker, S. Sverchkov, B. Galagan, L. Ivleva "Passive Q-switching at 1.54 µm of an Er-Yb:GdCa4O(BO3)3 laser with a Co2+:MgAl2O4 saturable absorber"   BENSC Experimental Reports, p. 71, June 2005 M. T. Borowiec, K. Prokes, V. Sikolenko "Structural and magnetic phase transitions of potassium-holmium double tungstates"   Optics Express, Vol. 13, pp. 3465-3470, May 2005 U. Griebner, S. Rivier, V. Petrov, M. Zorn, G. Erbert, M. Weyers, X. Mateos, M. Aguiló, J. Massons, F. Diaz "Passively mode-locked Yb:KLu(WO4)2 oscillators"   Crystal Research and Technology, Vol. 40, pp. 444-448, Apr 2005 L. Kovacs, M. T. Borowiec, A. Majchrowski, A. Baraldi, R. Capelletti "FTIR absorption study of hydroxyl ions in KHo(WO4)2 single crystals"   Physica Status Solidi (a), Vol. 202, pp. R29-R31, Mar 2005 J. Liu, J. M. Cano-Torres, C. Cascales, F. Esteban-Betegón, M. D. Serrano, V. Volkov, C. Zaldo, M. Rico, U. Griebner, V. Petrov "Growth and continuous-wave laser operation of disordered crystals of Yb3+:NaLa(WO4)2 and Yb3+:NaLa(MoO4)2"   IEEE Journal of Quantum Electronics, Vol. 41, pp. 408-414, Mar 2005 U. Griebner, J. Liu, S. Rivier, A. Aznar, R. Grunwald, R. M. Solé, M. Aguiló, F. Diaz, V. Petrov "Laser operation of epitaxially grown Yb:KLu(WO4)2-KLu(WO4)2 composites with monoclinic crystalline structure"   Journal of Crystal Growth, Vol. 275, pp. e819-e825, Feb 2005 M. D. Serrano, F. Esteban-Betegón, C. Zaldo "Growth and spectroscopic investigation of ytterbium-doped NaLa(WO4)2 single crystals"   Physica Status Solidi (a), Vol. 202, pp. R19-R21, Feb 2005 J. Liu, M. Rico, U. Griebner, V. Petrov, V. Peters, K. Petermann, G. Huber "Efficient room temperature continuous-wave operation of an Yb3+:Sc2O3 crystal laser at 1041.6 and 1094.6 nm"   Chemistry of Materials, Vol. 17, pp. 291-300, Jan 2005 V. Volkov, C. Cascales, A. Kling, C. Zaldo "Growth, structure and evaluation of laser properties of LiYb(MoO4)2 single crystal"   Physical Review, Vol. 70, 214115-1...8, Dec 2004 H. L. Xu, M. Nilsson, S. Ohser, N. Rauhut, S. Kröll, M. Aguiló, F. Diaz "Hyperfine structure and homogeneous broadening in Pr3+:KY(WO4)2"   Applied Physics Letters, Vol. 85, pp. 4313-4315, Nov 2004 A. Aznar, R. Solé, M. Aguiló, F. Diaz, U. Griebner, R. Grunwald, V. Petrov "Growth, optical characterization, and laser operation of epitaxial Yb:KY(WO4)2/KY(WO4)2 composites with monoclinic structure"   Optics Express, Vol. 12, pp. 5362-5367, Nov 2004 M. Rico, J. Liu, U. Griebner, V. Petrov, M. D. Serrano, F. Esteban-Betegón, C. Cascales, C. Zaldo "Tunable laser operation of ytterbium in disordered single crystals of Yb:NaGd(WO4)2"   Journal of Applied Physics, Vol. 96, pp. 4656-4658, Oct 2004 C. Cascales, C. Zaldo "Comment on "Spectra and energy levels of Er3+(4f11) in NaBi(WO4)2"[J. Appl. Phys. 94, 7128 (2003)]"   IEEE Journal of Quantum Electronics, Vol. 40, pp. 1244-1251, Sep 2004 V. Petrov, F. Güell, J. Massons, J. Gavaldá, R. M. Solé, M. Aguiló, F. Diaz, U. Griebner "Efficient tunable laser operation of Tm:KGd(WO4)2 in the continuous-wave regime at room temperature"   Journal of Crystal Growth, Vol. 269, pp. 377-384, Sep 2004 Y. E. Romanyuk, I. Utke, D. Ehrentraut, V. Apostolopoulos, M. Pollnau, S. Garcia-Revilla, R. Valiente "Low-temperature liquid-phase epitaxy and optical waveguiding of rare-earth-ion-doped KY(WO4)2 thin layers"   IEEE Journal of Quantum Electronics , Vol. 40, pp. 1056-1059, Aug 2004 X. Mateos, V. Petrov, M. Aguiló, R.M. Solé, J. Gavaldá, J. Massons, F. Diaz, U. Griebner "Continuous-wave laser oscillation of Yb3+ in monoclinic KLu(WO4)2"