Alexander A. Puretzky

  
 
 Alexander A. Puretzky
Research Scientist, Solid State Division, Oak Ridge National Laboratory
P.O. Box 2008, Oak Ridge, Tennessee 37831-6056
(423) 576-6651, e-mail: 1ap@ornl.gov
 

EDUCATION:

Ph.D., (Physics), Institute of Spectroscopy, Troitsk, Moscow,1977.
M.S., (Physics), Moscow Inst. for Physics and Tech., Moscow,1971.
B.S., (Physics), Moscow Inst. for Physics and Tech., Moscow,1969.

EMPLOYMENT:

Research Scientist, Oak Ridge National Laboratory (ORAU), Oak Ridge, Tennessee, 1992 to present.
Research Scientist, Senior Scientist and Group Leader Institute of Spectroscopy, Troitsk, Moscow, 1971-1992.
Science Alliance Professor of Physics (part time), Moscow Inst. for Physics and Tech., 1989 -1992.

TECHNICAL SPECIALTIES:

Synthesis and characterization of nanostructured materials including nanotubes and nanoparticles. Development of fast plasma diagnostics and studies of gas phase processes during growth of thin films and nanomaterials. Techniques include optical imaging and spectroscopy, laser induced fluorescence, Rayleigh and Raman scattering, ion probe and mass spectrometry. Laser ablation synthesis and study of fullerenes. Experimental laser spectroscopic investigations of atoms (resonant multi-step ionization) and molecules (IR multiphoton dissociation). Laser isotope separation.

AWARDS:

Lockheed Martin Sustained Research Award, 1999.
Lockheed Martin Technical Achievement Award, 1998.
Highest National Soviet Union Award for young scientists for outstanding achievement in science: "Isotopically-Selective Dissociation of Molecules and Isotope Separation in Strong Infrared Laser Field", 1978.

PUBLICATIONS:

Over 120 papers in refereed journals in areas of nanomaterials and thin films, laser plasma dynamics and diagnostics, laser spectroscopy and laser isotope separation. Co-author of two books (Chemistry of Plasma: Selective Photoionization of Atoms by Laser Radiation, 1997 (in Russian) and Laser Spectroscopy of Highly Vibrationally Excited Molecules, ed. V.S. Letokhov, Adam Hilger,1989).

REFERENCES:

Dr. David B. Geohegan, ORNL, Bldg. 3150, MS 6056, Post Office Box 2008, Oak Ridge, Tennessee 37831. Phones: (423)476-5097, (423)576-6651, e-mail: odg@ornl.gov
Dr. Robert E. Haufler, Comstock,1005 Alvin Weinberg Drive, Oak Ridge, Tennessee 37830. Phone: (423)482-2133.
Dr. Douglas H. Lowndes, Corporate Fellow and Research Group Leader, Semiconductor Physics, Thin Films, and Photovoltaic Materials.Phone: (423)574-6306, e-mail:vdh@ornl.gov

RECENT PUBLICATIONS:

1999 "Imaging of Vapor Plumes Produced by Matrix Assisted Laser Desorption: A New Plume Sharpening Effect" A.A. Puretzky, G.B.Geohegan, G.B. Hurst, M.V. Buchanan and B. Luk'yanchuk, Phys. Rev. Lett. (in press).

1999 "Gas-Phase Nanoparticle Formation and Transport During Pulsed-Laser Deposition of Y1Ba2Cu3O7-d", D.B. Geohegan, A.A. Puretzky, D.J. Rader, App. Phys. Lett. (in press).

1998 "Time-Resolved Imaging of Gas Phase Nanoparticle Synthesis by Laser Ablation", D.B. Geohegan, A.A. Puretzky, G. Duscher, and S.J. Pennycook, App. Phys.Lett. 72, 2987 (1998).

1998 "Photoluminescence from Gas-Suspended SiOx Nanoparticles Synthesized by Laser Ablation", D.B. Geohegan, A.A. Puretzky, G. Duscher, and S.J. Pennycook, Appl. Phys. Lett. 73, 438 (1998).

1998 "Gas-phase diagnostics and LIF-imaging of 3-hydroxypicolinic acid maldi-matrix plumes", A.A. Puretzky and D.B. Geohegan, Chem. Phys. Lett. 286, 425 (1998).

1996 "Synthesis of Novel Thin-Film Materials by Pulsed Laser Deposition," D.H. Lowndes, D.B.Geohegan, A.A. Puretzky, D.P. Norton, and C.M. Rouleau, Science 273, 898-903 (1996). 

1996 "Laser Ablation Plume Thermalization Dynamics in Background Gases: Combined Imaging, Optical Absorption and Emission Spectroscopy, and Ion Probe Measurements," David B. Geohegan and Alexander A. Puretzky, Appl. Surf. Science 96-98, 131 (1996).

1996 "Comparative Diagnostics of ArF- and KrF-Laser Generated Carbon Plumes used for Amorphous Diamond-like Carbon Film Deposition," A. A. Puretzky, D. B. Geohegan, G. E. Jellison Jr., and M.M. McGibbon, Appl. Surf. Science 96-98, 859 (1996).

1996 "Modeling of Thermal, Hydrodynamic, and Dynamic Deposition Processes for Pulsed-Laser Deposition of Thin Films," C. L. Liu, J. N. LeBoeuf, R. F. Wood, D. B. Geohegan, J. M. Donato, K. R. Chen, and A. A. Puretzky, Phys. Plasmas 3, 2203 (1996).

1996 "Dynamical Modeling of Laser Ablation Processes," J. N. Leboeuf, K. R. Chen, J. M. Donato, D. B. Geohegan, C. L. Liu, A. A. Puretzky, and R. F. Wood, Appl. Surf. Science 96-98, 14 (1996).

1996 "Laser-Solid Interactions and Dynamics of the Ablated Material," K. R. Chen, J. N. Leboeuf, R. F. Wood, D. B. Geohegan, J. M. Donato, C. L.Liu, and A. A. Puretzky, Appl. Surf. Science 96-98, 45 (1996).

1995 "Direct Monitoring of Laser Absorption of MALDI Matrices by Fast Piezoelectric Transducer," N.I.Taranenko, V.V.Golovlev, A.A. Puretzky, and S.L. Allman, Chem. Phys. Lett., 234,165 (1995).

1995 "Accelerated expansion of laser-ablated materials near a solid surface" K. R. Chen, J.N. Leboeuf, R. F. Wood, D. B. Geohegan, A. A. Puretzky, and J. M. Donato, Phys. Rev. Lett., 75, 4706 (1995).

1995 "Dynamics of Laser Ablation Plume Penetration Through Low Pressure Background Gases," D. B. Geohegan and A. A. Puretzky, Appl. Phys. Lett. 67, 197 (1995).

1995 "Laser Ablation Plume Thermalization Dynamics in Background Gases Studied by Time-Resolved Imaging, Spectroscopic, and Ion Probe Diagnostics," David B. Geohegan and Alexander A. Puretzky, p. 15 in Laser-Induced Thin Film Processing, ed. by Jan J. Dubowski, SPIE-The International Society for Optical Engineering," San Jose, California, 1995.

1995 "Amorphous Diamond-Like Carbon Film Growth by KrF- and ArF- Excimer Laser PLE; Correlation with Plume Properties," A. A. Puretzky, D. B. Geohegan, G. E. Jellison, Jr. and M. M. McGibbon, D. B. Geohegan and A. A. Puretzky, in Film Synthesis and Growth Using Energetic Beams, edited by H.A. Atwater, J.T. Dickinson, D.H. Lowndes, A. Polman (Mat. Res. Soc. Symp. Proc. 388, Pittsburgh, PA (1995)) p. 145-150.

1995 "Collisional Effects of Background Gases on Pulsed-Laser Deposition Plasma Beams," David B. Geohegan and Alex A. Puretzky, in Film Synthesis and Growth Using Energetic Beams, edited by H.A. Atwater, J.T. Dickinson, D.H. Lowndes, A. Polman (Mat. Res. Soc. Symp. Proc. 388, Pittsburgh, PA (1995)) p. 21-26 .

1995 " Modeling of thermal, electronic, hydrodynamic, and dynamic deposition processes for pulsed-laser deposition of thin films.", C. L. Liu, J.N. Leboeuf, R. F. Wood, R.F., D. B. Geohegan, and A. A. Puretzky p. 675-680 in Beam-Solid Interactions for Materials Synthesis and Characterization Edited by: Jacobson, D.C.; Luzzi, D.E.; Heinz, T.F.; Iwaki, M. Pittsburgh, Mat. Res. Soc. Symp. Proc. 388, Pittsburgh, PA (1995).

1995 "Vapor breakdown during ablation by nanosecond laser pulses." C. L. Liu, J. N. Leboeuf, R. F. Wood, D. B. Geohegan, K.R. Chen, J.M. Donato, and A. A. Puretzky, p.133-138 in Film Synthesis and Growth Using Energetic Beams, edited by H.A. Atwater, J.T. Dickinson, D.H. Lowndes, A. Polman Mat. Res. Soc. Symp. Proc. 388, Pittsburgh, PA (1995).

1995 "Growth of Highly Doped p-Type ZnTe Films by Pulsed-Laser Ablation in Molecular Nitrogen," Douglas H. Lowndes, C. M. Rouleau, J. W. McCamy, J. D. Budai, D. B. Poker, D. B. Geohegan, A. A. Puretzky, and Zhen Zhu, p.21 in Film Synthesis and Growth Using Energetic Beams, edited by H.A. Atwater, J.T. Dickinson, D.H. Lowndes, A. Polman Mat. Res. Soc. Symp. Proc. 388, Pittsburgh, PA (1995).

1995 "Growth of Highly Doped p-Type ZnTe Films by Pulsed-Laser Ablation in Molecular Nitrogen," C. M. Rouleau, D. H. Lowndes, J. W. McCamy, J. D. Budai, D. B. Poker, D. B. Geohegan, A. A. Puretzky, and S. Zhu, Appl. Phys. Lett. 67, 2445 (1995).

1994 "Gated ICCD Photography of the KrF-Laser Ablation of Graphite into Background Gases," David B. Geohegan, A. A. Puretzky, R. L. Hettich, X.-Y. Zheng, R. E. Haufler, and R. N. Compton, p.349 in Advanced Materials '93, IV/ Laser and Ion Beam Modification of Materials, edited by I. Yamada, et al. IUMRS-ICAM Conference , Trans. Mat. Res. Soc. Jpn., Volume 17, (1994).

1994 "Laser Ablation of Graphite in Different Buffer Gases," A. A. Puretzky, D. B. Geohegan, R. E. Haufler, R. L. Hettich, , X.-Y. Zheng, and R. N. Compton, in Laser Ablation: Mechanisms and Applications II, edited by J.C. Miller and D.B. Geohegan,Amer. Inst. of Physics Conf. Proc. 288 : (Amer. Inst. of Physics, New York , 1994 ) p. 365.
 

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