Los Alamos National Laboratory
Nanotechnology and Advanced Spectroscopy Team

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Bogdan Diaconescu

Bogdan Diaconescu

Phone: 505-665-1746
Email: cbdia@lanl.gov
www: davinci.unh.edu/~bogdan

Education

  • 2007: Ph.D. in Physics, University of New Hampshire, US
  • 1999: M.S. in Applied Nuclear Physics and Engineering, University of Bucharest, Romania
  • 1998: B.Sc. in Physics, University of Bucharest, Romania

Professional Career

  • 2010 - present: Postdoctoral Research Associate, Los Alamos National Laboratory, Physical Chemistry and Applied Spectroscopy Division , C-PCS, Los Alamos, New Mexico, US
  • 2007 - 2010: Research Scientist, Department of Physics and Center for High-Rate Nano-manufacturing, University of New Hampshire, US
  • 1999 - 2001: Research Assistant at the Solid States Quantum Electronics Laboratory, National Institute for Lasers, Plasma, and Radiation Physics, Bucharest, Romania

Current Research

  • Currently my research is focused on single semiconductor nanocrystal dot scanning tunneling spectroscopy and developing an ultra-high vacuum and low temperature scanning tunneling microscope with optical access for simultaneous electron tunneling and optical spectroscopy.

Previous Research

  • Solid state physics of dimensionally reduced systems, mainly focused on the geometric, electronic, dynamical, and optical properties of surfaces and thin films and instrumentation development. I have designed and built an ultrahigh vacuum - variable temperature - scanning tunneling microscope and I used it to study surface reconstructions, self-assembly processes on strained metallic interfaces, ultra-thin films growth, self-assembled organic monolayers, and apply them towards supramolecular patterning on nano-structured multi-functional surfaces. I have been also studying novel acoustic collective electronic excitations at surfaces with electron spectroscopy as well as with synchrotron radiation-based techniques.

Selected Awards

  • 2010: Highlighted article in EPL on Acoustic surface plasmon on Cu(111)
  • 2010: NSF-DMR-1006863 "Strained Ultrathin Interfaces for Controlled Molecular Self-Assembly", Co-PI while at UNH
  • 2008: Research/Scholarship/Creativity Award from the University of New Hampshire
  • 2007: The Morton M. Traum Surface Science Division Student Award for the best student paper based on work leading to a Ph.D. thesis, American Vacuum Society (AVS), 2005
  • 2007: AVS Dorothy M. and Earl S. Hoffman Travel Grant
  • 1993-1998: Study scholarship at the University of Bucharest

Selected Publications

  • K. Pohl, B. Diaconescu, G. Vercelli, et al., Acoustic surface plasmon on Cu(111), EPL 90, 57006 (2010).
  • G. Nenchev, B. Diaconescu, F. Hagelberg, K. Pohl, Self-Assembly of methanethiol on the reconstructed Au(111) surface, Phys. Rev. B 80, 081401 (2009).
  • B. Diaconescu, T. Yang, S. Berber et al., Molecular Self-Assembly of functionalized fullerenes on a metal surface, Phys. Rev. Lett 102, 056102 (2009).
  • B. Diaconescu, G. Nenchev, J. de la Figuera, K. Pohl, An ultra high vacuum fast-scanning and variable temperature scanning tunneling microscope for large scale imaging, Rev. Scient. Instrum. 78, 103701 (2007).
  • B. Diaconescu, K. Pohl, L. Vattuone, et al., Low-energy acoustic plasmons at metal surfaces, Nature 448, 57-59 (2007).
  • B. Diaconescu, G. Nenchev, J. Jones, K. Pohl, Self-organized nanotemplating on misfit dislocation networks investigated by scanning tunneling microscopy, Microsc. Res. Techniq. 70, 547-553 (2007).

August 2010

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