Degrees

• Ph.D. degree in Physics, May 2002. Vanderbilt University, Nashville, TN.
• M.S. degree in Physics, May 2000. Vanderbilt University, Nashville, TN.
• Bachelor degree in Industrial Physics Engineering, December 1996. Monterrey Institute of Technology and Advanced Studies, Monterrey, Mexico.

Research Area

• Nano-optical materials

Current Research

• Nanopatterning of metallic nanoparticles using Focused Ion beams.
• Current work on developing of pulsed laser deposition procedure to fabricate vanadium dioxide nanoprecipitates
• Study of nonlinear and ultrafast properties of optical materials

Current Courses

• Phys 117B

Previous Positions

• Research, 2000 - 2002. Oak Ridge National Laboratory, Oak Ridge, TN.
• Research and Teaching Assistant, 1998 - 2000. Vanderbilt University, Nashville TN.
• Teaching assistant of physics laboratory classes.
• Control engineer, 1997. Panasonic, Tijuana, Mexico.
• Research assistant, 1995 - 1996. Research Laboratory for the Electronics Manufacturing Industry, Monterrey, Mexico.

Selected Publications

• J. Y. Suh, E. U. Donev, R. Lopez, L. C. Feldman and R. F. Haglund, Jr., Modulated optical transmission through subwavelength metal-VO2 hole arrays, Appl. Phys. Lett. 88, 133115-1/133115-3 (2006). Also selected for the April 10, 2006 issue of Virtual Journal of Nanoscale Science & Technology. http://www.vjnano.org
• E. U. Donev, J. Y. Suh, F. Villegas, R. Lopez, L. C. Feldman, and R. F. Haglund Jr., "Optical properties of subwavelength hole arrays in vanadium dioxide thin films, Phys. Rev. B rapid communications 73, 201401-1/201401-4 (2006). Also selected for the June 5, 2006 issue of Virtual Journal of Nanoscale Science & Technology. http://www.vjnano.org
• M. D. McMahon, R. Lopez, R. F. Haglund, Jr. Second-Harmonic Generation from Arrays of Symmetric Gold Nanoparticles, Phys. Rev. B rapid communications 73, 041401(R)/1-041401(R)/4 (2006). Also selected for the January 23, 2006 issue of Virtual Journal of Nanoscale Science & Technology. http://www.vjnano.org
• J. Rozen, R. Lopez, L. C. Feldman, R. F. Haglund, Current percolation in nanocrystalline vanadium dioxide thin films, Appl. Phys. Lett. 88, 081902-1/081902-3 (2006)
• M. D. McMahon, R. Lopez, H. M. Meyer III, L. C. Feldman, R. F. Haglund, Jr. Rapid Tarnishing of Silver Nanoparticles in Ambient Laboratory Air, Applied Physics B 80, 915-921 (2005)
• M. Rini, A. Cavalleri, R. Lopez, L. A. Boatner, R. F. Haglund jr. T. E. Haynes, L. C. Feldman, R. W. Schoenlein. Photoinduced Phase transition in VO2 Nanocrystals: Ultrafast Control of the Surface Plasmon Resonance, Optics Letters 30, 558-561 (2005)
• R. Lopez, L. C. Feldman, R. F. Haglund, Jr. Size dependent optical properties of VO2 nanoparticles in ordered arrays. Phys. Rev. Lett. 29, 177403-1/ 177403-4 (2004). Also selected for the Issue 18. V. 10 of the Virtual Journal of Nanoscale Science and Technology. http://www.vjnano.org
• R. Lopez, R. F. Haglund, Jr., L. C. Feldman, T. E. Haynes, L. A. Boatner, Optical nonlinearities in VO2 nanoparticles and thin films, Appl. Phys. Lett. 85, 5191-5193 (2004). Also selected for the January 2005 Issue of the Virtual Journal of Ultrafast Science. http://www.vjultrafast.org
• R. Lopez, T. E. Haynes, L. A. Boatner, L. C. Feldman and R. F. Haglund Jr. Switchable reflectivity on Silicon from composite VO2-SiO2 protecting layer. Appl. Phys. Lett. 85, 1410-1412 (2004)
• J. Y. Suh, R. Lopez, L. C. Feldman, R. F. Haglund, Jr. Semiconductor to metal phase transition in the nucleation and growth of VO2 nanoparticles and thin films, J. Appl. Phys. 96, 1209-1213 (2004).
• L. C. Feldman, G. Lupke, N. H. Tolk, R. Lopez, R. F. Haglund Jr., T. E. Haynes, L. A. Boatner, Particle-solid interactions and 21st century materials science. Nucl. Inst. and Met. Phys. Research B. 212, 1-7 (2003).
• R. Lopez, L. A. Boatner, T. E. Haynes, L. C. Feldman and R. F. Haglund Jr., Synthesis and characterization of size-controlled vanadium dioxide nanocrystal in a fused silica matrix. J. Appl. Phys. 92, 4031-4036 (2002).
• R. Lopez, T. E. Haynes, L. A. Boatner, L. C. Feldman and R. F. Haglund Jr., Temperature-controlled surface plasmon resonance in VO2 nanorods. Optics lett. 27, 1327-1330 (2002).
• R. Lopez, T. E. Haynes, L. A. Boatner, L. C. Feldman and R. F. Haglund Jr., Size effects in the structural phase transition of VO2 nanoparticles. Phys. Rev. B. 65, 224113-1/224113-5 (2002).
• R. Lopez, R. Ruiz, R.F. Haglund Jr., L.C. Feldman, Pulsed laser deposition of conductive metallo-dielectric optical filters. Appl. Phys. A 74, 307-310 (2002).
• R. Lopez, L. A. Boatner, T. E. Haynes, R. F. Haglund Jr. and L. C. Feldman, Enhanced hysteresis in the semiconductor-to-metal phase transition of VO2 precipitates formed in SiO2 by ion implantation. Appl. Phys. Lett. 79, 3161-3163 (2001).
• Rene Lopez, Richard F. Haglund, Jr., Leonard C. Feldman, Lynn A. Boatner, and Tony E. Haynes Optical nonlinearities and the ultrafast phase transition of VO2 nanoparticles and thin films. Proceedings SPIE Vol. 6118, 61180O-1/61180O-8 (2006)
• Matthew D. McMahon, Christopher T. Bowie, René Lopez, Leonard C. Feldman, and Richard F. Haglund Jr. Second harmonic generation from centrosymmetric arrays of gold nanoparticles. Proceedings SPIE Vol. 6106, 61061N-1/61061N-6 (2006)
• R. Lopez , L. C. Feldman, R. F. Haglund, Jr Fabricating arrays of vanadium dioxide nanodisks by FIB lithography and PLD Proceedings of SPIE - The International Society for Optical Engineering - Photon Processing in Microelectronics and Photonics III, 5339, 601-610 (2004).
• M. Rini, A. Cavalleri, R. Lopez, L. A. Boatner, R. F. Haglund jr. T. E. Haynes, L. C. Feldman, R. W. Schoenlein. Photoinduced Ultrafast control of a surface plasmon resonance via the insulator to metal phase transition in VO2 nanoparticles. Proceedings of 14th International Conference on ultrafast phenomena, 792-794 (2004)
• R. Lopez , R. F. Haglund, Jr. Ion beam lithography and fabrication ordered arrays of VO2 nanoparticles, Mat. Res. Soc. Symp. Proc. 820, R1.5.1-1/ R1.5.1-6 (2004)
• A.B. Hmelo, M.D. McMahon, R. Lopez, R.H. Magruder III, R.A. Weller, R.F. Haglund Jr. and L.C. Feldman, “Fabrication of Metallic Nanocrystal Arrays for Nanoscale Nonlinear Optics”, Ceramic Nanomaterials and Nanotechnology II, Ceramic Transactions V. 148, American Ceramic Society, 61-68, (2003).
• M. D. MacMahon, A. B. Hmelo, R. Lopez, W. T. Ryle, Allen T. Newton, Richard F. Haglund, L. C. Feldman, R. A. Weller, R. H. Magruder III. Fabrication of ordered Metallic nanocluster arrays using focused ion beam. Mat. Res. Soc. Symp. Proc. 739, 53-57 (2003).
• García-Llamas R, Gaspar-Armenta JA, Ramos-Mendieta F, López R., Haglund Jr. RF and Ruiz R: Injection of light into a planar dielectric wave guide of metallic walls. Proceedings of SPIE. 4439: 88-94 (2001)
• Rene Lopez Noriega, Doctoral dissertation: Metal Semiconductor Phase Transition in VO2 nanocrystals. Vanderbilt University. May 2002.