University of California Riverside
 Department of Electrical Engineering

 Dr. Pablo Gomez, Ph.D.
 Researcher
 

  Center for 3D Electronics laboratory.

 Education and Training:

  • Post-Doctoral Research, University of California Riverside, Fall 2006 - Spring 2007
  • Ph.D. in Electrical Engineering, Florida International University,  Miami, Spring 2006
  • Master of Science in Electrical Engineering, MSEE, Florida International University, Miami, Summer 2003
  • Information Systems Specialist Degree from Los Andes University, Bogota, Colombia, 1992
  • Bachelor of Science  in Electronics Engineering, BSEE, Javeriana University, Bogota, Colombia, 1982

 Research:

  I am presently working on developing a technique to improve the resolution of Magnetic Force Microscopy (MFM). My team is  developing special  nanoprobes and adding Digital Signal  Processing (DSP) methods, namely, First Derivative of Compensation Field, to increase the resolution of MFM systems. Using this method, we have achieved the highest MFM resolution known today. The figure below shows the enhanced image of the magnetization of a 2um x 2um sample obtained with MFM using a nanoprobe of 90 nm in diameter sputtered with 10 nm of Cobalt and magnetized to saturation.

We are also developing a Nanoliter Volume Nuclear Magnetic Resonance (NMR) System using Tunnelling Magneto Resistance (TMR)  devices. The sensor is composed of a ring-shaped Neodymium Iron Boron permament magnet and tunneling magneto resistance (TMR) devices. The TMR devices have an area of 100 nm x 100 nm with free and pinned layers made of Iron Cobalt and a 0.7 nm Aluminum Oxide barrier.

 My interests are in the Nanotechnology area, mainly Magnetic Devices (GMR, TMR), NMR, MRI (Magnetic Resonance Imaging), Quantum Electronics and Spintronics in  general.

 Other areas of interest are:

  • Digital Signal Processing (DSP)
  • Speech and Speaker Recognition and Neural Networks
  • Biomedical Engineering with emphasis in Computational Neuroscience
  • Analog and Digital Communications
  • Computer Architecture and VLSI
REFEREED PUBLICATIONS
  1. Pablo Gomez, Dmitri Litvinov, and Sakhrat Khizroev, Minimum Parameters Required to Enable Low-Field Low-Size Nano Nuclear Magnetic Resonance (NanoNMR), IEEE Transactions on Magnetics, Volume 44, Issue 11, December 2008.
  2. Pablo Gomez, Dmitri Litvinov, and Sakhrat Khizroev, A Nanoscale Nuclear Magnetic Resonance System for Signature-Based Detection of Biomolecules, Journal of Nanoelectronics and Optoelectronics, Volume 3, Number 2, July 2008 , pp. 123-132(10)
  3. Pablo Gomez, Dmitri Litvinov, and Sakhrat Khizroev, Calculation of Minimum Parameters Required for Low-Field Low-Size Nano Nuclear Magnetic Resonance (NanoNMR), IEEE Proceedings of INTERMAG 2008, May 4-8, 2008..
  4. P. Gomez, D. Litvinov, and S. Khizroev, A method to design high SNR nanoscale magnetic sensors using an array of tunneling magneto-resistive (TMR) devices, Journal of Physics D: Applied Physics 40, 4396-404 (2007) Online version
  5. N. Amos, A.Lavrenov, R. Ikkawi, P. Gomez, F. Candocia, R. Chomko, D. Litvinov and S. Khizroev, Nanomagnetic Probes To Image Patterned Media for Information Densities Beyond Ten-Terabit-Per-Square-Inch, Journal of Nanoelectronics and Optoelectronics, Vol 1, 2-3, 2007
  6. Pablo Gomez and Kang K. Yen, A Speaker Recognition System Using Multiple Parametric Self-Organizing Maps (M-PSOM), Online, International Information Institute, Tokyo, 2004
  7. Pablo Gomez, State-Of-The-Art of MEMS Technology for Design and Fabrication of Micro-Mirrors , IEEE Proceedings of International Conference AndesCon 2004
 NON REFEREED PUBLICATIONS, TUTORIALS AND PROJECTS
  1. InGaAs Laser Parameters Calculations
  2. A Practical Method to Design Equiripple FIR Filters
  3. Implementation of the 2 Dimension Fast Fourier Transform (FFT) of an Image
  4. EKG Signal Processing: An Algorithm to detect and align QRS Complexes
  5. Power Analysis of Alpha and Beta Waves in EEG Signals to Determine the most likely state of a subject
  6. Design of an IIR Filter using the Bilinear Transformation Method
  7. VLSI: A Custom Software Simulation Tool for CMOS Calculations
  8. Speech Coding (LPC) in Wireless Communications Systems
  9. A Practical Guide to Design Digital IIR Bandpass Chebyshev Filters
  10. A Practical Guide to Model Fuzzy Inference Systems using MATLAB and Simulink

 TEACHING

  Visiting Professor at Florida International University.