Alvaro Jiménez

Alvaro Jimenez
Nanostructures to improve SPR biosensors

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Project
The project is focused on the fabrication of nano-structures to couple/decouple Surface Plasmon Waves (SPWs) in order to improve the sensitivity of commercial and research prototypes. Studies using fabrication techniques (like e-beam and photolithography) and surface analysis were made in order to obtain the longest propagation distance for SPWs. This knowledge is used for the fabrication and characterization of prototypes.
Improvement of sensitivity of commercial SPR setups using microstructures and the supply of monolithically integrated prototypes are two of the goods given by the project. Looking at integration with easy fabrication and low manufacturing cost are two of the main keys envisioned during the development of my studies.
The video shows the principle of monolithically integrated Surface Plasmon Resonance device for biosensing purpose and shows the lightning of the first prototype using a VLED.

Here is the detail of the prototype made at the end of 2012 where the gratings are shown under certain conditions of ambient light. Click the image for the interactive display.

The picture on the right shows the VLED prototype within the assembly of the microfluidic system. The picture on the left shows the set of samples used to increase the sensitivity of a commercial device using microgratings. These microgratings are located in the darker area on the left of each sample

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Education
  • 2008 – 2013
    PhD Nanofabrication
    University of Sherbrooke, Canada
  • 2006 – 2008
    MSc Electrical Engineering – Biophotonics
    University of Sherbrooke, Canada
  • 1996 – 1999
    M.B.A.
    University of Valley, Colombia
  • 1987 – 1992
    BSc Electronics and Telecommunications
    University of Cauca, Colombia
Work Experience
  • 2009 –
    Logistic officer
    Canadian Forces, Canada
  • 1997 – 2004
    Transmission Director
    Transtel, Colombia
  • 2002 – 2003
    Teacher
    ICESI University, Colombia
  • 1992 – 1997
    Transmission Engineer
    Emcali, Colombia
Achievements
  • 2011
    Certificate in improvement of research skills
    Université de Sherbrooke, Canada
  • 1999
    Telematic Specialist certificate
    University of Cauca, Colombia
  • 1994
    SDH Specialist
    Munich, Germany

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Published articles with reading committee:
  • Jimenez A., Lepage D., Beauvais J. et al., Quality of surfaces in the fabrication of monolithic integrated light source SPR system for bio-sensing purposes, Microelectronic Engineering (2012).
  • Lepage D., Carrier D., Jimenez A. et al., Plasmonic propagations distances for interferometric surface plasmon resonance biosensing, Nanoscale Research Letters, (2012).
  • Lepage, D., Jimenez, A., Carrier, D. et al., Hyperspectral imaging of diffracted surface plasmons., Optics Express, v 18, n 26, p 27327-35, 2010
  • Hoa, X.D., Martin, M., Jimenez, A. et al., Fabrication and characterization of patterned immobilization of quantum dots on metallic nano-gratings, Biosensors and Bioelectronics, v 24, n 4, p 976-981, December 1, 2008

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Contact
Alvaro Jimenez
Université de Sherbrooke
Interdisciplinary Institute for Technological Innovation (3IT)
3000, boul. de l’Université
Sherbrooke, Québec
J1K 0A5, CANADA
Office: P2-4000.02
Phone: +01.819.821.8000 ext. 65722
Fax: +01.819.821.7937
Email: a.jimenez@usherbrooke.ca
Web: https://dubowski.ca/ajimenez/

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