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Research Seminar Invitation    
 
Title:
Optical micromanipulation using novel light beams.
Date: Friday, January 30, 2009
Time: 12:00-1:00PM
Place: CIAP Building, Room 416
Tecnológico de Monterrey, Monterrey Campus 
 Speaker: Julio César Gutiérrez Vega , Optics Center , Tecnológico de Monterrey, Monterrey Campus 

This lecture was awarded first place of the Rómulo Garza Prize 2008 given by the Tecnológico de Monterrey
 
Abstract:
In recent times optical micromanipulation has engendered some major studies across all of the natural sciences. Though over thirty-five years old, the field is finding new applications and has lost none of its dynamic or innovative character: a small trapped object can be manipulated under the action of an optical force enabling precision displacements right down to the angstrom level. In this talk we review the basic principles of optical micromanipulation and discuss the observation of the orbital motion of particles in the Mie regime as they are trapped within the multiringed transverse field of a rotating helical Mathieu light beam. The observed motion results as angular momentum is transferred to the particles from the orbital component of this novel light beam. Dynamic variables of the motion of the particles such as angular velocity and acceleration are measured and compared to the theoretical predictions from numerical simulation.
 
Bio:
Julio C. Gutiérrez-Vega is professor at the Physics Department and heads the Optics Center and the Photonics and Mathematical Optics Group at the Tecnológico de Monterrey, Monterrey, México. Dr. Gutiérrez received the BS degree in Physics (1991) and the MSc degree in Electrical Engineering (1995) from the Tecnológico de Monterrey. He holds a PhD in Optics (2000) from National Institute for Astrophysics, Optics, and Electronics in Puebla, México. Dr. Gutierrez He has authored and co-authored about 59 journal papers and 71 conference proceedings. His research activities are focused on the nondiffracting propagation of wavefields, special solutions of the Helmholtz and paraxial wave equation: Mathieu, parabolic, and Ince-Gaussian beams, and laser resonators. Dr. Gutierrez serves on the editorial committee of the “Optics and Photonics News” and the scientific committee of the international conference “Laser Beam Shaping”. Dr. Gutierrez is member of the National System of Researchers (SNI) of Mexico in the level 3, of the Mexican Academy of Sciences (since 2004), of the Optical Society of America (OSA), and the International for Society Optical Engineering (SPIE).
Web site: http://homepages.mty.itesm.mx/jgutierr/

Organized by the Doctoral Program in Information Technologies and Communications (DTC) of the Tecnológico de Monterrey, Monterrey Campus. Seminar Web Page: http://www.mty.itesm.mx/dtie/doctorados/gt6005-11/ 

José Luis Gordillo, Professor           Phone: +52 (81) 8328-4423, 8328-4379
Center for IC and Robotics, Tecnológico de Monterrey    Fax: +52 (81) 8328-4189
5o piso Torre Sur, CETEC                Net: JLGordillo@itesm.mx
Av. Eugenio Garza Sada 2501             Home Page:
64849 Monterrey, N.L., MEXICO           http://RobVis.mty.itesm.mx/~gordillo