Optical tweezers for manipulating nano-micro objects of photochemical or biological interests
Mariela Rodriguez-Otazo, Jean-Pierre Galaup Thèse co-tutelle Université Paris XI-InSTEC La Havane (Cuba) Co-tuteur Prof. Angel Augier
We are developing an experiment for the manipulation under an optical microscope of nano-micro sized objects by means of optical tweezers. Optical tweezers are obtained when a laser beam is tightly focused through a microscope objective with a high numerical aperture (Fig. 1). The forces induced by the refracted light on small sized objects, typically silica or latex spheres, allow the trapping and the manipulation of these objects.
Figure 1 : Scheme and principle of the experimental (...)