1 July 1997 Optical tweezers based on near infrared diode laser
Author Affiliations +
Emission from a single-mode 100 mW diode laser at 840 nm is used to create optical tweezers: the trapping laser beam is introduced into a microscope and focused by the objective. The microscope also allows monitoring of the motion of the trapped particles. The optical tweezers were monitored with objectives having different numerical apertures between 0.65 and 1.3. The optical trapping of polystyrene spheres with a radius between 0.11 and 7.45 μm and of biological objects, the flagellated alga Tetraselmis, with typical dimensions of 8×8×13 μm3 were studied. The efficiency of the optical tweezers has been characterized through a parameter Q and compared with theoretical models.
S. Grego, Ennio Arimondo, Carlo Frediani, "Optical tweezers based on near infrared diode laser," Journal of Biomedical Optics 2(3), (1 July 1997). https://doi.org/10.1117/12.275449 . Submission:


A novel optical tweezers system
Proceedings of SPIE (November 28 2007)
Compact microscope-based 850-nm optical tweezers
Proceedings of SPIE (January 08 1996)
Optical tweezers 3D photonic force spectroscopy
Proceedings of SPIE (February 09 2006)

Back to Top