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Compact microscope-based 850-nm optical tweezers

Publication ,  Conference
Frediani, C; Grego, S; Guidoni, L; Arimondo, E
Published in: Proceedings of SPIE - The International Society for Optical Engineering
January 1, 1996

Emission from a single mode 100 mW laser diode at 850 nm is used for realizing optical tweezers: the laser beam is introduced into a microscope and focused by the objective into the object plane. Injection of the beam into a 40X microscope objective has been studied and the position and the size of the waist measured. The trap performance was studied as a function of the dimensions of the trapped particles. Trapping of polystyrene latex spheres of different size (from 0.2 micrometer to 6 micrometer) was observed in different conditions of laser power and transverse velocity of the spheres. Biological objects, Tetraselmis, of large dimension (around 10 micrometer) were also studied. We demonstrate the existence of an optimal range of size of the particles to be trapped. Furthermore we measure minimum trapping power required for trapping and the maximum speed of the trapped objects as a function of the dimensions.

Duke Scholars

Sonia Grego
Author Sonia Grego Electrical and Computer Engineering

Published In

Proceedings of SPIE - The International Society for Optical Engineering

ISSN

0277-786X

Publication Date

January 1, 1996

Volume

2629

Start / End Page

56 / 61

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
 

Citation

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ICMJE
MLA
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Frediani, C., Grego, S., Guidoni, L., & Arimondo, E. (1996). Compact microscope-based 850-nm optical tweezers. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 2629, pp. 56–61).
Frediani, C., S. Grego, L. Guidoni, and E. Arimondo. “Compact microscope-based 850-nm optical tweezers.” In Proceedings of SPIE - The International Society for Optical Engineering, 2629:56–61, 1996.
Frediani C, Grego S, Guidoni L, Arimondo E. Compact microscope-based 850-nm optical tweezers. In: Proceedings of SPIE - The International Society for Optical Engineering. 1996. p. 56–61.
Frediani, C., et al. “Compact microscope-based 850-nm optical tweezers.” Proceedings of SPIE - The International Society for Optical Engineering, vol. 2629, 1996, pp. 56–61.
Frediani C, Grego S, Guidoni L, Arimondo E. Compact microscope-based 850-nm optical tweezers. Proceedings of SPIE - The International Society for Optical Engineering. 1996. p. 56–61.

Published In

Proceedings of SPIE - The International Society for Optical Engineering

ISSN

0277-786X

Publication Date

January 1, 1996

Volume

2629

Start / End Page

56 / 61

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering