Scholars@Duke publication: Compact microscope-based 850-nm optical tweezers

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

Author Sonia Grego Electrical and Computer Engineering

Published In

Proceedings of SPIE - The International Society for Optical Engineering

ISSN

0277-786X

ISBN

9780819419934

Publication Date

January 1, 1996

Volume

2629

Start / End Page

56 / 61

Citation

APA

Chicago

ICMJE

MLA

NLM

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

ISBN

9780819419934

Publication Date

January 1, 1996

Volume

2629

Start / End Page

56 / 61